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Dependency Properties in WPF
 
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Hi Guys, The following topic is one of the most important concept in WPF and it is called dependency properties. You can say without dependency properties there is no WPF. I have tried to explain this concept in this video. If you do not find it enough leave a comment as it is a vast topic. So keep learning and please like, subscribe and share to all in need. Thanks a tonnes
Views: 43818 DotNetSkoool
Attached Properties in WPF
 
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Hey Guys, Let us learn about attached properties in WPF. Attached properties are special dependency properties and are used in WPF in a vast manner. Please watch my dependency property video before proceeding. Happy learning and keep sharing.
Views: 9776 DotNetSkoool
Tutorial .NET Framework C# Capitulo 8.2.7 WPF Dependency Properties
 
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Capitulo 8.2.7 Dependency Properties Ventajas: Reduced memory footprint Value inheritance Change notification Value resolution strategy Todos los videos: http://www.youtube.com/playlist?list=PLcpcr7_BAC-cBd8gArm5uOR0HfHVoEH2v
Views: 368 James Vasquez
Expression Blend 3.2.5 (Using Dependency Properties)
 
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Using Dependency Properties
Views: 1046 seewhatseeabc
Setter & Constructor Injection in SPRING : Injecting literal values | DEPENDENCY injection in spring
 
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Dependency injection in spring framework: One of the most important concept that you should not miss. Spring dependency injection is one of the most important features that spring provides us. But why it is so popular? What is dependency injection in spring? why do we need it? If you are a beginner, thinking about these questions and looking forward to a fresh start, this is the right place and the right time to get started. Before you get started with this tutorial you have some dependency as well. Just kidding !! If you are completely new to spring then you need to watch a couple of my other videos which will get you started with spring IOC and dependency injection. Below are the links to those videos. Spring framework tutorial for beginners with examples in eclipse | Why spring inversion of control? https://youtu.be/r2Q0Jzl2qMQ What is dependency injection in spring [ Getting started ] | Spring framework tutorial for beginners https://youtu.be/vLMaFRgZjM0 Ok now we are all set to learn spring’s dependency injection concept and we are going to learn it step by step. So dependency injection is nothing but injecting the dependency and dependency could be in form of anything. It could be a string or primitive type, It could be a class type or it could be in form of collection. As I promised we are going to get started with the concept that will cover how we can inject string and primitive based values using spring framework ( injecting literals using spring). So we have two approaches here to inject a dependency which presents in form of a literal. The first one is using a setter method. So spring could internally use a setter method to inject the dependencies to a class and this approach is called setter injection. The second way using what spring can do a dependency injection using a constructor and this is what we called as a constructor injection. To let spring know that we want to inject the values using a setter method, we have to use a “property" tag and to use a constructor for dependency injection we can use a "constructor-arg”. so let’s cover everything in detail with this tutorial now. #dependencyinjection #setterinjection #constructorinjection Spring dependency injection is also an import feature of Spring IOC which we will be learning from this tutorial onwards with a step by step approach. for more spring framework training videos and spring important concepts consider subscribing to my channel by clicking the below link. https://www.youtube.com/channel/UCpUYkSDJpHug-vfC5S-NXRA?sub_confirmation=1 Stay tuned and like my Facebook page for more. https://www.facebook.com/seleniumexpress/ Music : ----------- credits : - (intro) Adventures by A Himitsu https://soundcloud.com/a-himitsu Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music released by Argofox https://youtu.be/8BXNwnxaVQE Music provided by Audio Library https://youtu.be/MkNeIUgNPQ8 intro template : www.youtube.com/Alexbau01
Views: 7599 Selenium Express
Dependency properties and Attached Properties
 
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Лекция: Dependency properties and Attached Properties part 3 Курс: Приложения за Windows Phone и Windows Store https://telerikacademy.com/Courses/Courses/Details/202 Лектор: Дончо Минков Уебсайт на "Академията на Телерик": http://academy.telerik.com Следете за предстоящи безплатни обучения на "Академията на Телерик" във Facebook: http://www.facebook.com/TelerikAcademy.
Views: 916 Telerik Academy
Generating Property Groups with IBM Developer for z Systems and Dependency Based Build
 
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This video shows you how to generate property groups for your DBB natured project. This is the third video in the IDz/DBB Integration series. Below are links to the previous videos. Creating User Builds: https://youtu.be/_Ak6I5jkYuY Getting Started with IBM Developer for z Systems and Dependency Based Build: https://youtu.be/zmh8hoqDigY
Views: 236 IBM Z
Dependency Injection, Unit Testing, C# vs F# | Mark Seemann at NDC Sydney 2018
 
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Dependency Injection + more from the main man himself Mark Seemann. https://tv.ssw.com/7495/mark-seemann-brendan-richards-ama-ndc-sydney-2018 || Subscribe for more content from SSW TV || || Press like and leave a comment below to let us know how we're doing || Twitter ↴ https://twitter.com/ssw_tv Facebook ↴ https://www.facebook.com/SSW.page/?fref=ts --- Description --- NDC returned to Sydney this year and SSW TV was there alongside .NET Rocks! to catch all of the action with our Ask Me Anything! sessions. As usual there were a host of top industry pros talking about various subjects related to software development. This year, SSW TV worked alongside .NET Rocks! to run and entire track of live interviews with some of those speakers after their sessions and talked about a number of topics. In this AMA, SSW's Brendan Richards talks with Mark Seemann, author of "Dependency Injection in .NET", about dependency injection, unit testing, C# vs F#, property based testing, and how using F# is a better general-purpose language. Credits: Mark Seemann → http://blog.ploeh.dk/ ------------------------------------------------------------------------------ Created by SSW TV | Videos By Developers, For Developers. See more at http://SSW.TV For any production related enquiries please email || [email protected] ||
Combo box value depends on the selection of another combo box in Access
 
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Related Video: Load Combo Box Value with First / Last / Previous Selected Value at: http://youtu.be/b-UzODHOrXw
Views: 178211 Nana Sara
C# WPF UI Tutorials: 03 - View Model MVVM Basics
 
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Part of a series of tutorials on creating WPF applications in C# Converts the previous TreeView demo application from code-behind to much better View Model MVVM application Source code here: https://github.com/angelsix/youtube
Views: 124468 AngelSix
Implementing the INotifyPropertyChanged interface
 
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For my course on how to create iOS and Android apps with C#, go here and get an 85% discount: https://www.udemy.com/xamarin-beginners/?couponCode=YOUTUBE_10 Implement the INotifyPropertyChanged interface to get started with Data Binding and MVVM on XAML-based technologies. Coupon for the Windows Universal App Development course on Udemy: http://bit.ly/1GCNpK3 Watch the Introduction to MVVM: https://www.youtube.com/watch?v=k77dqVVWgB8
Views: 54552 Eduardo Rosas
Special Property Tax Transactions - Lesson 1
 
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In this video, 7.06 – Special Property Tax Transactions – Lesson 1, the Internal Revenue Code abounds with complex rules concerning transactions in property. In this lesson, Roger Philipp, CPA, CGMA, teaches the essentials of the wash sale rules and the related party property transaction rules. If you sell property such as shares of stock at a loss, then buy identical property within 30 days of the sale, any loss on the initial sale is not deductible. Instead it is treated as an addition to the tax basis of the identical property you now own. Of course, any gain on sale of the original property would still be taxable. Roger then covers related party sales rules. First, Roger explains what are considered related parties for this purpose, comparing and contrasting them with the individual taxation dependency exemption rules. He answers questions such as: Is an aunt or uncle considered a related party? What about a sibling? When an asset is sold to a related party, any gain is taxable but the loss is not deductible. The loss becomes subject to the dual-basis rules in the hands of the individual it was sold to, similar to the dual-basis rules in gift tax, which Roger reviews. Connect with us: Website: https://www.rogercpareview.com Blog: https://www.rogercpareview.com/blog Facebook: https://www.facebook.com/RogerCPAReview Twitter: https://twitter.com/rogercpareview LinkedIn: https://www.linkedin.com/company/roger-cpa-review Are you accounting faculty looking for FREE CPA Exam resources in the classroom? Visit our Professor Resource Center: https://www.rogercpareview.com/professor-resource-center/ Video Transcript Sneak Peek: All right, let's continue on. Let's talk about Special Property Tax Transactions. So we're still in that property tax section. This is where the government says "Hey, we're going to giveth and taketh." What does that mean? It means you made money. "Oh my gosh, that's great, come here buddy, yeah! Let me have my 39.6 percent or my 20 percent long-term or whatever it is.” Or you lost money, so sorry! Not tax deductible." So this is where certain gains are taxable, and losses you just don't get them. For example, a wash sale. A wash sale is kind of you're playing the stock market and you're like "I'm gonna make it big, I'm gonna make it big!" So you buy some stock. You spent 300 bucks on the stock. The stock has gone down in value, so you sell it for 210. I have a $90 loss. Okay, that's great. Are capital gains, capital losses deductible, and taxable? Yes, they are, however, what happens is it's a stock I really like. I like this company, so what I decide to do is I'm going to sell it, take the loss, but then I'm going to right away buy it back. So I buy it back for 200 because I bought it, it went down, and it's still going down. Instead of taking a 90 dollar loss, and then have a new basis of 200, the government says if you buy this, and you buy it within 30 days of buying or selling, that is called a "wash sale" and you basically, if you had a gain, it's taxable, but if you have a loss it's not deductible. What happens is you just have to add it to the basis of the stock. So instead of 200 you get no loss, basis would be 290. So it says here, "losses from wash sales are not deductible. If an asset that has been sold at a loss is repurchased within 30 days of the sale, the loss may not be deducted, but it is added to the base of the repurchased stock. This also applies to purchases obtained of identical assets in the 30 days either before or after." So someone might say in anticipation of selling this "I'm going to buy some more, and then I'll sell this one." Same thing, so here's 30 days, boom! This way, this way, that's called a "wash sale." Loss is not deductible. What if you have a gain? Of course, gains, they're taxable. Losses from related party sales are not deductible, so if I sell something to a related party. If I make money, it's a gain. If I lose money, they go "sorry, it's not deductible." Now, before we go into this in more detail what is considered a related party? And remember we talked about a dependency exemption, right. I like to do what? "C" the IRS jack you out of your money. How do you know if they're a dependent? They have to be a citizen, can't make much income, related to you or live with you the entire year, support and no joint tax return. As far as the related we said, if they're related they don't have to live with you, but if they are ... I'm sorry if they're related they don't have to live with you. If they are not related they have to live with you the entire year like your cousin.
Views: 11109 Roger CPA Review
(Child Tax Credit Rules 2018) Child Tax Credit Explained (How the Child Tax Credit Works)
 
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Child Tax Credit 2018 Rules Explained (How the Child Tax Care Credit Works) Very Detailed). Includes downloadable spreadsheet. This video will cover the child tax care credit rules for both 2017 and 2018. Link to downloadable work doc: https://www.dropbox.com/s/qnsbxgb1z35b2xy/Child%20Tax%20Credit.docx?dl=0 Here are the time stamp shortcuts so you can jump to or go back to any point in the video! •How much is the child tax credit worth - 1:36 •How the child tax credit works - 1:50 •Is the child tax credit refundable? - 2:09 •Child tax credit adjusted gross income test - 3:30 •Child tax credit income phaseout (How it works) - 4:10 •Qualifying Child Test Rules for Child Tax Credit - 5:08 •Qualifying Child Test check the box rules - 8:00 •What worksheet to use for child tax credit - 9:00 •2018 Child tax credit rules! 2018 changes - 12:50 •Final things to know about the child tax credit. Very important - 15:00 2018 Child Tax Care Credit Changes and Updates (Per HR&Block) Under the new Tax Cuts and Jobs Act (TCJA) the following child tax credit changes will take place in 2018: • The Child Tax Credit under 2018 tax reform is worth up to $2,000 per qualifying child. The age cut-off remains at 17 (the child must be under 17 at the end of the year for taxpayers to claim the credit). • The refundable portion of the credit is limited to $1,400. This amount will be adjusted for inflation after 2018. • The earned income threshold for the refundable credit is lowered to $2,500. • The beginning credit phase out for the CTC increases to $200,000 ($400,000 for joint filers). The phase out also applies to the new family tax credit. • The child must have a valid SSN to claim the nonrefundable and refundable credit. Prior to the TCJA, the taxpayer who was eligible to claim the child’s dependent exemption was also the one eligible to claim the CTC. In turn, the taxpayer and child had to meet several “tests” for the one to be considered the dependent of the other. The TCJA eliminates the dependent exemption itself, but retains the definition of dependent to claim the CTC and other child- or dependent-related tax benefits. For Child Tax Credit reform purposes, this will usually mean that the child must be related to the taxpayer in one of several ways (son, daughter, grandchild, etc.), must live in the taxpayer’s home more than half the year, and must not provide more than half of his or her own support. Special rules apply if the parents are divorced or legally separated. As under previous law, strict due diligence requirements apply for tax professionals who prepare returns with the refundable Child Tax Credit during the 2018 tax year. All changes to the new Child Tax Credit expire after December 31, 2025. Check out some of our other videos and playlists here: ♦ Investing in the stock market!: https://goo.gl/yVAoES ♦ Save money, budget, build wealth and improve your financial position at any age: https://goo.gl/E97nJj ♦ Learn more about how federal income taxes work: https://goo.gl/D1hCX1 ♦ Ways to improve your life at any age: https://goo.gl/uq72bu Please subscribe for our future weekly videos. New videos typically every Sunday or Wednesday. Do not forget to help out a friend and share this information with them as well. About me: I'm passionate about helping people build wealth by learning more about personal finances, investing and taxes. My mission is to help people improve their financial position career and life. I also enjoy teaching others about the accounting profession, tech tips, and helping people overcome challenges in their everyday life as well as their career. You can find our content on other internet planets such as....... My Website: Moneyandlifetv.com Twitter: https://twitter.com/Mkchip123 Facebook: https://www.facebook.com/moneyandlifetv/ ***Disclaimer*** All of the information in this video is presented for educational purposes only and should not be taken as financial, tax, or investing advice by any means. I am not a financial adviser. Although I am a CPA I cannot advise someone for tax purposes without knowing their complete tax situation. You should always do your own research before implementing new ideas or strategies. If you are unsure of what to do you should consider consulting with a financial adviser or tax accountant such as an Enrolled Agent, or Certified Public Accountant in the area in which you live. Thanks for taking time to check out this video, and our channel. Have a great day and we will see you in the next video!
Views: 12671 Money and Life TV
Data Context Property in WPF
 
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Hey Guys,Since you are aware of data bindings now , let us understand what is data context property in WPF. You need to understand the data context property well to properly bound the data. So learn well and please like share and subscribe.
Views: 15092 DotNetSkoool
Spring Tutorial 06 - Injecting value into a Bean property
 
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http://www.gontu.org In this tutorial, we will learn how to inject value into a bean's property in spring.
Views: 82686 gontuseries
How to Use A Control Value Accessor [Angular Series]
 
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Check out my latest course, Isomorphic JavaScript with MEVN (MongoDB, ExpressJS, VueJS, NodeJS) Stack at https://www.packtpub.com/web-development/isomorphic-javascript-mevn-stack-video In this video, I demonstrate how to use the ControlValueAccessor to connect a custom element to Angular's Form API
Views: 1119 David Acosta
How to Data Bind in WPF (C#/XAML)
 
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A short tutorial on how to use data binding to synchronize UI elements in a WPF C# application. XAML: https://github.com/crclayton/WPF-DataBinding-Example/blob/master/WpfApplication2/MainWindow.xaml C#: https://github.com/crclayton/WPF-DataBinding-Example/blob/master/WpfApplication2/MainWindow.xaml.cs
Views: 45376 Charles Clayton
Understanding INotifyPropertyChanged Interface in WPF
 
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Hey Guys, After some basic concepts in WPF let us start learning some advanced concepts which form the base of MVVM pattern. INotifyPropertyChanged interface is an essential part of it. So learn well and please like, share and subscribe.
Views: 26066 DotNetSkoool
WPF Tutorial 22 - More On Dependency Properties
 
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Link to List of Precedence Order: http://msdn.microsoft.com/en-us/library/ms743230.aspx Today we talk about WPF Dependency Properties - Validation, Coercion, and Precedence
Views: 30980 Continuously Building
WPF Resources
 
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Hey Guys, Let us learn what are WPF Resources, which is a very fundamental concept in WPF. Resources are of two types Static and Dynamic in WPF. Please leave a comment if you have any doubt in this concept, also please subscribe to my channel and share with your friends.
Views: 25662 DotNetSkoool
Sarmaşık Gülleri  Keman çalımı
 
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A file appears to be missing. A file appears to be missing. Try re-installing Microsoft .NET Framework 4.0 System.IO.FileNotFoundException: Could not load file or assembly 'Accessibility, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. Sistem belirtilen dosyayı bulamıyor. File name: 'Accessibility, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' at System.Windows.Controls.Primitives.Popup.PopupSecurityHelper.ForceMsaaToUiaBridge(PopupRoot popupRoot) at System.Windows.Controls.Primitives.Popup.CreateWindow(Boolean asyncCall) at System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) at System.Windows.Data.BindingOperations.SetBinding(DependencyObject target, DependencyProperty dp, BindingBase binding) at System.Windows.Controls.Primitives.Popup.CreateRootPopup(Popup popup, UIElement child) at System.Windows.Controls.ToolTip.OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e) at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args) at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType) at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal) at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value) at System.Windows.Controls.PopupControlService.RaiseToolTipOpeningEvent() at System.Windows.Threading.DispatcherTimer.FireTick(Object unused) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
Views: 63 Oyun Nakli HD
Angular component input properties
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2017/07/angular-component-input-properties.html Slides http://csharp-video-tutorials.blogspot.com/2017/07/angular-component-input-properties_24.html Angular 2 Tutorial playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhWqGD8BuKuX-VTKqlNBj-m6 Angular 2 Text articles and slides http://csharp-video-tutorials.blogspot.com/2017/06/angular-2-tutorial-for-beginners_12.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 pass data from the container component to the nested component using input properties. At the moment the count of employees displayed against each radio button are hard-coded with in the EmployeeCountComponent. Here is the code in employeeCount.component.ts file : Notice the values for the 3 properties (all, male, female) are hard-coded. We want the values for these 3 properties to be passed from the container component i.e EmployeeListComponent. export class EmployeeCountComponent { all: number = 10; male: number = 5; female: number = 5; } Convert a component property to an input property using @Input decorator : To be able to pass the values for these 3 properties from the container component to the nested component we need to decorate the properties with @Input() decorator. Decorating a property with @Input() decorator makes the property an input property. Notice I have also removed the default hard-coded values, as we will be passign the values from the parent component i.e EmployeeListComponent. To be able to use the @Input() decorator we will have to first import it from @angular/core. import { Component, Input } from '@angular/core'; @Component({ selector: 'employee-count', templateUrl: 'app/employee/employeeCount.component.html', styleUrls: ['app/employee/employeeCount.component.css'] }) export class EmployeeCountComponent { @Input() all: number; @Input() male: number; @Input() female: number; } Passing data from the parent component to the child component : There are 2 modifications that we need to do in EmployeeListComponent to be able to pass values from the parent component i.e EmployeeListComponent to the child component i.e EmployeeCountComponent. The first change is in EmployeeListComponent TypeScript file as shown below. Notice I have introduced 3 methods that return male employees count, female employees count and total employees count. getTotalEmployeesCount(): number { return this.employees.length; } getTotalMaleEmployeesCount(): number { return this.employees.filter(e =] e.gender === "Male").length; } getTotalFemaleEmployeesCount(): number { return this.employees.filter(e =] e.gender === "Female").length; } Please note : In the filter method we are using tripple equals (===) instead of double equals (==). The table below explains single, double and tripple equals in TypeScript. Operator Use to = Assign a value == Compare two values === Compare two values and their types The second change is in the view template of EmployeeListComponent i.e employeeList.component.html file. Notice with in [employee-count] directive we are using property binding to bind the properties (all, male, female) of the nested component (EmployeeCountComponent) with the 3 methods in the container component (EmployeeListComponent). [employee-count [all]="getTotalEmployeesCount()" [male]="getMaleEmployeesCount()" [female]="getFemaleEmployeesCount()"] [/employee-count] At this point, save all the changes and run the application and we see the correct count of employee next to each radio button. Now, let's add the following new employee object to the to the employees array in EmployeeListComponent. { code: 'emp106', name: 'Steve', gender: 'Male', annualSalary: 7700.481, dateOfBirth: '11/18/1979' } Save changes and reload the web page and notice that All count and Male count is increased by 1 as expected. At the moment when we click the radio buttons nothing happens. In our next video we will discuss how to pass data from the child component to the parent component i.e when a radio button checked event is raised in the child component, we want to know about it in the parent component so we can react and decide which employees to show in the table depending on the selection of the radio button.
Views: 74048 kudvenkat
Angular component output properties
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2017/07/angular-component-output-properties.html Slides http://csharp-video-tutorials.blogspot.com/2017/07/angular-component-output-properties_25.html Angular 2 Tutorial playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhWqGD8BuKuX-VTKqlNBj-m6 Angular 2 Text articles and slides http://csharp-video-tutorials.blogspot.com/2017/06/angular-2-tutorial-for-beginners_12.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 Search Tags angular 2 component output example angular 2 component output event angular 2 component output properties angular child component output angular2 child component call parent function angular2 eventemitter between components angular2 eventemitter callback angular2 eventemitter child angular2 eventemitter emit angular2 eventemitter import eventemitter in angular2 angular2 eventemitter not working angular2 eventemitter sample angular2 eventemitter tutorial angular2 eventemitter typescript In this video we will discuss 1. How to pass user actions or user entered values or selections from the child component to the parent component using output properties. 2. We will discuss creating custom events using angular EventEmitter class 3. What is ng-container directive and it's use At the moment when we click the radio buttons, nothing happens. Here is what we want to do. All(6) radio button is clicked - Display all the employees in the table Male(4) radio button is clicked - Display the 4 Male employees in the table Female(2) radio button is clicked - Display the 2 Female employees in the table To achieve this we are going to make use of component output properties. First let's look at the changes required in the nested component i.e EmployeeCountComponent. The changes required in employeeCount.component.ts are comented and self-explanatory // Import Output and EventEmitter import { Component, Input, Output, EventEmitter } from '@angular/core'; @Component({ selector: 'employee-count', templateUrl: 'app/employee/employeeCount.component.html', styleUrls: ['app/employee/employeeCount.component.css'] }) export class EmployeeCountComponent { @Input() all: number; @Input() male: number; @Input() female: number; // Holds the selected value of the radio button selectedRadioButtonValue: string = 'All'; // The Output decorator makes the property an Output property // EventEmitter class is used to create the custom event // When the radio button selection changes, the selected // radio button value which is a string gets passed to the // event handler method. Hence, the event payload is string. @Output() countRadioButtonSelectionChanged: EventEmitter[string] = new EventEmitter[string](); // This method raises the custom event. We will bind this // method to the change event of all the 3 radio buttons onRadioButtonSelectionChange() { this.countRadioButtonSelectionChanged.emit(this.selectedRadioButtonValue); } } The following are the changes required in the view template of EmployeeCountComponent i.e employeeCount.component.html. Notice we have made 3 changes on each radio button 1. value attribute is set to (All, Male or Female) 2. Implemented 2 way data-binding using the ngModel directive. Notice ngModel is bound to selectedRadioButtonValue property in the component class. This 2 way data-binding ensures whenever the radio button selection changes, the selectedRadioButtonValue property is updated with the value of the selected radio button. 3. onRadioButtonSelectionChange() method is binded to "change" event of the radio button. So this means whenever, the selection of the radio button changes, onRadioButtonSelectionChange() method raises the custom event "countRadioButtonSelectionChanged". We defined this custom event using Angular EventEmitter class. [span class="radioClass"]Show : [/span] [input name='options' type='radio' value="All" [(ngModel)]="selectedRadioButtonValue" (change)="onRadioButtonSelectionChange()"] [span class="radioClass"]{{'All(' + all + ')'}}[/span] [input name="options" type="radio" value="Male" [(ngModel)]="selectedRadioButtonValue" (change)="onRadioButtonSelectionChange()"] [span class="radioClass"]{{"Male(" + male + ")"}}[/span] [input name="options" type="radio" value="Female" [(ngModel)]="selectedRadioButtonValue" (change)="onRadioButtonSelectionChange()"] [span class="radioClass"]{{"Female(" + female + ")"}}[/span]
Views: 77794 kudvenkat
C# Wpf RandomCityGen Binding Properties   Tutorial #5
 
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In this tutorial we bind our properties from our viewmodel to our view.
Views: 857 Mark Dunham
C# WPF UI Tutorials: 11 - Dependency Injection & Multiple Projects
 
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Part of a series of tutorials on creating WPF applications in C# Now our project is growing, we split up the WPF project into a class library. Then we add Dependency Injection using NInject to allow us to access our view models anywhere in the application. Source code: https://github.com/angelsix/fasetto-word/tree/164f022b89c60f2a72baa32fc33edb4bbf4f057b Source code at the "cleanup" stage mid video: https://github.com/angelsix/fasetto-word/tree/3dd755b5bf9065f025b5a597f11298cfa6799724 Latest code: https://github.com/angelsix/fasetto-word
Views: 21624 AngelSix
Spring Tutorial 05 - ApplicationContext and Property Initialization
 
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We'll first replace the BeanFactory with the more powerful ApplicationContext. We'll then make Spring initialize a property of an object by specifying the value in the configuration XML.
Views: 554209 Java Brains
Spring Tutorial 9 - Dependency Injection with a Collection property ( Hands on using Eclipse IDE )
 
04:59
http://www.gontu.org In this tutorial, we will understand how to initialize a collection property by spring's dependency injection framework.
Views: 56233 gontuseries
Remote Debugging Using СefSharp
 
03:12
Learn how to remote debugging using СefSharp. You can get the source code of this sample in the GitHub repository: https://github.com/cefsharptutorials/cefsharptutorials/tree/master/CefSharpTutorials/RemoteDebugging About CefSharp: https://cefsharp.github.io/ Previous tutorials: CefSharp Basics: Display an HTML5/CSS3 Webpage - https://www.youtube.com/watch?v=gphqZTCWoZE&list=PLtnonz7r7xrqI7OS0eWwc4lrwV5zqI4r3 URL Navigation Using CefSharp - https://www.youtube.com/watch?v=NTlErRwyYRA&index=2&list=PLtnonz7r7xrqI7OS0eWwc4lrwV5zqI4r3 Executing JavaScript from the .NET Side Using CefSharp - https://www.youtube.com/watch?v=Gmdx0cGnNsE&list=PLtnonz7r7xrqI7OS0eWwc4lrwV5zqI4r3&index=3 Injecting a .NET Object into JavaScript Using СefSharp - https://www.youtube.com/watch?v=T10Xfe4bepo&list=PLtnonz7r7xrqI7OS0eWwc4lrwV5zqI4r3&index=4 Transcript: 00:01 Remote debugging using СefSharp 00:06 Create and configure a WPF solution with CefSharp 00:12 Create a project 00:13 Add the CefSharp.Wpf NuGet package and create the x64 or x86 configuration 00:20 You can find detailed instructions in our previous tutorials. (Check out the links under this video) 00:26 Mark Up the Main Window 00:28 Define the name of the root grid 00:30 We need to insert two browser instances into the main window so let's create two columns in the Root Grid 00:44 Implement the Main Window behaviour 00:46 Create two fields in the MainWindow class for both left and right browsers 00:57 After the window initialization create a new instance of the ‘CefSettings’ class 01:09 Then set the value of the ‘RemoteDebuggingPort’ property to 8088 01:13 Call the ‘Cef.Initialize’ method and pass the created settings instance as its argument 01:19 Initialize the ‘leftBrowser’ field with the new instance of the ChromiumWebBrowser 01:24 Add this field to the RootGrid 01:30 Set the grid column index of the browser using the ‘Grid.ColumnIndex’ dependency property 01:42 Then repeat the previous three steps for the ‘rightBrowser’ field but change the value of the grid column index property 01:59 Create the ‘FrameLoadEnd’ event handler for the left browser 02:04 Set the ‘Address’ property value for the left browser 02:16 Inside the ‘FrameLoadEnd’ event handler set the Address property of the right browser to ‘localhost:8088’. 02:23 You need to use the dispatcher because the ‘FrameLoadEnd’ event occurs inside the non-UI thread. 02:35 Build and launch #Debugging #CefSharp #EmbeddedBrowsers
Views: 417 Embedded Browsers
XAML WPF - Styles Part 1, Window Resources
 
11:53
In this video we discuss using styles in WPF and utilizing the resources in a Window of our application. We cover extending styles using the BasedOn property and creating base styles for specific controls. This is part 1 of learning styles in WPF. Code from this episode: Coming soon... *Support me on Patreon https://www.patreon.com/user?u=4666568 ** Tip Jar ** Paypal: [email protected] BTC: 3DkvwvcQ8Vt2U84jdtEhNBx2Ueai3Xttmu ETH: 0xFf79A145e1ED6F538607Ec374968e605cbea758b BCH: qqpgrnzuhc5hav4e79m8nfhmugs46jtl0ujxcu0tj5 LTC: MHXQmJA3hkwTPeArB9QPNkcLiHQx723yMb
Views: 6768 ToskersCorner
Two way data binding in angular 2
 
07:54
Text version of the video http://csharp-video-tutorials.blogspot.com/2017/07/two-way-data-binding-in-angular-2.html Slides http://csharp-video-tutorials.blogspot.com/2017/07/two-way-data-binding-in-angular-2_10.html Angular 2 Tutorial playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhWqGD8BuKuX-VTKqlNBj-m6 Angular 2 Text articles and slides http://csharp-video-tutorials.blogspot.com/2017/06/angular-2-tutorial-for-beginners_12.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 Two way Data Binding in Angular 2. Consider the following code in app.component.ts import { Component } from '@angular/core'; @Component({ selector: 'my-app', template: ` Name : [input [value]='name'] [br] You entered : {{name}} ` }) export class AppComponent { name: string = 'Tom'; } [input [value]='name'] : Binds component class "name" property to the input element’s value property You entered : {{name}} : Interpolation displays the value we have in "name" property on the web page At the moment when we change the value in the textbox, that changed value is not reflected in the browser. One way to achieve this is by binding to the input event of the input control as shown below. Name : [input [value]='name' (input)='name = $event.target.value'] [br] You entered : {{name}} At this point, as we type in the textbox, the changed value is displayed on the page. So let's understand what is happening here. Conside this code Name : [input [value]='name' (input)='name = $event.target.value'] [br] You entered : {{name}} [value]='name' : This property binding flows data from the component class to element property (input)='name = $event.target.value' : This event binding flows data in the opposite direction i.e from the element to component class property "name" $event - Is exposed by angular event binding, and contains the event data. To retrieve the value from the input element use - $event.target.value. name = $event.target.value - This expression updates the value in the name property in the component class You entered : {{name}} - This interpolation expression will then display the value on the web page. So in short two-way data binding in Angular is a combination of both Property Binding and Event Binding. To save a few keystrokes and simplify two-way data binding angular has provided ngModel directive. So with ngModel directive we can rewrite the follwing line of code Name : [input [value]='name' (input)='name = $event.target.value'] Like this : Name : [input [(ngModel)]='name'] At this point if you view the page in the browser, you will get the following error Template parse errors: Can't bind to 'ngModel' since it isn't a known property of 'input' This is because ngModel directive is, in an Angular system module called FormsModule. For us to be able to use ngModel directive in our root module - AppModule, we will have to import FormsModule first. Here are the steps to import FormsModule into our AppModule 1. Open app.module.ts file 2. Include the following import statement in it import { FormsModule } from '@angular/forms'; 3. Also, include FormsModule in the 'imports' array of @NgModule imports: [BrowserModule, FormsModule] With these changes, reload the web page and it works as expected. So here is the syntax for using two-way data binding in Angular [input [(ngModel)]='name'] The square brackets on the outside are for property binding The parentheses on the inside are for event binding To easily remember this syntax, compare it to a banana in a box [()]
Views: 87128 kudvenkat
Spring Boot Profiles & Configuration Management - Application Properties
 
20:57
Master Microservices with Spring Boot and Spring Cloud - https://www.udemy.com/microservices-with-spring-boot-and-spring-cloud/?couponCode=YOUTUBE_DESC Master Hibernate and JPA with Spring Boot in 100 Steps - https://www.udemy.com/hibernate-jpa-tutorial-for-beginners-in-100-steps/?couponCode=YOUTUBE_DESC Spring Framework Interview Guide - 200+ Questions & Answers - https://www.udemy.com/spring-interview-questions-and-answers/?couponCode=YOUTUBE_DESC Master Java Web Services and REST API with Spring Boot - https://www.udemy.com/spring-web-services-tutorial/?couponCode=YOUTUBE_DESC Learn Spring Boot in 100 Steps - Beginner to Expert - https://www.udemy.com/spring-boot-tutorial-for-beginners/?couponCode=YOUTUBE_DESC Java Interview Guide : 200+ Interview Questions and Answers - https://www.udemy.com/java-interview-questions-and-answers/?couponCode=YOUTUBE_DESC Become a FullStackDeveloper and Architect - https://github.com/in28minutes/learn/blob/master/readme.md Download Presentation and Notes - https://courses.in28minutes.com/p/in28minutes-course-guide Java, Spring Boot, REST, Microservices Learning Path - https://www.youtube.com/watch?v=jf6doctfxWQ All Spring Boot Articles - http://www.springboottutorial.com/spring-boot-projects-with-code-examples The in28Minutes Way - https://github.com/in28minutes/in28minutes-initiatives/tree/master/The-in28Minutes-Way Troubleshooting Guide - https://github.com/in28minutes/in28minutes-initiatives/tree/master/The-in28Minutes-TroubleshootingGuide-And-FAQ Spring Boot Profiles & Configuration Management - Application Properties Code, Videos, Courses and Examples at http://www.springboottutorial.com/spring-boot-tutorials-for-beginners Step 15: Adding Dynamic Configuration to your application : YAML & More.. Step 16: Basics of Profiles Step 17: Advanced Application Configuration with Type Safe Configuration Properties
Views: 21801 in28minutes
C# Edge 284    WPF10   Attached Properties
 
03:04
http://cyborgmaguscsharpedge.com/ has all my video tutorials usually with source code in an organized cyber-library. In this video we learn about attached properties which attach a child element in xaml to it's parent via links to specific characteristics (i.e. attach Buttons to their parent Grid via Grid Row attached properties). http://youtu.be/HDZuZhu26DA
Views: 273 cyborgmagus
Part 27 - C# Tutorial - Properties in C#.avi
 
15:40
In this part of the c sharp tutorial we will learn 1. Read/Write Properties 2. Read Only Properties 3. Write Only Properties 4. Auto Implemented Properties Text version of the video http://csharp-video-tutorials.blogspot.com/2012/06/part-27-c-tutorial-properties-in-c.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-27-properties-in-c.html All C# Text Articles http://csharp-video-tutorials.blogspot.co.uk/p/free-c-video-tutorial-for-beginners.html All C# Slides http://csharp-video-tutorials.blogspot.com/p/c.html Complete C# tutorial https://www.youtube.com/playlist?list=PLAC325451207E3105 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: 211993 kudvenkat
BQT ICO Review
 
08:17
Many Blockchain experts believe that while trying to find more ways to get married with FIAT, CRYPTO, the MB believes that it will completely reduce the dependency on FIAT. H has a Crypto property value and can be used as a means of negotiating to acquire another Crypto property. They believe that the need to acquire any of the Crypto assets can be achieved through substantial provision of various Crypto assets and that the trader has been negotiated directly. For More Information: Website: https://bqt.io/ Whitepaper: https://bqt.io/assets/pdf/whitepaper.pdf Twitter: https://twitter.com/bqt_ico Telegram: https://t.me/BQTCommunity ANN thread: https://bitcointalk.org/index.php?topic=4855053.msg44205944#msg44205944 Creator Conten: Bitcointalk Username : Z4k4ri4 Profil Bitcointalk: https://bitcointalk.org/index.php?action=profile;u=2303473 ETH Address: 0xA59EfCd1D23E30a9DfB13E64FB8275aACD341fbF #cryptocurrency #bitcoin #ethereum #crypt #investment #bitcoin #freebitcoin #bounty #eth #ICO #Bounty #Crypto #Freetoken #Altcoin #Distribusi #Wallet #Ether #ETH #BTC #bitcoin
Views: 38 Samsul Tube
Data Binding Modes in WPF
 
12:52
WPF is not complete untill you learn about data bindings. This lecture is first step towards it. Like this video if you are benefitted from it. This is a very basic data binding example which explains you about different binding modes.
Views: 36870 DotNetSkoool
Types of Triggers in WPF
 
14:14
Hi Guys, Now that you understand what are triggers, it is time to learn the three types of triggers that WPF provides us to work. I hope you enjoy learning the concept. Please like the video and share it with your friends. Also do not forget to subscribe.
Views: 19006 DotNetSkoool
User Controls in WPF
 
11:14
Hey Guys, Let us learn about reusable windows or User Controls in WPF. We often use them in MVVM based applications. Please do like share and subscribe.
Views: 13681 DotNetSkoool
Commands In WPF
 
20:35
Hi Guys , Let us understand what are commands in WPF. WPF commands play a important role to avoid code behind and build apps using MVVM pattern. Let us implement a very simple command. Video is bit long to make you understand but it is worthy time spent to understand commands.
Views: 26463 DotNetSkoool
What is dependency injection in spring [ Getting started ] | Spring framework tutorial for beginners
 
19:46
Dependency injection in spring framework: One of the most important concept that you should not miss. Spring dependency injection is one of the most important features that spring provides us. But why it is so popular? What is dependency injection in spring? why do we need it? If you are a beginner, thinking about these questions and looking forward to a fresh start, this is the right place and the right time to get started. So the dependency could be a simple property of the class and it could be in form of literals, in form of objectives or in form of a collection. We will understand about this in the following tutorials and also we are going to learn that how we can inject the dependencies by using setter method or by a constructor which is called as setter injection or constructor injection respectively. Before you move forward to my next video and get started with the coding, you should have some fundamental on spring IOC or spring inversion of control concept. I already had a full training session on Spring IOC which is available at the below link [ Spring framework tutorial for beginners with examples in eclipse | Why spring inversion of control? ] https://youtu.be/r2Q0Jzl2qMQ This above tutorial covers one of the important feature of spring called Spring IOC which also covers about : Spring beans Spring container and how to make an app configurable by using spring IOC concept. Please use the above tutorial as the reference to the next tutorial and make sure to watch it before you start following my dependency injection coding example. Spring dependency injection is also an import feature of Spring IOC which we will be learning from this tutorial onwards with a step by step approach. for more spring framework training videos and spring important concepts consider subscribing to my channel by clicking the below link. https://www.youtube.com/channel/UCpUYkSDJpHug-vfC5S-NXRA?sub_confirmation=1 #dependencyinjection #spring #springdi Stay tuned and like my Facebook page for more. https://www.facebook.com/seleniumexpress/ Music : ----------- credits : - (intro) Adventures by A Himitsu https://soundcloud.com/a-himitsu Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b... Music released by Argofox https://youtu.be/8BXNwnxaVQE Music provided by Audio Library https://youtu.be/MkNeIUgNPQ8
Views: 8836 Selenium Express
Behavior & BindableProperty in Xamarin.Forms
 
13:46
Learn how to add Behaviors and BindableProperty to MVVM apps in order to extend XAML syntax and bind Commands to user controls that does not support binding commands like ListView.
Views: 7485 Houssem Dellai
How to Specify Material Properties with Functions in COMSOL Multiphysics
 
06:39
You can define an Analytic, Interpolation, or Piecewise Function to describe any material property in COMSOL Multiphysics. Defining a function for a material enables the software to approximate the value of the material property through the duration of your simulation. Interpolation Functions are used to fit an expression to data defined at discrete points, such as measurements. Enter the data manually or import it from a file. Next, choose how the function behaves both between and outside of your data points. Analytic Functions are used to implement a variable-dependency to a material, like a temperature and/or pressure-dependent property. You can enter your equation and then specify the arguments within the expression. Piecewise Functions are used to add a function that has different definitions on different intervals. For each interval of values, you can specify a Start and End value as well as the function applicable to that range of values.
Views: 16854 COMSOL
Control Templates In WPF
 
11:02
Hey Guys, Let us learn about the concept of templates in WPF which form a important of displaying data and controls. In this lecture I will talk about control templates and in coming up lectures we will liik into what are data templates in WPF. Thanks and please like subscribe and share.
Views: 19761 DotNetSkoool
Javascript Form Select Change Options Tutorial Dynamic List Elements HTML5
 
16:08
Lesson Code: http://www.developphp.com/video/JavaScript/Form-Select-Change-Dynamic-List-Option-Elements-Tutorial In this Javascript video lesson you will learn how to program dynamic select form list elements. To demonstrate the logic we will show how to change options of a select list based on the selection the user makes from the first list. A web application developer will definitely need to know how to do this when they get into form programming that involves data intake of categories and subcatories from a user.
Views: 206885 Adam Khoury
Dispatcher in WPF
 
19:13
Hey Guys let us learn about Dispatcher in WPF since this class is responsible for handling threading in WPF.
Views: 12893 DotNetSkoool
Buy vs Rent | Which one is Better options
 
10:34
Is Buying a House Better than Renting in India Assume there is a 2 BHK Flat for sale at Kharadi (in Pune - for that matter you can assume your locality). Considering the cost of the flat between 60L to 80L. Assuming 70 L as a total cost of the flat. After US housing loan fall, no bank will give you more than 85% of total cost amount which doesn't even include local taxes from certain banks. Assuming you have taken a loan for 20 years. Here is the calculation. Base payment 15 % = 10.5L (this will rip you off with all your previous savings) Loan amount = 59.5 L EMI per month Rs.59,000 per month Maintenance charges approx 24K Rs per year = 2000 Rs per month Average property Tax per month = 1000-1500 Rs per month - Tax benefit is discount on the Interest amount = 50K per year = 4K per month That also for first few years as most of the EMI goes in interest. - 1 Lac in base amount is any way settled for PF, 80CC and LIC contribution - Total EMI comes to approx Rs 65,000 per month for next 20 years. (Society maintenance, water taxes and corporation tax will increase with inflation). After paying this much money per month. You have to say no to your family for shopping (even after a CTC of 12 Lacs)No holiday trips, no gifts to parents, skip friend's marriage, no new Car for initial few years and lot of cost cutting measures. If you get fired from the company, you are doomed. or what If recession hits. Days are not far for such crisis to hit the market. China market and Greece are examples of it. Hence, total cost of ownership for 20 years = 65,000 X 20 X 12 months + 10.5 L = 1, 66, 50,000 (approx 1.67 crore) What have you got: "Home for 20 years", and after 20 years you will have a 20 years old flat in 20 years old society (dirty and filthy) - After 20 years if the cost of your 2 BHK home is say 2 Cr by market value ( I doubt because it will be very old flat in the middle of crowded city). You make nothing out of it. - Secondly, even if it values so. I doubt how many buyers will be interested in a property ageing 20 years for 2 crores. - We are predicting 20yrs hence. Wasting / suffering our today for future. That too a long term future, we have never seen. -With the rising suicide rate world-wide, who knows something unfortunate happens at our floor and you will end up selling it at a lower price. -With the heavy infrastructure development in Pune and Pune dependency on few lakes for water, I am certain of water shortage in coming years. - Lastly, for Indian's at least buying a house is a emotional decision. What I mean is, even if the house is worth 5 crores tomorrow. House owner will never ever think of selling to book a profit of it to enjoy his life. It's worst that we just boast of investments and businesses but are emotional at heart. Even our share market BSE, NSE run on emotional atyachaar. Let's talk about rented flat If you take the same flat on rent or say next door flat, at present rent for 2 BHK is Rs 14,000 all other things including. - Assuming rent increase at 10% (very unlikely it will be less). Year on year you will pay rent approximately 1.44L, 1.58 L, or 1.74 L , at 20th year you will be paying 1.44 X 1.1^(20-1)= 8.8L Total rent you will pay = 1.44((1-(1.1)^20)/(1-(1.1)) = 82L Benefits 1. You can change home any time, even for small reason like neighbor's wife is hitting on you (I will not leave in that case :P) 2. Better job in Bangalore or US or Mumbai (I just love it... am dreaming of getting a job in Silicon Valley or Wanna to sit in a office near Powai lake :)) 3. Better Job in Yerewada (do you want to manage the traffic in case you buy the flat in Kharadi, already BRTS has increased a lot of trouble on Pune roads). 4. Growing family need a 3 BHK. (Think of future need also) or villa. 5. As your rent grows so will you HRA so more tax benefit? - Apparently rent receipts have more benefit in taxes than a Housing loan. 6. A new cosmopolitan area is coming up in the city which is better than where you stay now ( I would love to stay in Vimannagar than in Dhanori 7. If you move out of the city, finding a tenant is a problem. A tenant who may convert your dream home into filthy home(sounds scary right?) Etc.
Views: 903 The Viral Media
C# WPF UI Tutorials: 09 - User Controls Side Menu Content
 
31:34
Part of a series of tutorials on creating WPF applications in C# Create the start of a Side Menu using a User Control with custom content Source code: https://github.com/angelsix/fasetto-word/tree/85c9454ce22fd2b888cc54b3e3f3a90a2dd82126 Latest code: https://github.com/angelsix/fasetto-word
Views: 61162 AngelSix
Angular component lifecycle hooks
 
13:51
Text version of the video http://csharp-video-tutorials.blogspot.com/2017/08/angular-component-lifecycle-hooks.html Slides http://csharp-video-tutorials.blogspot.com/2017/08/angular-component-lifecycle-hooks_1.html Angular 2 Tutorial playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhWqGD8BuKuX-VTKqlNBj-m6 Angular 2 Text articles and slides http://csharp-video-tutorials.blogspot.com/2017/06/angular-2-tutorial-for-beginners_12.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 Angular component lifecycle hooks. A component has a lifecycle managed by Angular. Angular 1. Creates the component 2. Renders the component 3. Creates and renders the component children 4. Checks when the component data-bound properties change, and 5. Destroys the component before removing it from the DOM To tap into and react when these life cycle events occur, angular offers several lifecycle hooks The 3 most commonly used hooks are ngOnChanges - Executes, every time the value of an input property changes. The hook method receives a SimpleChanges object containing current and previous property values. This is called before ngOnInit. ngOnInit - Executes after the constructor and after ngOnChange hook for the first time. It is most commonly used for component initialisation and retrieving data from a database. ngOnDestroy - Executes just before angular destroys the component and generally used for performing cleanup. There are 3 simple steps to use the Life Cycle Hooks Step 1 : Import the Life Cycle Hook interface. For example, to use ngOnInit() life cycle hook, import OnInit interface. import { OnInit } from '@angular/core'; Step 2 : Make the component class implement the Life Cycle Hook interface, using the implements keyword as shown below. This step is optional, but good to have so you will get editor support and flags errors at compile time if you incorrectly implement the interface method or make any typographical errors. export class SimpleComponent implements OnInit { } Step 3 : Write the implementation code for the life cycle interface method. Each interface has a single hook method whose name is the interface name prefixed with ng. ngOnInit() { console.log('OnInit Life Cycle Hook'); } Let's understand ngOnChanges life cycle hook with a simple example. Here is what we want to do. As soon as the user starts typing into the text box, we want to capture the current and previous value and log it to the browser console. We can very easily achieve this by using the ngOnChanges life cycle hook. ngOnChanges, is called every time the value of an input property of a component changes. So first let's create a SimpleComponent with an input property as shown below. We will continue with the example we worked with in our previous video. Add a new folder in the App folder and name it Others. Add a new TypeScript file to this folder and name it - simple.component.ts. Copy and paste the following code which is commented and self explanatory. // Step 1 : Import OnChanges and SimpleChanges import { Component, Input, OnChanges, SimpleChanges } from '@angular/core'; // The selector "simple" will be used as the directive // where we want to use this component. Notice we are // also using the simpleInput property with interpolation // to display the value it receives from the parent // component @Component({ selector: 'simple', template: `You entered : {{simpleInput}}` }) // Step 2 : Implement OnChanges Life Cycle Hook interface export class SimpleComponent implements OnChanges { // Input property. As and when this property changes // ngOnChanges life cycle hook method is called @Input() simpleInput: string; // Step 3 : Implementation for the hook method // This code logs the current and previous value // to the console. ngOnChanges(changes: SimpleChanges) { for (let propertyName in changes) { let change = changes[propertyName]; let current = JSON.stringify(change.currentValue); let previous = JSON.stringify(change.previousValue); console.log(propertyName + ': currentValue = ' + current + ', previousValue = ' + previous); // The above line can be rewritten using // placeholder syntax as shown below // console.log(`${propertyName}: currentValue // = ${current }, previousValue = ${previous }`); } } }
Views: 85814 kudvenkat
Use Attached Properties for Additional Data Storage
 
03:21
In this how-to video, Peter Bahaa shows how to use attached properties for additional data storage.
Views: 861 DeveloperVideos
Finding Candidate Key | Database Management System
 
04:00
Step by step guideline to proceed with finding candidate key. To ask your doubts on this topic and much more, click on this Direct Link: http://www.techtud.com/video-lecture/lecture-finding-candidate-key IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 207250 Techtud
Spring Tutorial 02 - Understanding Dependency Injection 01 ( problems if you do not use it )
 
04:53
In this tutorial, we will understand the term dependency injection in detail. This part will talk about the problems if you do use a technique like dependency injection (inversion of control). http://www.gontu.org
Views: 118323 gontuseries