Binding ComboBox inside CellEditTemplate

[Pablo Tola]

Hello,

I have a usercontrol that has a gridview in it binded to an observablecollection defined as a property of the usercontrol.
I need a 3 level cascading comboboxes on 3 columns, and I need to bind them to either properties or methods defined inside the usercontrol code behind class.
I've tried several things but I think I'm missing something, I'm kind of new to how binding works on wpf.
I'm trying to set the binding like this:

<telerik:GridViewDataColumn
   Header="Questions"
   DataMemberBinding="{Binding Operation, Mode=TwoWay}">
   <telerik:GridViewDataColumn.CellEditTemplate>
      <DataTemplate>
         <telerik:RadComboBox DisplayMemberPath="operation" SelectedValuePath="id"
         ItemsSource="{Binding Operations, Mode=TwoWay}" />
      </DataTemplate>
   </telerik:GridViewDataColumn.CellEditTemplate>
</telerik:GridViewDataColumn>

Where Operations is a Property of the UserControl, but I think it's trying to find Operations as a property of the Databound Object.

Any help would be appreciated.

[Yavor Georgiev]

Hi Pablo Tola,

 You need to explicitly reference the usercontrol element in the combobox's binding declaration like so:

{Binding Operations, ElementName=myUserControlName}

Regards,
Yavor Georgiev
the Telerik team

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