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Search results “Cannot set property value of null in javascript”
Linking javascript to html error
 
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Uncaught TypeError: Cannot set property 'innerHTML' of null at... Along with the error at the end of video another error rising situation is demonstarted. --------------------------------------------------------------------------------------------------- A pinch of music : Track: Floatinurboat x Chris Linton - Holding On [NCS Release] Music provided by NoCopyrightSounds. Watch: https://youtu.be/X5n9OwR6taQ Free Download / Stream: http://ncs.io/HoldingOnYO ---------------------------------------------------------------------------------------------------
Views: 59 its an error
How to fix :JavaScript runtime error Unable to set property className of undefined or null reference
 
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0x800a138f - JavaScript runtime error: Unable to set property 'className' of undefined or null reference More info with ready to copy/paste code: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/01/how-to-fix-error-javascript-runtime.html
Views: 4441 Vis Dotnet
Datatables error - Uncaught TypeError Cannot set property 'nTf' of undefined when add footer
 
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i get error like this : "Uncaught TypeError Cannot set property 'nTf' of undefined" when trying to add footer - datatables. The error caused by, you have more td on your footer, so remove some useless td.
Views: 5530 Ambar Hasbiyatmoko
JavaScript Tutorial - TypeError and ReferenceError issues with object
 
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You can access any undefined property of object and return value will be undefined. JavaScript doesn't give any error when you try to access undefined property name. Property on null or undefined is not possible. var obj = {x:1,y:2}; obj.x; //1 obj.z; //undefined obj.z.x; //TypeError var n = null; n.prop=5; //TypeError if variable y is not declared. y.x; //reference error --------------------------------------------------------------------------------------- Facebook page: https://www.facebook.com/pages/WebTunings/339234242822202 Recommended JavaScript Book: http://www.amazon.com/gp/product/0596805527/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596805527&linkCode=as2&tag=webtuningscom-20 Code snippets: https://github.com/webtunings
Views: 6151 WebTunings
innerHTML Property in Javascript  |  Hindi
 
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Javascript By Pankaj Panjwani. YCT Academy : http://www.yctacademy.blogspot.com YCT Academy is the Best Webdesigning Training Institute in Bhopal.
Views: 944 Pankaj Panjwani
Uncaught TypeError: Cannot read property 'height' of null
 
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https://issues.apache.org/jira/browse/DISPATCH-748
Views: 2082 Jiri Danek
JavaScript runtime error Unable to get property checked of undefined or null reference
 
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JavaScript - fix the following error 0x800a138f - JavaScript runtime error: Unable to get property 'checked' of undefined or null reference http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/03/javascript-fix-following-error.html
Views: 7487 Vis Dotnet
JavaScript – The innerHTML Property
 
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This video is a sample from Skillsoft's video course catalog. In JavaScript, you can use the innerHTML property to manipulate web pages. In this video, Jamie Campbell demonstrates how to change elements using innerHTML in JavaScript. With almost 25 years as an IT consultant, marketing communications expert, and professional writer, Jamie Campbell is a technology enthusiast with a passion for gadgets and a flair for problem solving. He’s worked in the IT, publishing, and automotive industries, and he’s also an accomplished graphic designer. In addition, he’s been a technology instructor at prestigious design and technology colleges. He writes for a tech blog and has authored and published four novels. Skillsoft is a pioneer in the field of learning with a long history of innovation. Skillsoft provides cloud-based learning solutions for our customers worldwide, who range from global enterprises, government and education customers to mid-sized and small businesses. Learn more at http://www.skillsoft.com. https://www.linkedin.com/company/skillsoft http://www.twitter.com/skillsoft https://www.facebook.com/skillsoft
Views: 2264 Skillsoft YouTube
MVC - Fix Error - Unable to set property 'unobtrusive' of undefined or null reference with comments
 
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JavaScript runtime error: Unable to set property 'unobtrusive' of undefined or null reference more info http://howtodomssqlcsharpexcelaccess.blogspot.ca/2017/10/mvc-fix-error-javascript-runtime-error.html
Views: 726 Vis Dotnet
Solve JavaScript   " Undefined " or " Not Define " Error with in 2 Minutes
 
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Difference Between JavaScript Function and Variable see on Console Undefined or Not Define function throught the Variable or Funcation
Views: 989 manoj sharma
12 Undefined and referenceError   - JavaScript Tutorial 2018
 
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Full #Javascript #tutorial for #beginners : http://bizanosa.com/js Learn HTML, CSS and JavaScript http://bizanosa.com/sp/learn-html-css-javascript/ JavaScript Tutorial 2018 12 Undefined and referenceError - JavaScript for Beginners. This is a Javascript tutorial from scratch for any beginner. Use the above link to watch the full JS video tutorial.. Next Video: https://youtu.be/d-wlzviLxes Previous Video: https://youtu.be/Y25cVYyiG4k Hey, and welcome back. So an undefined variable is one whereby you have the variable, you have declared the variable, but you haven't given it a value. You have not initialized the value of the variable. And then, a reference error, this is just calling for a variable that does not exist. So let's take a look at some examples with the ‘var’ keyword and the ‘let’ keyword. So if I come back to Firefox, I will open Scratchpad and you can open Scratchpad by Shift+F4 on your keyboard. So the first thing I want to do, let me declare a variable, variable ‘x’ and then alert the value of ‘x’. So this, let me just run it and you will see what it will tell me. So if I run this, you see it gives a value of ‘undefined’. So we have the variable, it has been declared but we have not initialized the value. So the next thing again or in this case you can see that the variable was declared first before we tried to use it. So let me try to use the variable before declaring the value, before declaring the variable. So if I run this, it'll give us undefined. So what's happening here is something called Variable Hoisting. So in JavaScript a variable will get hoisted the same way you will hoist a flag. That's basically raising it to the top. So it’ll get hoisted. We’re going to cover hoisting later on. So just keep that in mind. So if I undo this and now let's look at ‘reference error’. Now a reference error we said, trying to call a variable that does not exist. So if I, if I tried to call ‘y’, alert(y) and run this, you’ll see we’ll get this error. So we get an ‘Exception: ReferenceError’. So if you try to access a variable that does not exist, a variable that has not been defined yet, you’ll get a reference error. And now I want to use ‘let’. So let me see if I use let x; and then alert(x); what will happen. So if I run this, it'll give us a syntax error. Okay, this is the same thing we experience before. So let me use a different variable. Let me use ‘z’ and then alert(z). And then we run this, it'll give us ‘undefined’. So you remember in the other video, in the other example just before this, we were able to put alert before ‘let’ and we got, we got a value of ‘undefined’. What happens if we try to do the same with a variable that has been declared with ‘let’. So if you try to run this, it'll give you, okay let me use a different variable first of all. Let me say ‘a’, ‘a’. So alert(a); and then we try to declare ‘a’ with ‘let’ before we try to call it. So if I run this, it gives us a reference error unlike for ‘var’. If you were to use ‘var’, if you were to use ‘var’ here, this variable would get hoisted to the top. So if you don't want your variables to get hoisted, you will use the ‘let’ keyword. So to hoist, basically we’ll define this variable at the top of the code. All variables that are declared with ‘var’ or without the ‘var’ keyword, they’re always elevated to the top. So that’s what’s happening, what's happening in here. If you use ‘let’, it will not be elevated to the top. We’re going to cover variable hosting later on. So in this video, we've taken a look at ‘undefined’ and ‘reference error’ whereby, ‘undefined’ basically means the variable is there, yes. It has been defined but it has not been, it has not been given an initialization. It has not been given a value. And then for reference error, that’s a variable that does not exist and if you try to call it, it cannot be found in the system, in the memory. So let's continue in the next video. GET SOCIAL WITH ME: FACEBOOK: https://www.facebook.com/rwahowa/ INSTAGRAM: https://www.instagram.com/rwahowa/ TWITTER: https://twitter.com/rwahowa/ VIMEO: https://vimeo.com/bizanosa/ WEBSITE : http://rwahowa.com
Views: 622 Ricky Wahowa
Learn JavaScript Episode #11: Setting an Elements innerHTML
 
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Get The Learn to Code Course Bundle! https://josephdelgadillo.com/product/learn-to-code-course-bundle/ Subscribe: https://www.youtube.com/c/JosephDelgadillo?&sub_confirmation=1 In the 11th video of this series, we will be covering how to set the innerHTML of an element. This will be a quick tutorial.
Views: 1220 Joseph Delgadillo
.NET - How to fix error Message 'Sys WebForms PageRequestManager' is null or not an object
 
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Example that shows how to fix error Error message: Message 'Sys.WebForms.PageRequestManager' is null or not an object or 0x800a138f - JavaScript runtime error: Unable to get property 'PageRequestManager' of undefined or null reference More info with ready to copy and paste code: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2014/05/net-how-to-fix-error-message.html
Views: 3193 Vis Dotnet
addeventlistener and removeeventlistener in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/addeventlistener-and.html In this video we will discuss assigning event handlers in JavaScript using the following special methods addEventListener removeEventListener attachEvent detachEvent Internet Explorer 9 (and later versions) & all the other modern browsers support addEventListener() and removeEventListener() methods. Sytnax for assigning event handler using addEventListener() method element.addEventListener(event, handler, phase) Sytnax for removing event handler using removeEventListener() method element.removeEventListener(event, handler, phase) Please note : The third parameter phase is usually set to false as it is not used. Example : In this example, we are passing values for all the 3 parameters including phase. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.addEventListener("mouseover", changeColorOnMouseOver, false); btn.addEventListener("mouseout", changeColorOnMouseOut, false); function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } [/script] Since the third parameter "phase" is optional you can omit it if you wish. btn.addEventListener("mouseover", changeColorOnMouseOver); btn.addEventListener("mouseout", changeColorOnMouseOut); Example : This example demonstrates removing event handlers. [input type="button" value="Click me" id="btn"/] [input type="button" value="Remove Event Handlers" onclick="removeEventHandlers()" /] [script type="text/javascript"] btn.addEventListener("mouseover", changeColorOnMouseOver); btn.addEventListener("mouseout", changeColorOnMouseOut); function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } function removeEventHandlers() { btn.removeEventListener("mouseover", changeColorOnMouseOver); btn.removeEventListener("mouseout", changeColorOnMouseOut); } [/script] Using this approach you can assign more than one event handler method to a given event. The order in which handler methods are executed is not defined. In this example, 2 event handler methods (clickHandler1 & clickHandler3) are assigned to click event of the button control. When you click the button both the handler methods are executed. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.addEventListener("click", clickHandler1); btn.addEventListener("click", clickHandler2); function clickHandler1() { alert("Handler 1"); } function clickHandler2() { alert("Handler 2"); } [/script] attachEvent() and detachEvent() methods only work in Internet Explorer 8 and earlier versions. Sytnax for assigning event handler using attachEvent() method element.attachEvent( "on"+event, handler) Sytnax for removing event handler using detachEvent() method element.detachEvent( "on"+event, handler) Example : This example will only work in Internet Explorer 8 and earlier versions. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.attachEvent("onclick", clickEventHandler); function clickEventHandler() { alert("Click Handler"); } [/script] Cross browser solution : For the above example to work in all browsers, modify the script as shown below. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] if (btn.addEventListener) { btn.addEventListener("click", clickEventHandler); } else { btn.attachEvent("onclick", clickEventHandler); } function clickEventHandler() { alert("Click Handler"); } [/script]
Views: 42202 kudvenkat
MVC - Fix Error -  JavaScript runtime error Unable to set property unobtrusive
 
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JavaScript runtime error: Unable to set property 'unobtrusive' of undefined or null reference Load proper java script More info http://howtodomssqlcsharpexcelaccess.blogspot.ca/2018/03/mvc-fix-error-javascript-runtime-error.html
Views: 209 Vis Dotnet
How to Check Null Value in JavaScript
 
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How to Check Null Value in JavaScript For more articles go to http://www.dexblog.net
Views: 691 dexblog.net
ASP NET control client id in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/03/aspnet-control-client-id-in-javascript.html In this video we will discuss when to use ASP.NET control's ClientID instead of ID in JavaScript. Every ASP.NET server side control has ID property. At runtime the ID property is converted to id attribute and the resulting HTML is sent to the client browser. For example, we have an ASP.NET TextBox control with ID="TextBox1" on the page. [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] When the webform is rendered, it would produce the following HTML [input name="TextBox1" type="text" id="TextBox1" /] Notice that the id attribute value in the generated HTML is same as the ID property value. An aspx page with the following HTML and JavaScript works as expected. When the page is rendered keyboard focus is set to TextBox1 control. [asp:TextBox ID="TextBox1" runat="server"] [/asp:TextBox] [script type="text/javascript"] document.getElementById('TextBox1').focus(); [/script] What if you have a master page In realworld, most asp.net web applications have master pages. If you have a master page and if the control is present inside a content control, the generated ID attribute value of the control will be different from ID property value 1. Add a master page to your project. Name it MyMaster.master. 2. Right click on the master page, and select "Add Content Page" from the context menu. 3. In the content page you just added, copy and paste the following HTML and JavaScript in content control with ID="Content2" [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [script type="text/javascript"] document.getElementById('TextBox1').focus(); [/script] When you view the content page in the browser, you will get the following JavaScript error Error: Unable to get property 'focus' of undefined or null reference Why is the JavaScript code not able to find textbox with id="TextBox1" This is because at runtime, ASP.NET has generated a different id attribute value. To see the generated id attribute value, view the page source in the browser. [input name="ctl00$ContentPlaceHolder1$TextBox1" type="text" id="ContentPlaceHolder1_TextBox1" /] [script type="text/javascript"] document.getElementById('TextBox1').focus(); [/script] If the asp.net control is present inside another container control, the generated id attribute value will be different. Here are a few examples of container controls Content control UserControl GridView There are several ways we can make this work 1. Use the computed id attribute value in the script as shown below. The downside of this approach is that, if someone changes the ContentPlaceHolder ID in the master page, your script will break again. [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [script type="text/javascript"] document.getElementById('ContentPlaceHolder1_TextBox1').focus(); [/script] 2. Set ClientIDMode="Static" on the TextBox control. This will ensure that the generated id attribute value matches the server side ID property. With this approach you will have to make sure that no other control on the web page has the same ID. [asp:TextBox ID="TextBox1" ClientIDMode="Static" runat="server"] [/asp:TextBox] [script type="text/javascript"] document.getElementById('TextBox1').focus(); [/script] 3. Use ClientID property of the server control in your script. [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [script type="text/javascript"] document.getElementById('[%=TextBox1.ClientID%]').focus(); [/script] What if the TextBox is present in the MasterPage If the TextBox is present in the MasterPage and not in the Content page, then the generated ID attribute value of the control will be the same as ID property. So in this case you can use document.getElementById('TextBox1') Summary : If the ASP.NET control is not present inside any other container control, then the generated ID attribute value of the control will be the same as ID property. So in this case you can use document.getElementById('TextBox1') If the ASP.NET control is present inside any other container control, then the generated ID attribute value of the control will be different from ID property value. So in this case you have to use document.getElementById('[%=TextBox1.ClientID%]')
Views: 14655 kudvenkat
Ошибка в VK и её решение (JavaScript error: Cannot read property 'addEventListener' of undefined
 
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JavaScript error: Cannot read property 'addEventListener' of undefined - это распространённая ошибка она появилась после нового обновления vk ну следствия какогото сбоя но решить её стало легко просто в расширениях отключите все и попробуйте в вк написать сообщение и попробуйте методом исключения найти то расширение с которым пишет такую ошибку Саундтрэк:Keys-N-Krates-Dum-Dee-Dum(muzofon.com)
Views: 132701 SuperBoyZ
Differece between Null and Undefined in Javascript
 
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Differece between Null and Undefined in Javascript Undefined in Javascript Null in Javascript
Views: 522 Teach Me Tech
[C#] Null Reference & Reference Types in C# | Plus Nullable Data Types  & The NullReferenceException
 
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Today you'll learn all about the Null literal and Null reference in C# We'll take a look at what a reference type is and find out what references are exactly. This is the standard Microsoft docs definition Ace. We also have a brief look at the differences between reference types and value types Then I'll explain what the 'null' literal is and discuss the 'null' reference. This features a look at the Null Reference Exception (NullReferenceException), an error you will see throughout your programming life Ace After that we'll see what a 'null-coalescing operator' (??) is. This is similar to the ternary operators we have seen before Ace, and I'll give you a quick explanation of them And finally we'll touch upon Nullable types. Here I'll give you the Microsoft docs explanation and show you examples with the 'int?' type. The Nullable type uses generics Ace, but we won't be covering those in this video. I'll also show you the 'HasValue' and 'Value' property of the type, and I'll also show you the “InvalidOperationException: Nullable object must have a value”. As always Ace, I want to thank you so much for your continued support, with your comments, ratings and subscriptions. It really means a lot to me and keeps me motivated to create these videos for you. Enjoy :) [ Info ] Email ~ [email protected] Music ~ [Lensko - Heaven] https://www.youtube.com/watch?v=T3iSD8L0MUo Subscribe ~ http://www.youtube.com/channel/UC1Ff3gOuY3FiijhhjFZmKAw?sub_confirmation=1 Share Video ~ https://youtu.be/Eg0FMAnMiT0 Channel Files Git ~ https://gitlab.com/RetroTK2/Channel-Files.git Channel Files ~ https://gitlab.com/RetroTK2/Channel-Files/repository/archive.zip?ref=Channel
Views: 4278 RetroTK2
C# Beginner to advanced - Lesson 68 - Nullable Types
 
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Nullable Types in C#: In C# Data types are divided in to 2 categories : Value types : includes int, float, double, enums etc.. Reference types : Interface, Class, String, arrays, Delegate etc. By default : Value types: are non Nullable. Reference types: are Nullable. How to make value types Nullable : Example : int i = 0 ; // default value in value types is zero. i is non Nullable . i cannot be set to null i = null ; // will generate a compile time error To make value type Nullable , we have to use “?”. int? j = 0 ; // now j can be nullable int. j = null ; // this works now. ankpro ankpro training Asp.net MVC C# C sharp Bangalore Rajajinagar Selenium Coded UI Mobile automation testing Mobile testing JQuery JavaScript .Net Components of the .Net framework Hello World Literal Keywords Variable Data types Operators Branching Loops Arrays ArrayList Strings String Builder Structures Enums Functions Classes Inheritance Polymorphism Properties Indexers Events Nested Classes Delegates Anonymous methods Labda expressions Abstract classes Exception Handling Linq Interfaces Extension methods Anonymous types Generics Collections Garbage Collection Reflection Attributes Input and output statements Type casting Partial Methods Partial Classes Boxing and Unboxing Var vs Dynamic vs Object using Static. Auto property initializer. Dictionary Initializer. nameof Expression. New way for Exception filters. await in catch and finally block. Null – Conditional Operator. Expression – Bodied Methods Easily format strings – String interpolation Parameterless constructors in structs. Creating a custom exceptions class.
Views: 1496 Ankpro Training
Fix Error   0x800a138b   JavaScript runtime error Cannot assign to a function result
 
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More info with ready to copy/paste code http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/10/jquery-fix-following-error-0x800a138b.html
Views: 119 Vis Dotnet
JavaScript - 0x800a01b6   JavaScript runtime error Object doesn't support property or method checked
 
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More info with ready to copy/paste code http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/11/watch-this-on-youtube-0x800a01b6.html
Views: 1028 Vis Dotnet
How to Parse JSON with Java (using Jackson and JSONGen)
 
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How to use JSONGen to create a simple class (POJO / Java Bean) from JSON and then parse JSON matching that class. Updated documentation: https://github.com/coolaj86/json-examples/tree/master/java/jackson Errata: * By "sub-class" I mean "inner-class" * By default jackson throw errors on normal json the fix is to call `mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);`
Views: 64632 AJ ONeal
Fix the following error - Uncaught ReferenceError auto is not defined
 
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Uncaught ReferenceError: auto is not defined more info http://howtodomssqlcsharpexcelaccess.blogspot.ca/2017/02/fix-error-uncaught-referenceerror-auto.html
Views: 4519 Vis Dotnet
Convert JSON string to  net object
 
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Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/04/convert-json-string-to-net-object.html In this video we will discuss 1. How to convert .NET object to JSON string 2. How to convert a JSON string to .NET object We will be using the following Employee class public class Employee { public string firstName { get; set; } public string lastName { get; set; } public string gender { get; set; } public int salary { get; set; } } Replace < with LESSTHAN symbol and > with GREATERTHAN symbol The following example converts List<Employee> objects to a JSON string. Serialize() method of JavaScriptSerializer class converts a .NET object to a JSON string. JavaScriptSerializer class is present in System.Web.Script.Serialization namespace. using System; using System.Collections.Generic; using System.Web.Script.Serialization; namespace Demo { public partial class WebForm1 : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Employee employee1 = new Employee { firstName = "Todd", lastName = "Grover", gender = "Male", salary = 50000 }; Employee employee2 = new Employee { firstName = "Sara", lastName = "Baker", gender = "Female", salary = 40000 }; List<Employee> listEmployee = new List<Employee>(); listEmployee.Add(employee1); listEmployee.Add(employee2); JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer(); string JSONString = javaScriptSerializer.Serialize(listEmployee); Response.Write(JSONString); } } } Output : [{"firstName":"Todd","lastName":"Grover","gender":"Male","salary":50000},{"firstName":"Sara","lastName":"Baker","gender":"Female","salary":40000}] The following example converts a JSON string to List<Employee> objects. Deserialize() method of JavaScriptSerializer class converts a JSON string to List<Employee> objects. string jsonString = "[{\"firstName\":\"Todd\",\"lastName\":\"Grover\",\"gender\":\"Male\",\"salary\":50000},{\"firstName\":\"Sara\",\"lastName\":\"Baker\",\"gender\":\"Female\",\"salary\":40000}]"; JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer(); List<Employee> employees = (List<Employee>)javaScriptSerializer.Deserialize(jsonString, typeof(List<Employee>)); foreach(Employee employee in employees) { Response.Write("First Name = " + employee.firstName + "<br/>"); Response.Write("Last Name = " + employee.lastName + "<br/>"); Response.Write("Gender = " + employee.gender + "<br/>"); Response.Write("Salary = " + employee.salary + "<br/><br/>"); }
Views: 101481 kudvenkat
Javascript setAttribute removeAttribute Methods Tutorial
 
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Script: http://www.developphp.com/video/JavaScript/setAttribute-removeAttribute-Methods-Tutorial Learn to apply the setAttribute and removeAttribute methods of Javascript. Since Javascript has become a necessary running component of the web and HTML5 relies heavily upon it we can lean on it more and more to reduce our HTML markup cosiderably much the same way we ruduce our HTML markup by separating out the CSS styling from it. There are also times when in mid flow while a user is using your application, you may have to set or remove an HTML attribute from a tag at runtime. Which makes this a necessary set of methods for Javascript application authors to know. This tutorial is for people that have a good understanding and working knowledge of HTML attributes, and they wish to enhance their Javascript skills in regards to HTML5 dynamic attribute handling. THis also applies to HTML4 attributes. If you are not aware of all of the HTML and HTML5 attributes, web search a list of them.
Views: 14626 Adam Khoury
Gson Tutorial — Getting Started with Java-JSON Serialization & Deserialization
 
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In this video you'll get started with Gson. Gson is a library to (de)serialize JSON from and to Java objects: ►Introduction: [0:07] ►Gson Setup: [1:15] ►JSON Basics: [1:57] ►Serialization (from Java object to JSON): [4:21] ►Deserialization (from JSON to Java object): [6:52] ►Summary: [8:54] Tip: turn on subtitles to deal with my accent. A shortened transcript is also available below. Find the tutorial for an easy read here: ►https://futurestud.io/tutorials/gson-getting-started-with-java-json-serialization-deserialization Watch all of our Gson tutorials in a playlist: ►https://www.youtube.com/playlist?list=PLpUMhvC6l7AOy4UEORSutzFus98n-Es_l See Gson in action in our Retrofit video series: ►https://www.youtube.com/playlist?list=PLpUMhvC6l7APq7y_FFfK-GEHvcUKqo6SC ---------------------------------------- Our book on Gson is also available on leanpub: ►https://leanpub.com/gson-enjoy-json-deserialization-in-java ---------------------------------------- Future Studio is helping 5,000+ users daily to solve Android and Node.js problems with 320+ written tutorials and videos. We’re on a mission to provide new in-depth content every week. Checkout 320+ technical in-depth tutorials: ►https://futurestud.io Subscribe for two new videos every week: ►https://www.youtube.com/c/FutureStudio?sub_confirmation=1 ---------------------------------------- Follow us on social media to get updates on new content: ►https://twitter.com/futurestud_io ►https://www.facebook.com/FutureStudioUniversity ►https://plus.google.com/+FutureStudioUniversity ---------------------------------------- Shortened Transcript: Gson is a powerful library to map automatically from Java objects to JSON and from JSON to Java objects. With a single line of code you can these transformations without worrying about the exact details or changes in the data models. Gson does everything for you. Gson works either on Android or any Java project. The example project we're going to work in will always be in Java, but it doesn't mean you can't use on Android. It works on both platforms the same way. Here we have our Java example project. I've also already added the gradle dependency here. If you want to use Gson in your project you just simply add this line to your gradle build. The UserSimple class has four properties. It has two strings: the name and the email. It has an integer value: the age, so in sense of 27, and it has a boolean value isDeveloper, which is true or false. For everyone who didn't work with JSON before, let's create a quick JSON object, which is appropriate for this class. JSON objects are alway indicated by the curly brackets {}. This would be an appropriate JSON representation of one of these objects. When we want to transform from a Java object, we need to have that Java objects. Let's use the same value we've just used before: Norman, my email, 27, and true. How do we create a JSON out of this [Java] object? We need a Gson instance. What we can now call on this Gson instance is toJson(). The parameter for the toJson() is simply the object we've just created. If you make this to a String we've this JSON object here. Actually it's a String object, which contains a JSON. We have a JSON result. As you can see we've added whitespaces and line breaks to make it look a little nicer, so we humans can read it. Gson actually, by default, makes it as small as possible. So no whitespaces, no line breaks. If you format this the same way, you'll see it's the exact same result. The values are the same, the property keys are the same, everything is identical. That with just one line of code, fantastic! Let's do the other direction, when we have a JSON and want to make Java objects out of it. This process is called deserialization. The process is fairly similar. We take a Gson instance and on the Gson instance, we call fromJson(). We can pass a string so we'll just pass the userJson string. Here we have a second parameter. As you can see when you look at the JSON objects they're as minimal as possible by just stating the values. You need to know what kind of object is incoming. Here we would say this is of the type UserSimple.class. Now Gson can tell, you have this incoming JSON and we're going to map it to this UserSimple class and can set the properties correctly. Let's make a user object out of and run the same thing. What we would expect that the email, the [is]Developer, the name are all the same, but the age is 26 now. As you can see everything worked, we've the name correctly, we've the email correctly, the age is 26 because the JSON says 26, and we have the isDeveloper, which is true. What you've seen in this short example is how you can use Gson to transform automatically from JSON to Java objects and the other way around. Obviously, there is a lot more to explore. In the next video, we'll look at how you can map nested objects with Gson.
Views: 26082 Future Studio
C# Tutorial 23: How to use DateTimePicker and save date in Database
 
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Visual C# .NET Controls The Date Time Picker - Date Picker C# - How do I set my datetimepicker date? visual C# - DateTimePicker date to string C# How to compare the time of a DateTimePicker control and the How do I get value from Date time picker and Month calendar C# How to pass values to a dateTimePicker control‎ C# How to change DateTimePicker control to 24h time format ? Getting started with the DateTimePicker Visual Studio 2012 RC - Age calculation from Converting date time picker value into t_time type date time picker‎ - 7 posts DateTimePicker - Visual C# assign SYSTEMTIME to DateTimePicker Control‎ C#
Views: 310440 ProgrammingKnowledge
JavaScript   0x800a138f   JavaScript runtime error Unable to get property checked of undefined or nu
 
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fix the following error: Fix error - 0x800a138f - JavaScript runtime error: Unable to get property 'checked' of undefined or null reference http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/02/fix-error-0x800a138f-javascript-runtime.html
Views: 940 Vis Dotnet
How To Get HTML Table Row And Cell Index Using Javascript [ with Source code ]
 
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HTML Table Row And Cell Index In Js Source Code: http://1bestcsharp.blogspot.com/2017/03/javascript-html-table-row-and-cell-index.html Javascript Tutorials For Beginners ➜ http://bit.ly/2k7NMWq Javascript Course ➜ http://bit.ly/2IvBCFC visit our blog https://1bestcsharp.blogspot.com/ subscribe: http://goo.gl/nRjPKk In This Javascript Tutorial we will see How To Get HTML Table Row Index And Cell Index Using rowIndex, cellIndex Property Using JS In Netbeans Editor . Javascript Tutorials : How to get value of selected radio button https://www.youtube.com/watch?v=uzwUBDQfpkU How to append Value to an array https://www.youtube.com/watch?v=KVdY8n6lCy4 javascript images slider 1 https://www.youtube.com/watch?v=QkcemPr4xaU Convert String To Number https://www.youtube.com/watch?v=JMfZG7o_QtE JavaScript Show And Hide Input Password Text https://www.youtube.com/watch?v=Cmo9sjx5eFE change div class name in js https://www.youtube.com/watch?v=X_SDJxKI6HE using checkbox with js https://www.youtube.com/watch?v=yFYEHSh2iTQ get And Set Value To An Input https://www.youtube.com/watch?v=AfRHl3soLDg calculate two numbers https://www.youtube.com/watch?v=oDUjP4N_MtQ Search Element In Array https://www.youtube.com/watch?v=LIsjSMr9bJU Add Search Remove Array Element https://www.youtube.com/watch?v=ppLbuVWf6zM Add HTML Table Row https://www.youtube.com/watch?v=FVSfp8yT8lA Get Mouse Position https://www.youtube.com/watch?v=LVi5DN2vtdo Show Text Letter By Letter https://www.youtube.com/watch?v=dbdYazO4IZ4
Views: 12493 1BestCsharp blog
1.3: Getting Text form User: Text Input - Programming with Text
 
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In this video, I demonstrate how you can get text input from a user with DOM elements ("input" and "textarea" in combination with the p5.dom.js library. Next Video: https://youtu.be/0Mq2CxspF5s Introduction to Programming from A to Z: http://shiffman.net/a2z/intro/ Support this channel on Patreon: https://patreon.com/codingtrain Send me your questions and coding challenges!: https://github.com/CodingTrain/Rainbow-Topics Contact: https://twitter.com/shiffman GitHub Repo with all the info for Programming from A to Z: https://github.com/shiffman/A2Z-F16 Source Code for the all Video Lessons: https://github.com/CodingTrain/Rainbow-Code p5.js: https://p5js.org/ Processing: https://processing.org createInput() reference: https://p5js.org/reference/#/p5/createInput Drag and Drop with p5.js video: https://www.youtube.com/watch?v=o4UmGrPst_c For More Programming from A to Z videos: https://www.youtube.com/user/shiffman/playlists?shelf_id=11&view=50&sort=dd For More Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH Help us caption & translate this video! http://amara.org/v/V9bp/
Views: 50057 The Coding Train
Harlem Shake - Facebook
 
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To do this: 1. Here it is: 1. Go to Google Chrome 2. Go to any website 3. Right click anywhere -- Inspect Element -- Console (it will appear on the top) 4. Copy paste the following javascript: javascript:(function(){function c(){var e=document.createElement("link");e.setAttribute("type","text/css");e.setAttribute("rel","stylesheet");e.setAttribute("href",f);e.setAttribute("class",l);document.body.appendChild(e)}function h(){var e=document.getElementsByClassName(l);for(var t=0;t-e.length;t++){document.body.removeChild(e[t])}}function p(){var e=document.createElement("div");e.setAttribute("class",a);document.body.appendChild(e);setTimeout(function(){document.body.removeChild(e)},100)}function d(e){return{height:e.offsetHeight,width:e.offsetWidth}}function v(i){var s=d(i);return s.height-e&&s.height-n&&s.width-t&&s.width-r}function m(e){var t=e;var n=0;while(!!t){n+=t.offsetTop;t=t.offsetParent}return n}function g(){var e=document.documentElement;if(!!window.innerWidth){return window.innerHeight}else if(e&&!isNaN(e.clientHeight)){return e.clientHeight}return 0}function y(){if(window.pageYOffset){return window.pageYOffset}return Math.max(document.documentElement.scrollTop,document.body.scrollTop)}function E(e){var t=m(e);return t-=w&&t-=b+w}function S(){var e=document.createElement("audio");e.setAttribute("class",l);e.src=i;e.loop=false;e.addEventListener("canplay",function(){setTimeout(function(){x(k)},500);setTimeout(function(){N();p();for(var e=0;e-O.length;e++){T(O[e])}},15500)},true);e.addEventListener("ended",function(){N();h()},true);e.innerHTML=" -p-If you are reading this, it is because your browser does not support the audio element. We recommend that you get a new browser.-/p- -p-";document.body.appendChild(e);e.play()}function x(e){e.className+=" "+s+" "+o}function T(e){e.className+=" "+s+" "+u[Math.floor(Math.random()*u.length)]}function N(){var e=document.getElementsByClassName(s);var t=new RegExp("\\b"+s+"\\b");for(var n=0;n-e.length;){e[n].className=e[n].className.replace(t,"")}}var e=30;var t=30;var n=350;var r=350;var i="//s3.amazonaws.com/moovweb-marketing/playground/harlem-shake.mp3";var s="mw-harlem_shake_me";var o="im_first";var u=["im_drunk","im_baked","im_trippin","im_blown"];var a="mw-strobe_light";var f="//s3.amazonaws.com/moovweb-marketing/playground/harlem-shake-style.css";var l="mw_added_css";var b=g();var w=y();var C=document.getElementsByTagName("*");var k=null;for(var L=0;L-C.length;L++){var A=C[L];if(v(A)){if(E(A)){k=A;break}}}if(A===null){console.warn("Could not find a node of the right size. Please try a different page.");return}c();S();var O=[];for(var L=0;L-C.length;L++){var A=C[L];if(v(A)){O.push(A)}}})() 4. Press Enter 5. Enjoy
Views: 133 Nicky Camilleri
C# 7 Chapter 2: Binary literals
 
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Binary Literals : Constants refer to fixed values that the program cannot alter during its execution. These fixed values are also called literals. Constants can be of any of the basic data types like an integer constant, a floating constant, a character constant, or a string literal. The constants are treated just like regular variables except that their values cannot be modified after their declaration. We have character literal, string literal, integer literal, floating-point literal , hexa-decimal literals, character constants etc Key Points : There’s no new data type added to represent a binary value. Binary number is prefixed with ‘0b’. Also they can be prefixed with ‘0B’. If we were really working with binary values like a byte, there are 8 bits in a byte, and the largest number might be: An int. Just dressed up to look like a binary. Since it’s an int, you can add or perform other math operations on them ankpro ankpro training Asp.net MVC C# C sharp Bangalore Rajajinagar Selenium Coded UI Mobile automation testing Mobile testing JQuery JavaScript .Net Components of the .Net framework Hello World Literal Keywords Variable Data types Operators Branching Loops Arrays ArrayList Strings String Builder Structures Enums Functions Classes Inheritance Polymorphism Properties Indexers Events Nested Classes Delegates Anonymous methods Labda expressions Abstract classes Exception Handling Linq Interfaces Extension methods Anonymous types Generics Collections Garbage Collection Reflection Attributes Input and output statements Type casting Partial Methods Partial Classes Boxing and Unboxing Var vs Dynamic vs Object using Static. Auto property initializer. Dictionary Initializer. nameof Expression. New way for Exception filters. await in catch and finally block. Null – Conditional Operator. Expression – Bodied Methods Easily format strings – String interpolation Parameterless constructors in structs. Creating a custom exceptions class. Destruction Out variables Tuples Pattern Matching Throw expressions Local Functions Binary Literals and Digit Separators Ref locals and returns Expression-bodied
Views: 398 Ankpro Training
JavaScript runtime error Unable to get property TextBox1 of
 
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How to fix the following error: JavaScript runtime error: Unable to get property 'TextBox1' of undefined or null reference More info with ready to copy and paste code: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/01/javascript-runtime-error-unable-to-get.html
Views: 254 Vis Dotnet
Adding JavaScript to ASP NET controls
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/02/adding-javascript-to-aspnet-controls.html In this video we will discuss different options available to add JavaScript to ASP.NET server controls. Adding JavaScript to ImageButton in ASP.NET : Adding JavaScript to ASP.NET server control declaratively : Copy and paste the following HTML in WebForm1.aspx. In this example we are declaratively adding the JavaScript that we want to execute in response to onmouseover and onmouseout events. onmouseover and onmouseout attributes does not correspond to any of the ImageButton control properties, so they will be passed through to the browser as is. [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png" onmouseover="this.src='/Images/greenButton.png'" onmouseout="this.src='/Images/blueButton.png'" /] The JavaScript that we want to execute in response to onmouseover and onmouseout events can also be present in separate JavaScript functions as shown below. [form id="form1" runat="server"] [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png" onmouseover="changeImageOnMouseOver();" onmouseout="changeImageOnMouseOut();" /] [script type="text/javascript"] function changeImageOnMouseOver() { document.getElementById("ImageButton1").src = "/Images/greenButton.png"; } function changeImageOnMouseOut() { document.getElementById("ImageButton1").src = "/Images/blueButton.png"; } [/script] [/form] Adding JavaScript to ASP.NET server control at runtime : ASPX : Notice that in the declarative markup we removed onmouseover and onmouseout attributes [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png"/] ASPX.CS : protected void Page_Load(object sender, EventArgs e) { ImageButton1.Attributes.Add("onmouseover", "this.src='/Images/greenButton.png'"); ImageButton1.Attributes.Add("onmouseout", "this.src='/Images/blueButton.png'"); } Adding JavaScript to ASP.NET Button onclick client event declaratively : With Button, LinkButton and ImageButton controls, OnClick attribute corresponds to server side click event. For this reason you cannot use OnClick attribute to add JavaScript that you want to execute in response to client side click event. The following code throws an error. [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png" OnClick="return confirm('Are you sure you want to submit')"/] With Button, LinkButton and ImageButton controls to associate JavaScript that you want to execute in response to client side click event use OnClientClick attribute as shown below. [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png" OnClientClick="return confirm('Are you sure you want to submit')"/] Adding JavaScript to ASP.NET Button onclick client event at runtime : If you are adding JavaScript at runtime, then you will have to use onclick. ASPX : [asp:ImageButton ID="ImageButton1" runat="server" ImageUrl="/Images/blueButton.png"/] ASPX.CS protected void Page_Load(object sender, EventArgs e) { ImageButton1.Attributes.Add("onclick", "return confirm('Are you sure you want to submit');"); }
Views: 82389 kudvenkat
The Post JavaScript Apocalypse - Douglas Crockford
 
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This is about JavaScript, clutter, purity, and thoughts on what should be in the language that comes after, assuming that we all live that long. ConFoo: http://confoo.ca
Part 35   How to set an item selected when an asp net mvc dropdownlist is loaded
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2013/06/part-35-setting-item-selected-when.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-35-setting-item-selected-when.html All ASP .NET MVC Text Articles http://csharp-video-tutorials.blogspot.com/p/aspnet-mvc-tutorial-for-beginners.html All ASP .NET MVC Slides http://csharp-video-tutorials.blogspot.com/p/aspnet-mvc-slides.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss, how to set an item selected when an asp.net mvc dropdownlist options are loaded from a database table. Please watch Part 34 before proceeding. To have the "IT" department selected, when the departments are loaded from tblDepartment table, use the following overloaded constructor of "SelectList" class. Notice that we are passing a value of "1" for "selectedValue" parameter. ViewBag.Departments = new SelectList(db.Departments, "Id", "Name", "1"); If you run the application at this point, "IT" department will be selected, when the dropdownlist is rendered. The downside of hardcoding the "selectedValue" in code is that, application code needs to be modified, if we want "HR" department to be selected instead of "IT". Let's now discuss, the steps required to drive the selection of an item in the dropdownlist using a column in tblDepartment table. Step 1: Add "IsSelected" bit column to tblDepartment table ALTER TABLE tblDepartment ADD IsSelected BIT Step 2: At this point, this column will be null for all the rows in tblDepartment table. If we want IT department to be selected by default when the dropdownlist is loaded, set "IsSelected=1" for the "IT" department row. Update tblDepartment Set IsSelected = 1 Where Id = 2 Step 3: Refresh ADO.NET Entity Data Model Step 4: Finally, make the following changes to the "Index()" action method in "HomeController" class. public ActionResult Index() { SampleDBContext db = new SampleDBContext(); List[SelectListItem] selectListItems = new List[SelectListItem](); foreach (Department department in db.Departments) { SelectListItem selectListItem = new SelectListItem { Text = department.Name, Value = department.Id.ToString(), Selected = department.IsSelected.HasValue ? department.IsSelected.Value : false }; selectListItems.Add(selectListItem); } ViewBag.Departments = selectListItems; return View(); } Run the application and notice that, "IT" department is selected, when the dropdownlist is loaded. If you now want "HR" department to be selected, instead of "IT", set "IsSelected=1" for "HR" department and "IsSelected=0" for "IT" department. Update tblDepartment Set IsSelected = 1 Where Id = 2 Update tblDepartment Set IsSelected = 0 Where Id = 1
Views: 147689 kudvenkat
ReactJS / Redux Tutorial - #4 Working with State and Immutability
 
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Handling the State is a key Part of Redux. Learn how to handle it correctly and how work with immutable constructs. This video is Part of the ReactJS / Redux Basics Series. Join the full course: https://www.udemy.com/react-the-complete-guide-incl-redux/?couponCode=ACAD_YT Full Source Code available on GitHub (choose the right Branch): https://github.com/mschwarzmueller/reactjs-redux-basics Need ES6 Training? Watch my YouTube Video: https://www.youtube.com/watch?v=IEf1KAcK6A8 Or take my Udemy course for only $14: https://www.udemy.com/es6-bootcamp-next-generation-javascript/?couponCode=YOUTUBE_PROMOS Did you like it? Also have a look at Angular 2: https://www.youtube.com/watch?v=DBjPIabiRNg You can follow me on Twitter (@maxedapps), Facebook (https://www.facebook.com/academindchannel/) or visit our Website (https://www.academind.com).
Views: 52927 Academind
Crockford on JavaScript - Chapter 2: And Then There Was JavaScript
 
01:30:23
Yahoo!'s JavaScript architect Douglas Crockford surveys the features of the JavaScript programming language.
Views: 120348 YUI Library
Getting started with Firebase Auth on the Web - Firecasts
 
11:57
Authenticate users with Email and Password without a server using Firebase Authentication. Email and Password documenation: https://goo.gl/sHv6rK Google login documentation: https://goo.gl/zU0cXC Facebook login documentation: https://goo.gl/n0n6T7 Twitter login documentation: https://goo.gl/zmkNIO Github login documentation: https://goo.gl/RVFuOG Firebase Auth documentation: https://goo.gl/SsMn4X Add the Firecasts playlist! https://goo.gl/n2XqG1 Subscribe to the brand new Firebase Channel: https://goo.gl/9giPHG Music by http://terramonk.com
Views: 229516 Firebase
JavaScript Tic Tac Toe Project Tutorial  - Unbeatable AI w/ Minimax Algorithm
 
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A full web development tutorial for beginners that demonstrates how to create an unbeatable tic tac toe game using vanilla JavaScript, HTML, and CSS. Learn the Minimax algorithm! ⌨ Part 1: Introduction (0:00) Code: none ⌨ Part 2: HTML (2:58) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/2 ⌨ Part 3: CSS (4:23) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/3 ⌨ Part 4: JavaScript: Basic Setup (10:28) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/4 ⌨ Part 5: JavaScript: Determine Winner (20:32) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/5 ⌨ Part 6: JavaScript: Basic AI & Winner Box (30:45) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/6 ⌨ Part 7: JavaScript: Minimax Algorithm (39:25) Code: https://github.com/beaucarnes/fcc-project-tutorials/tree/master/tictactoe/7 --- Special thanks to David Daly and myloginistaken who found a mistake where the game sometimes incorrectly shows a tie game. The 'Part 7' GitHub code now contains this fix. 🔗Minimax article: https://medium.freecodecamp.org/how-to-make-your-tic-tac-toe-game-unbeatable-by-using-the-minimax-algorithm-9d690bad4b37 🐦 Beau Carnes on Twitter: https://twitter.com/carnesbeau --- Learn to code for free and get a developer job: https://www.freecodecamp.com Read hundreds of articles on technology: https://medium.freecodecamp.com And subscribe for new programming videos every day: https://youtube.com/subscription_center?add_user=freecodecamp
Views: 71941 freeCodeCamp.org
Node.js + Express - Tutorial - Insert and Get Data with MongoDB
 
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Part of a complete node.js series, including the usage of Express.js and much more! Let's leave the terminal window and write Node/Express code to insert data into our MongoDB as well as retrieve it and render it to the screen. Learn Node.js in our comprehensive 30h+ course: https://www.udemy.com/nodejs-the-complete-guide/?couponCode=AM_NDE_YT Complete source code: https://github.com/mschwarzmueller/nodejs-basics-tutorial Want to get some 1-on-1 coaching with experienced developers? Have a look at Savvy: https://www.savvy.is/?ref=9fee2b (Discount Code 9fee2b) You can follow me on Twitter (@maxedapps), Facebook (https://www.facebook.com/academindchannel/) or visit our Website (https://www.academind.com). See you in the videos!
Views: 151098 Academind
PowerApps SharePoint LookUp Column
 
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In this video, you will learn how to recreate the SharePoint LookUp column functionality that you want instead of using the mean SharePoint look up column that is built in. Lots of fun in this video. For PowerApps Consulting check out https://www.PowerApps911.com
Views: 17048 Shane Young
MVC -  Error - An object reference is required for the non static field,
 
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fix the following error An object reference is required for the non-static field, method, or property ' http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/02/mvc-fix-error-object-reference-is.html
Views: 2033 Vis Dotnet
Angular radio button checked by default
 
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In this video we will discuss 1. How to have a radio button checked by default 2. How to disable a radio button If you need the code samples used in the demo, you may copy them from our blog using the link below. http://csharp-video-tutorials.blogspot.com/2018/01/angular-radio-button-checked-by-default.html If we include checked attribute on a radio button, we expect that radio button to be checked by default when the form initially loads. But you will discover that is not the case. In the following example, we have included "checked" attribute on "Male" radio button, but when the form is displayed it is not checked. [input type="radio" name="gender" value="male" [(ngModel)]="gender" checked] However, if you remove the "ngModel" directive from the radio button, then it gets checked as expected. Notice the "ngModel" directive is removed from the radio button. [input type="radio" name="gender" value="male" checked] With Angular Template Driven forms, we use "ngModel" directive for two-way data binding. So the moment we put it back in place the "checked" attribute does not work. To make it work include "gender" property in the component class and initialise to the value of the radio button that you want to have checked by default. In our case, let us say, we want the "Male" radio button to be checked by default. To achieve this include "gender" property initialised to value of "male" in the component class as shown below. gender = 'male'; At this point you will have "Male" radio button checked by default when the form loads. Now, even if we remove the "checked" attribute from the "Male" radio button it is still checked by default when the form loads. This is because of the two-way data binding that we get with "ngModel" directive. For our form we do not want any radio button to be checked by default, so remove the "checked" attribute and the "gender" property from the component class. How to disable a radio button : To disable a radio button, use the disabled attribute on that radio button. "Male" radio button in this case will be disabled when the form initially loads. [input type="radio" name="gender" value="male" [(ngModel)]="gender" disabled] Another important point to keep in mind. By default, disabled form controls are not included in the Angular auto generated form model. Since, the "Male" radio button is disabled, the gender property will not be included in the Angular generated form model. In our form, we do not want any radio button to be disabled, so please remove the disabled attribute. In our next video, we will discuss working with CheckBox control in Angular Template Driven forms. Text version of the video http://csharp-video-tutorials.blogspot.com/2018/01/angular-radio-button-checked-by-default.html Slides http://csharp-video-tutorials.blogspot.com/2018/01/angular-radio-button-checked-by-default_2.html Angular CRUD Tutorial https://www.youtube.com/watch?v=rJ9o4TyhSuo&list=PL6n9fhu94yhWUcq5Pc16uf8YKXoZ87Vh_ Angular CRUD Tutorial Text Articles & Slides http://csharp-video-tutorials.blogspot.com/2017/12/angular-crud-tutorial.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 22340 kudvenkat
phpMyAdmin tutorial: Setting up a foreign key constraint | lynda.com
 
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In a relational database such as MySQL, foreign keys are used to link records in different tables. Additionally, you can set up foreign key constraints to control what happens when records are inserted, updated, or deleted. Find out how to build foreign key constraints in this tutorial. Watch more at http://www.lynda.com/phpMyAdmin-tutorials/Up-Running-phpMyAdmin/144202-2.html?utm_campaign=A42FG4LzdbY&utm_medium=viral&utm_source=youtube. This tutorial is a single movie from the Up and Running with phpMyAdmin course by lynda.com author David Powers. The complete course is 2 hours and 33 minutes and shows how to administer MySQL databases, design tables, and insert, update, and delete data with phpMyAdmin. Introduction 1. Why Use phpMyAdmin? 2. Setting Up phpMyAdmin Locally 3. Creating Tables 4. Importing and Exporting Data 5. Dealing with Foreign Keys 6. Running Queries 7. Checking Performance Conclusion
Views: 242646 LinkedIn Learning
Retrieving selected item text, value and index of an asp.net dropdownlist   Part 21
 
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C#, SQL Server, WCF, MVC and ASP .NET video tutorials for beginners http://www.youtube.com/user/kudvenkat/playlists In this video we will discuss about retrieving the selected item text, index and value from an asp.net dropdownlist. To retrieve Selected Item Text: DropDownList1.SelectedItem.Text Selected Item Value: DropDownList1.SelectedItem.Value OR Selected Item Value: DropDownList1.SelectedValue Selected Item Index: DropDownList1.SelectedIndex The SelectedIndex and SelectedValue properties of the DropDownList can also be used to have a list item selected in the DropDownList.
Views: 152739 kudvenkat
DYNAMICS 365 v9: Working with Multi-Select Option Sets
 
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Dynamics 365 v9 added a multi-select option set feature. In one of our previous webinars we had a lot of questions about how this actually works so I thought it would be a good idea to dig in really deep to get all of these questions answered. Table of Contents: 00:00 - Introduction 00:06 - New Feature Overview: Multi-Select OptionSets 00:22 - Mitch Milam 00:43 - Webinar Housekeeping 00:50 - Cyber Monday Sale Starts Today! 01:19 - Slide 6 01:22 - Definition 01:54 - Slide 8 01:57 - Data Entry 02:24 - Data Entry 02:39 - Editing Values 03:26 - Slide 12 03:28 - Views 03:41 - Views - Filtering 03:46 - Views - Sorting 03:51 - Views - Filtering 03:54 - Views - Sorting 04:03 - Views – Column Properties 04:13 - Editable Grid - Editing 04:27 - Editable Grid - Filtering 04:36 - Advanced Find – Equals (multi-select) 05:03 - Advanced Find – Contains Values 05:24 - Slide 21 05:25 - getControl().getText() 06:07 - getAttribute().getValue() 06:15 - getControl().getText() 06:18 - getAttribute().getValue() 06:54 - Slide 24 06:55 - C#: Setting a Value 07:33 - C# Query 07:48 - WebAPI Query 08:12 - WebAPI Results
Views: 2207 xRMCoaches

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