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INotifyPropertyChanged w/ ADO.NET Entity and RadGridView WPF vb.net

Posted on 2010-11-11
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Last Modified: 2012-05-10
Hi,

I am using an ADO.NET Entity of my SQL Server database as the business object for the itemsource of a Telerik RadGridView in WPF (vb).  How can I implement INotifyPropertyChanged so that the grid can maintain up to date data?  
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Question by:ccwestbrook
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x77 earned 2000 total points
ID: 34114307
Implemnt the INotifyPropertyChanged is easy

You add the Implements clause to your class:

Friend Class Rgra
    Implements INotifyPropertyChanged


This add a Event to your Class

    Public Event PropertyChanged As PropertyChangedEventHandler _
        Implements INotifyPropertyChanged.PropertyChanged


You can then Raise the event on each Set Property

     Public Property mLeft() As Double
        Get
            Return _mLeft
        End Get
        Set(ByVal value As Double)
            _mLeft = value
           RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("mLeft"))
        End Set
    End Property


But note that you are using  a String "mLeft" to do it.
You can read an excelent article to avoid that.

http://www.deanchalk.me.uk/post/WPF-e28093-Easy-INotifyPropertyChanged-Via-DynamicObject-Proxy.aspx
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Author Comment

by:ccwestbrook
ID: 34114621
Thanks.  The problem I have is the ADO.NET Entity is an .edmx xml file, not a .vb class file.  I read that INotifyPropertChanged can be used for it but I don't see how.  
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