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answers:

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I have a RadComboBox that i have bound like shown below

<telerik1:RadComboBox Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="3" Margin="5,2" ItemsSource="{Binding RepTypes}" DisplayMemberPath="Path=TypeName"  SelectedValuePath="Value"  SelectedItem="{Binding RepType, Mode=TwoWay}" >

                    </telerik1:RadComboBox>

When i select an Item I catch the Property Changed event, but basically the selection in the combo box stays blank.

What am i doing wrong?

Ok i made it so that it shows up now.. But i don't understand why... Or how to change it so it works for me in all cases...

           <telerik1:RadComboBox Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="3" Margin="5,2" ItemsSource="{Binding RepTypes}" SelectedValuePath="Value"  SelectedItem="{Binding RepType, Mode=TwoWay}"  >

            </telerik1:RadComboBox>

Thats what works... the Biggest difference was. I had to name a field to "Name" and then bind it and take out the DisplayMemberPath="Path=ReportName"

If that is the case then how do i tell the control what Field to Display in the dropdown?