ComboBox in CellEditTemplate

[Pablo Tola]

Hello,

I'm using the combobox in this example inside a grid as a celledittemplate:

http://www.telerik.com/community/forums/silverlight/combobox/multiselect-option-in-combo-box.aspx

I'm now stuck because I want to bind the comma separated values to the column dataitem, it is a string type.
I'm kind of new to wpf binding and I've tried a lot of things to get this done, but cannot achieve my goal.
please help.

Here's the column definition, Choices is the property I need to bind the results of the checked items.

<telerik:GridViewDataColumn Header="Choices"
   DataMemberBinding="{Binding Choices, Mode=TwoWay}">
   <telerik:GridViewDataColumn.CellEditTemplate>
      <DataTemplate>
         <telerik:RadComboBox x:Name="ChoicesCombo"
            Loaded="OnChoicesComboBoxLoaded" SelectedIndex="0"
            SelectedValue="{Binding Choices, Mode=TwoWay}" >
            <telerik:RadComboBox.ItemTemplate>
               <DataTemplate>
                  <CheckBox IsChecked="{Binding IsChecked, Mode=TwoWay}"
                     Content="{Binding Text}" />
               </DataTemplate>
            </telerik:RadComboBox.ItemTemplate>
            <telerik:RadComboBox.SelectionBoxTemplate>
               <DataTemplate>
                  <TextBlock Text="{Binding Owner.CheckedItems, Converter={StaticResource ValueConverter}}" />
               </DataTemplate>
            </telerik:RadComboBox.SelectionBoxTemplate>
         </telerik:RadComboBox>
      </DataTemplate>
   </telerik:GridViewDataColumn.CellEditTemplate>
</telerik:GridViewDataColumn>

[Pavel Pavlov]

Hi Pablo Tola,

Please use the attached sample as a starting point.

Regards,
Pavel Pavlov
the Telerik team

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[Pablo Tola]

Thanks for the sample, I ended up creating a user control and exposing two dependency properties, ItemsSource and SelectedItems, that way I can reuse it anywhere I want to.

Thanks again.

[Chango]

please can up this example on mvvm pattern?