What is the architecture of .NET win form applications?

C# Version

WinForm Architecture As stated earlier, .NET provides WinForm and other controls through base classes in the System.Windows.Forms namespace. The class System.Windows.Forms.Form is the base class of all WinForms in .NET. In order to design a windows application, we need: 1. Create a Windows Application project in Visual Studio.NET or add references to System.Windows.Forms and System.Drawing to your current project. If you are not using Visual Studio at all, use /reference option of the command line compiler to add these assemblies. 2. Write a new class to represent the WinForm and derive it from System.Windows.Forms.Form class as

	class MyForm : System.Windows.Form
	{
		...
	}

3. Instantiate various controls, set their appropriate properties and add these to MyForm’s Controls collection. 4. Write another class containing the Main() method. In the Main() method, call the System.Application.Run() method by supplying it an instance of MyForm.

	class Test
	{
		static void Main()
		{
			Application.Run(new MyForm());
		}
	}

The Application.Run() method registers your form as a windows application in the operating system so that it may receive event messages from the Windows Operating System.

VB.NET Version

WinForm Architecture As stated earlier, .NET provides the WinForm and other controls through base classes in the System.Windows.Forms namespace. The class System.Windows.Forms.Form is the base class of all WinForms in .NET. In order to design a windows application, we need to: 1.Create a Windows Application project in Visual Studio.NET, or add references to System.Windows.Forms and System.Drawing to your current project. If you are not using Visual Studio at all, use the /reference option of the command line compiler to add these assemblies. 2. Write a new class to represent the WinForm and derive it from the

System.Windows.Forms.Form class: 
Public Class MyForm
    Inherits System.Windows.Forms.Form 
    …
End Class

3. Instantiate various controls, set their appropriate properties and add these to MyForm's Controls collection. 4. Write another class containing the Main() method. In the Main() method, call the System.Application.Run() method, supplying it with an instance of

MyForm. 
Class Test
    Public Sub Main()
        Application.Run(New MyForm())
    End Sub
End Class

The Application.Run() method registers your form as a windows application in the operating system so that it may receive event messages from the Windows Operating System.

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