How Dependency Injection Containers Work in C#?

Dependency Injection (DI) containers, such as Unity or DryIoc, help manage the creation and lifetime of object dependencies in C#. They facilitate the Inversion of Control (IoC) principle, allowing you to focus on writing clean, maintainable code without worrying about the complexities of instantiating dependencies manually. How DI Containers Work? Registration:  You define which concrete classes should be used to fulfill specific interface contracts. This allows the DI container to know what to instantiate when a class requests a particular dependency. Resolution:  When an instance of a class is requested, the DI container looks at the registered services, resolves the dependencies, and creates the object with the required dependencies injected. Lifetime Management:  The container manages the lifecycle of the dependencies. You can specify whether instances should be singleton (one instance for the entire application), transient (a new instance each time), or scoped (one ...
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Building Your First WPF Application with C#

  • Click on File > New > Project menu option
  • one dialog box will be displayed.
  • here in left panel you have to choose c#.
  • in middle panel you have to choose WPF Application.
  • Give the project a name in the name field and click the OK button. Bydefault two files are created,one is the XAML file which is Mainwindiw.xaml and the other is the CS file which is Mainwindow.cs.
  • In mainwindow.xaml, you will see two sub-windows, one is the design window and the other one is the source window.
  • In WPF application, there are two ways to design an UI for your application. One is to simply drag and drop UI elements from the toolbox to the Design Window. The second way is to design your UI by writing XAML tags .
  • In mainwindow.xaml file, the following XAML tags are written by default.
<Window x: Class="ProjectName.MainWindow" xmlns = "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x = "http://schemas.microsoft.com/winfx/2006/xaml" Title = "MainWindow" Height = "350" Width = "604"> <Grid> </Grid> </Window>
  • Let’s go to the toolbox and drag a TextBlock to the design window inside grid.
  • When you look at the source window, you will see that Visual Studio has generated the XAML code of the TextBlock for you.
  • Now change Text property to Welcome to WPF World.
  • <TextBlock Text="Welcome to WPF World."/>
  • now if you run this program you will get the Welcome to WPF World. on your application.

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