ObservableCollection Generic Class in .Net 2.0

Microsoft intrdouced a new collection class, in .Net which give you notifications(events), while items getting added, removed and refreshed. You can get more information about this class in this link ObservableCollection Generic Class. As per the MSDN documentation this class is available in System.Collections.ObjectModel,but I am unable to find this class in VS 2005 in .Net 2.0. So I created a class, to give me almost same functionality


Public Class ObserverCollection(Of T)
Inherits System.Collections.Generic.List(Of T)
Public Event ItemAdded(ByVal o As T)
Public Event ItemRemoved()
Public Overloads Sub Add(ByVal Value As T)
MyBase.Add(Value)
RaiseEvent ItemAdded(Value)
End Sub
Public Overloads Sub Remove(ByVal Value As T)
MyBase.Remove(Value)
RaiseEvent ItemRemoved()
End Sub
End Class

It is a simple implementation, where I am using the System.Collections.Generic.List(Of T) as my base class, and I am overloading the methods. In the overloaded methods, I am raising the events.

Update : This class not available on .Net Framework 2.0
Update 2: This class will available on Visual Studio 2008, only after adding reference to the WindowBase.dll, normally it will not come. You need to add reference explicitly

This entry was posted in .Net. Bookmark the permalink.

0 Responses to ObservableCollection Generic Class in .Net 2.0

  1. Jonas says:

    ObservableCollection is new to .NET 3.0. It is not available in 2.0. Actually at the end of the MSDN documentation page it says “Supported in: 3.0″

Leave a Reply

Your email address will not be published. Required fields are marked *

*


*

You may use these HTML tags and attributes: <a href="" title="" rel=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>