[Solved] Strange DataContext for GridViewRowItem

[Andreas]

Hi,

I have a RadGridView defined as follows:

<grid:RadGridView x:Name="externalListGrid"
 HorizontalAlignment="Stretch"
 VerticalAlignment="Stretch"
 AutoGenerateColumns="False"
 IsReadOnly="True"
 ItemsSource="{Binding Rows}"
 SelectionMode="{Binding SelectionMode}"
 ShowGroupPanel="False"
 IsSynchronizedWithCurrentItem="True" >

 <i:Interaction.Behaviors>
  <behaviors:DataGridRowDoubleClickBehavior/>
 </i:Interaction.Behaviors>

</grid:RadGridView>

In the Behavior I react on the RowLoaded event of the grid. RowLoadedEventArgs contain a Row which should be of type GridViewRowItem. But actually it returns a GridViewHeaderRow with a strange DataContext. Namely the context of the Grid (in my case some ViewModel) and not the actual context of the row. So I have the problem that there is no connection to the actual row which was loaded.

Is this the expected bahavior?

Kind regards,
Stefan

[Vlad]

Hello Stefan,

 Indeed RowLoaded will be fired for the header row as well and the DataContext of the header row is not related to data-items. 

Regards,
Vlad
the Telerik team

[Andreas]

Hi Vlad,

I wanted to use the RowLoaded-Event to set some rows initially selected depending on a IsSelected-Flag in the object which is the DataContext of the row. What is the best way to do so instead?

Thanks,
Stefan

[Pavel Pavlov]

Hi Stefan,

Your approach is ok . You will just need to check for the case when the header row raises the event. Usually this would be only the first call of the handler. The next ones will be for the 'real ' rows . So a single if statement , to check if this is a header row -> do nothing , else -> set ischecked...should do the trick.

Best wishes,
Pavel Pavlov
the Telerik team

[Andreas]

Hi,

thanks for your help. Works great.

Stefan