To use BackgroundWorker component in a WPF application is as easy as using it in a WinForm 2.0 application. The only thing you don't get is the designer support, but we don't need that anyway.

In a WPF application, to create a BackgroundWorker enabled class (or window or control) do following -

• Import System.ComponentModel namespace
  
• Add BackgroundWorker component to your class by declaring it in your class as -
  
  

  Visual Basic-Code: Declaring BackgroundWorker component

  	Imports System.ComponentModel
  	
  	Class Test
  	    
  	     Private WithEvents MyBackgroundWorker As New BackgroundWorker 
  	
  	     '... other code ...'
  	
  	End Class
  	

• Configure its properties in the class initialization method (contructor or loaded event).  
  
  

  Visual Basic-Code: Initializing BackgroundWorker

  	Sub New()
  	    MyBackgroundWorker.WorkerSupportsCancellation = False
  	    ' enable / disable Cancellation support
  	    MyBackgroundWorker.WorkerReportsProgress = False
  	    ' enable / disable Progress Reporting support 
  	    ' etc.
  	End Sub
  	

  
  
• Now hook BackgroundWorker events -
  
  

  Visual Basic-Code: Hooking BackgroundWorker Events

  	Private Sub MyBackgroundWorker_DoWork(ByVal sender As Object, ByVal e As DoWorkEventArgs) Handles MyBackgroundWorker.DoWork 
  	
  	        ' your method call / processing here 
  	  
  	End Sub
  	

  
  
• Similalry hook up other events as per your need. If you are using Visual Studio, you can select the same from Control/Event dropdowns in the code view.

Yeah, it's that easy!

http://msdn2.microsoft.com/en-us/library/ms750559.aspx