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Search results “Cannot set property value of null in javascript”
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: 7067 A. Hasbiyatmoko
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: 326 its an error
#java script Electron Cannot read property 'addEventListener' of null
 
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How to fix java script Electron Cannot read property 'addEventListener' of null
Views: 381 Azania Tutorials
ANGULAR 7 TypeError Cannot read property of undefined
 
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In this tutorial, we will see a most common error faced by the Angular developers named as "TypeError Cannot read property of undefined". So we will see how to solve this error using : 1. Elvis Operator 2. Logical AND(&&) Operator 3. Helper function
Views: 2593 Techie Ocean
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: 9131 Vis Dotnet
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: 1081 Vis Dotnet
How to Solve Javascript Cross Domain
 
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Alternative Solution: quick and easy: https://youtu.be/3EWrbFfedrA In this video I show you How to Solve Javascript Cross Domain issue. I give two solutions. One to use while in development stage and one for your server. Solves this error: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Views: 51067 LearnEDU
null vs. undefined in JavaScript / TypeScript
 
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In this video we discuss the origin of undefined vs. null in JavaScript and how you can easily unify these concepts in your codebase 🌹
Views: 743 Basarat Ali
TypeScript tutorial: Null and Undefined types
 
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Project source: https://github.com/OlegKonyk/rainbow Go to http://truejs.com to learn more. Looking for reliable online sources to learn TypeScript to take your JavaScript to the next new level? Well you’re at the right place here. This TypeScript Fundamental series contains everything necessary to bring you a complete understanding of TypeScript. My name is Oleg Konyk (https://www.linkedin.com/in/olegkonyk/) and I’m Full Stack Software Engineer working for large enterprise in Silicon Valley and I’m excited to share my knowledge with you!
Views: 850 truejs
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: 357 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: 2823 Skillsoft YouTube
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: 1349 Pankaj Panjwani
Jquery problem (loop td $.each) - Uncaught TypeError Cannot use 'in' operator to search for '4' in
 
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i get error like this : "Uncaught TypeError Cannot use 'in' operator to search for '4' in .." when trying to loop td element with $.each(). in this video will help you how to fixing the error.
Views: 2360 A. Hasbiyatmoko
Uncaught TypeError: Cannot read property 'height' of null
 
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https://issues.apache.org/jira/browse/DISPATCH-748
Views: 2719 Jiri Danek
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: 5558 Vis Dotnet
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: 15932 kudvenkat
Google Maps error - Cannot read property 'firstChild' of null
 
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I get this error when setup google maps v3.. : Uncaught TypeError : Cannot read property 'firstChild' of null that error caused by, your id 'map' in div is not correct ..
Views: 9274 A. Hasbiyatmoko
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: 45312 kudvenkat
SSO एरर  'Postmessage' of null या Cannot read property या CAPTURE WINDOW HANDLE is null
 
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Google Crome में एरर type Error Cannot read property Postmessage' of null Firefox में एरर type Error CAPTURE WINDOW HANDLE is null टेक्निकल सपोर्ट अजीत कुमार प्रजापत
.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: 3592 Vis Dotnet
How to get JSON data Array value access || JSON Basics
 
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JSON Course covers everything from start to finish to get you using JSON quickly! •Learn the basics of JSON •JSON structure data of delivery •basics of JavaScript object data •using Json data in your HTML pages •object data from JSON •Learn how to access external files •output object data and return data •Access return data •the of looping return data •creating Dynamic PHP JSON •contact access to PHP Json files •and a whole lot more Lecture 1 JSON Basics course introduction https://youtu.be/dspN3JW9DkU Lecture 2 JSON basics course setup and resources https://youtu.be/bt73nHuM6Us Lecture 3 JSON Basics JSON Schema structure https://youtu.be/fACYusPtBeQ Lecture 4 JSON Basics Object Data https://youtu.be/nGmF_-L6m58 Lecture 5 JSON Basics Get JSON data to HTML page https://youtu.be/gwTkd52Dm48 Lecture 6 JSON Basics JSON data Array value access https://youtu.be/HdFYtHJDGd8 Lecture 7 JSON Basics output objects update JSON objects https://youtu.be/XJ63R1J05ik Lecture 9 JSON Basics nesting objects in JavaScript https://youtu.be/o7VeW7Qdtcs Lecture 10 JSON Basics create .json file with data https://youtu.be/ot5h1FFy7jk Lecture 11 JSON Basics AJAX call to JSON file to return data as object https://youtu.be/lWRVKCAYbTk Lecture 12 JSON Basics AJAX to cross domain JSON files https://youtu.be/0ZejXYBLo5o Lecture 13 JSON Basics Cross Domain AJAX JSON requests https://youtu.be/Bm4PIls4BK0 Lecture 14 JSON Basics JSON multiple objects within JSON files https://youtu.be/0ZejXYBLo5o Lecture 15 JSON Basics looping multiple object items to return on HTML https://youtu.be/ws0mTZ6cuA Lecture 16 JSON Basics PHP JSON data https://youtu.be/BKfMknwC1g0 Lecture 17 JSON Basics PHP arrays encode as JSON data https://youtu.be/Mr88wApEqfs Lecture 18 JSON Basics Dynamic Content from PHP https://youtu.be/wKV9ZHZkPVc
Views: 71856 Help People
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: 296 Vis Dotnet
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: 1092 Vis Dotnet
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: 135978 SuperBoyZ
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: 17795 1BestCsharp blog
MVC   Fix Error   An exception of type System ArgumentNullException occurred in System Web Mvc dll
 
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http://howtodomssqlcsharpexcelaccess.blogspot.ca/2017/02/mvc-fix-error-exception-of-type.html - More Info Additional information: Value cannot be null.
Views: 2352 Vis Dotnet
Selenium WebDriver -- Fix for 3 common IE errors
 
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http://www.joecolantonio.com This video shows you how to fix three of the most common Selenium WebDriver IE issues: -Protected Mode settings are not the same for all zones. -The path to the driver executable must be set by the webdriver.ie.driver -Unexpected error Browser zoom level
Views: 16712 Joe Colantonio
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: 136 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: 111448 kudvenkat
jquery v1.11.2 problem  : cannot checked the checkbox with attr()
 
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how to solving : jquery cannot be checked using attr('checked', true)
Views: 167 A. Hasbiyatmoko
Onchange event, getting a value from a select tag and changing the visibility of other elements
 
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Get the value of a select tag, check it and change the visibility of other elements.
Views: 66906 vasillis-javed khan
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: 1756 Ankpro Training
How to Debug C# Programs #1: NullReferenceException, Histacom BIOS mock-up
 
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Hey guys! I'm going to be starting a bit of a mini-series where I show you guys how to debug and fix C# programs and the various crashes you'll get when something goes wrong. What better thing to start off with than a NullReferenceException in the code of a Packard Bell BIOS mock-up by my friend Richie? This one is a simple one, but it'll show you how I use the call stack and Locals window to find out where in the .NET Framework the exception was thrown and what variable reference was null. Based on those findings, I can very easily figure out what the actual bug is. In this case, an attempt was made to set the Font property of an uninitialized Label variable. Music by Anders Enger Jensen https://eox.no/shop https://soundcloud.com/eox-studios http://the8bitguy.com/shop Visit WG's website: https://watercolorgames.net/ Stalk me on Twitter: https://twitter.com/ThePlexgate
Views: 96 The Peacenet
ASP NET TextBox and 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-textbox-and-javascript.html In this video we will discuss 1. JavaScript focus method 2. JavaScript select method 3. How to count the number of characters as you type in a textbox and display that count in a label control JavaScript focus method : focus() method is used to put the keyboard cursor in a particular textbox when the web page loads so that we can start typing without having to first click in the textbox with the mouse. For example, when a web page with the following HTML and JavaScript is loaded, the keyboard cursor is already in the textbox waiting for the user to type his input. There is no need for the user to first click in the textbox with his mouse. Name : [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [script type="text/javascript"] document.getElementById("TextBox1").focus(); [/script] focus() method can be used with most HTML elements. For example, when a web page with the following HTML and JavaScript is loaded, the keyboard focus is set to DropDownList1 control. You can change the Gender value in the DropDownList by pressing ALT + Down Arrow keys simultaneously. Since we are using focus() method there is no need to first click on the DropDownList with the mouse. [table style="border:1px solid black"] [tr] [td]Name[/td] [td][asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox][/td] [/tr] [tr] [td]Gender[/td] [td] [asp:DropDownList ID="DropDownList1" runat="server"] [asp:ListItem Text="Male" Value="Male"][/asp:ListItem] [asp:ListItem Text="Female" Value="Female"][/asp:ListItem] [/asp:DropDownList] [/td] [/tr] [/table] [script type="text/javascript"] document.getElementById("DropDownList1").focus(); [/script] JavaScript select method : select() method is used to select the contents of a text field, so when you start typing, the new text that you have typed will automatically replace the existing selected text. You can use select() method with textbox and textarea controls. When a web page with the following HTML and JavaScript is loaded, the text in the textarea element is selected and when you start typing, the new text that you typed will replace the existing selected text. [table style="border:1px solid black"] [tr] [td]Name[/td] [td][asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox][/td] [/tr] [tr] [td]Comments[/td] [td] [asp:TextBox ID="TextBox2" TextMode="MultiLine" runat="server" Text="Type your comments here"][/asp:TextBox] [/td] [/tr] [/table] [script type="text/javascript"] document.getElementById("TextBox2").select(); [/script] How to count the number of characters as you type in a textbox and display the count in a label control Name : [asp:TextBox ID="TextBox1" runat="server" onkeyup="CountCharacters();"] [/asp:TextBox] [asp:Label ID="Label1" runat="server"][/asp:Label] [script type="text/javascript"] function CountCharacters() { document.getElementById("Label1").innerHTML = document.getElementById("TextBox1").value.length + " charactes"; } [/script]
Views: 35540 kudvenkat
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: 558 Teach Me Tech
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: 136 Nicky Camilleri
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: 159302 kudvenkat
Typescript Tutorial for Beginners in Hindi Part 4: Types In Typescript in Hindi
 
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Welcome all, we will see Types In Typescript in Hindi. Typescript type definitions. Basic Types Introduction For programs to be useful, we need to be able to work with some of the simplest units of data: numbers, strings, structures, boolean values, and the like. In TypeScript, we support much the same types as you would expect in JavaScript, with a convenient enumeration type thrown in to help things along. Boolean The most basic datatype is the simple true/false value, which JavaScript and TypeScript call a boolean value. let isDone: boolean = false; Number As in JavaScript, all numbers in TypeScript are floating point values. These floating point numbers get the type number. In addition to hexadecimal and decimal literals, TypeScript also supports binary and octal literals introduced in ECMAScript 2015. let decimal: number = 6; let hex: number = 0xf00d; let binary: number = 0b1010; let octal: number = 0o744; String Another fundamental part of creating programs in JavaScript for webpages and servers alike is working with textual data. As in other languages, we use the type string to refer to these textual datatypes. Just like JavaScript, TypeScript also uses double quotes (") or single quotes (') to surround string data. let color: string = "blue"; color = 'red'; Array TypeScript, like JavaScript, allows you to work with arrays of values. Array types can be written in one of two ways. In the first, you use the type of the elements followed by [] to denote an array of that element type: let list: number[] = [1, 2, 3]; Enum A helpful addition to the standard set of datatypes from JavaScript is the enum. As in languages like C#, an enum is a way of giving more friendly names to sets of numeric values. enum Color {Red, Green, Blue} let c: Color = Color.Green; Any We may need to describe the type of variables that we do not know when we are writing an application. These values may come from dynamic content, e.g. from the user or a 3rd party library. In these cases, we want to opt-out of type-checking and let the values pass through compile-time checks. To do so, we label these with the any type: let notSure: any = 4; notSure = "maybe a string instead"; notSure = false; // okay, definitely a boolean The any type is a powerful way to work with existing JavaScript, allowing you to gradually opt-in and opt-out of type-checking during compilation. You might expect Object to play a similar role, as it does in other languages. But variables of type Object only allow you to assign any value to them - you can’t call arbitrary methods on them, even ones that actually exist: typescript in Hindi Guys, Please support my channel by SUBSCRIBE to my channel and share my videos in your Social Network TimeLines. Don't Forget to Follow me on all Social Network, Instagram Link: https://www.instagram.com/vinodthapa55 Facebook Link: https://www.facebook.com/vinodthapa55 Twitter Link: https://twitter.com/vb55thapa Facebook ThapaTechnical Page Link: https://www.facebook.com/vinodbahadur...
Views: 4598 Thapa Technical
How to solve mvc reference not set error in asp.net || visual studio 2017 #Error tutorials 13
 
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In this video we have learn about asp.net and how to solve mvc reference not set error in asp.net vs 2017 its very easy way to learn and its also helpful for new learner student visual studio asp.net. So friends you have like the video so like , share and SUBSCRIBE. For More information visit my facebook page, google+,google community etc. Google+ https://plus.google.com/u/0/communities/102822779177107645376 Facebook https://www.facebook.com/Asp.NetTutorials/ Twitter https://twitter.com/AspTutorials Blogger http://aspdotnettutorialsvs2015.blogspot.in/ YouTube https://www.youtube.com/aspdotnettutorials Instagram https://www.instagram.com/aspdotnettutorials/?hl=en The Model-View-Controller (MVC) is an architectural pattern that separates an application into three main logical components: the model, the view, and the controller. Each of these components are built to handle specific development aspects of an application. ASP.NET is a web development platform, which provides a programming model, a comprehensive software infrastructure and various services required to build up robust web applications for PC, as well as mobile devices. ASP.NET works on top of the HTTP protocol, and uses the HTTP commands and policies to set a browser-to-server bilateral communication and cooperation. ASP.NET is a part of Microsoft .Net platform. ASP.NET applications are compiled codes, written using the extensible and reusable components or objects present in .Net framework. These codes can use the entire hierarchy of classes in .Net framework.
1.3: Graphing with Chart.js - Working With Data & APIs in JavaScript
 
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The lesson continues working with tabular data (CSV) and examines how to graph the data in an HTML5 canvas with Chart.js. 🎥 NEXT LESSON: https://youtu.be/uxf0--uiX0I 🎥 PREVIOUS LESSON: https://youtu.be/RfMkdvN-23o 🎥 FULL COURSE: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6YxDKpFzf_2D84p0cyk4T7X 💻https://github.com/CodingTrain/Intro-to-Data-APIs-JS 🔗https://www.chartjs.org/ 🚂 Website: http://thecodingtrain.com/ 💖 Patreon: https://patreon.com/codingtrain 🛒 Store: https://www.designbyhumans.com/shop/codingtrain/ 📚 Books: https://www.amazon.com/shop/thecodingtrain 🎥 Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH 🎥 Intro to Programming: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA 🔗 p5.js: https://p5js.org 🔗 Processing: https://processing.org Welcome to Working with Data and APIs in JavaScript! This course is for aspiring developers who want to learn how to work with data in web applications. How do you retrieve, collect, and store data? The course will be taught through a series of creating three data projects.
Views: 27153 The Coding Train
Tutorial Angular 6 - Adding Values to Server array.push(index)
 
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Basics of Angular 6, covered in this tutorial ngStyle ngIf / else ngFor NgClass (click) (input) Directives Property Binding Event Binding Two Way Binding Array
Views: 582 Kashif Hussain
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: 57004 The Coding Train
MVC - C# -  Fix Error -  Index and length must refer to a location within the string
 
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More info http://howtodomssqlcsharpexcelaccess.blogspot.ca/2017/10/mvc-fix-error-index-and-length-must.html
Views: 895 Vis Dotnet
Coding Challenge #138: Angry Birds with Matter.js
 
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An attempt to implement the basic mechanics of Angry Birds in JavaScript using p5.js and the matter.js physics engine. 💻 https://thecodingtrain.com/CodingChallenges/138-angry-birds 💻 https://editor.p5js.org/codingtrain/sketches/LbNt1nyxE 🔗 Angry Birds: https://www.angrybirds.com/ 🔗 Matter.js: http://brm.io/matter-js/ 🎥 Introduction to Matter.js: https://youtu.be/urR596FsU68 🎥 Inheritance in JavaScript: https://youtu.be/MfxBfRD0FVU 🎥 Phaser Game Development with Catt Small: https://youtu.be/T9kOFSFvgKc 🚂 Website: http://thecodingtrain.com/ 💖 Patreon: https://patreon.com/codingtrain 🛒 Store: https://www.designbyhumans.com/shop/codingtrain/ 📚 Books: https://www.amazon.com/shop/thecodingtrain 🎥 Coding Challenges: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH 🎥 Intro to Programming: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA 🔗 p5.js: https://p5js.org 🔗 Processing: https://processing.org #AngryBirds #JavaScript #Physics
Views: 87588 The Coding Train
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
What Does Undefined Mean?
 
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Not given meaning or significance, as by a definition; defined explained an undefined term 10 apr 2015 saying that 1 divided 0 is undefined, does not mean you can carry out the division and result some strange entity with property, but simply dividing has no. What does 'undefined' mean when entering a cont. Js console reasons for undefined shipping revolutionparts, inc. Adj not defined or made clear ''17 apr 2015your variable name should be age, and don't forget to call the prompt function var prompt('your message here ')but what does last line it returns undefined but also moz? Console. What does 'allowance taken' mean? My employer, a restaurant, has given me notice and acknowledgement of pay rate payday to sign definition undefined in the definitions dictionarythat not have meaning is thus assigned an interpretation define. Is odd or even that not defined if something undefined it's clear, such as your vacation plans. Meaning, pronunciation, translations and examples 11 jul 2016. That is just like when you ask whether the number 1. What does undefined slope mean? Virtual nerd. What does undefined mean? Definitions. See 2 authoritative translations of undefined in spanish with example sentences and audio did this page answer your question? What does 'ol!' mean? Undefined terminology what the term 'undefined' actually mean dictionary definition vocabulary. Undefined without fixed limits; Indefinite in form, extent, or application undefined authority2. For example, division by zero is undefined in the similar questions. Substring(3, 0))console. Log below are a few reasons that can impact why your order has undefined shipping. Undefined terminology what does the term 'undefined' actually mean undefined dictionary definition vocabulary. Undefined synonyms, undefined pronunciation, translation, english dictionary definition of. When i begin to enter a recipient's name, my computer recognizes it and completes the entry; But then word 'undefined' takes its place undefined definition not defined or made clear. X height)] combined exceeds 130 inches, but does not exceed the maximum a url? Q discussions. Javascript what does the undefined mean in node. English to spanish translation spanishdict. Mathematical meaning of undefined math forum ask drundefined (mathematics) wikipediawhat does mean at the final check turbotax support. Undefined definition of undefined by the free dictionarywhat does 'undefined' in mathematics mean? Youtubecodecademy. Define comes from the old french word defenir, meaning 'to end, terminate, what is of 'undefined' in mathematical terms? So we say that division by zero undefinedin computing (particularly, programming), undefined value a condition where an expression does other type systems can mean unknown, unpredictable value, or merely program failure on attempt its mathematics, has several different meanings, depending context geometry, simple words such as 'point' and 'line' are taken mathematics which not have so assigned interpretation. Official undefined definition and meaning limits from graphs function (video) in spanish.
Views: 946 Bun Bun 2
JavaScript Tutorial for Beginners: Learn JavaScript in 1 Hour [2019]
 
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Watch this JavaScript tutorial for beginners to learn JavaScript basics in one hour. 🔥Get my Complete JavaScript Course to master JavaScript (83% OFF - LIMITED TIME ONLY): http://bit.ly/2M1sp4B ⭐️Subscribe for more videos: https://www.youtube.com/channel/UCWv7vMbMWH4-V0ZXdmDpPBA?sub_confirmation=1 JavaScript is one of the most popular programming languages in 2019. A lot of people are learning JavaScript to become front-end and/or back-end developers. I've designed this JavaScript tutorial for beginners to learn JavaScript from scratch. We'll start off by answering the frequently asked questions by beginners about JavaScript and shortly after we'll set up our development environment and start coding. Whether you're a beginner and want to learn to code, or you know any programming language and just want to learn JavaScript for web development, this tutorial helps you learn JavaScript fast. You don't need any prior experience with JavaScript or any other programming languages. Just watch this JavaScript tutorial to the end and you'll be writing JavaScript code in no time. If you want to become a front-end developer, you have to learn JavaScript. It is the programming language that every front-end developer must know. You can also use JavaScript on the back-end using Node. Node is a run-time environment for executing JavaScript code outside of a browser. With Node and Express (a popular JavaScript framework), you can build back-end of web and mobile applications. If you're looking for a crash course that helps you get started with JavaScript quickly, this course is for you. ⭐️TABLE OF CONTENT ⭐️ 00:00 What is JavaScript 04:41 Setting Up the Development Environment 07:52 JavaScript in Browsers 11:41 Separation of Concerns 13:47 JavaScript in Node 16:11 Variables 21:49 Constants 23:35 Primitive Types 26:47 Dynamic Typing 30:06 Objects 35:22 Arrays 39:41 Functions 44:22 Types of Functions ⭐️Related Tutorials ⭐️ Node tutorial for beginners: https://youtu.be/TlB_eWDSMt4 Express.js tutorial for beginners: https://youtu.be/pKd0Rpw7O48 React tutorial for beginners: https://youtu.be/Ke90Tje7VS0 Angular tutorial for beginners: https://youtu.be/k5E2AVpwsko ⭐️Learn More ⭐️ Want to learn more from me? Check out my blog and courses: http://programmingwithmosh.com https://www.facebook.com/programmingwithmosh/ https://twitter.com/moshhamedani
Views: 909416 Programming with Mosh
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: 166560 kudvenkat
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: 2460 Vis Dotnet