Binding IsSelected with virtualization

[Bob]

Hi,

I've bound my model's IsSelected property to the TreeListViewRow's IsSelected property. The problem is that if I have a long list of items, the user can select the first, then scroll down to the bottom and Shift+Click the last to select them all. But only some of my model objects get their IsSelected flag set. It's mostly just the model objects that are visible. I suspect the problem is caused by virtualization being turned on. There's no TreeListViewRow for most of the items, so their IsSelected flags don't get set.

So how do I get my IsSelected flag set for virtualized rows?

My current binding is:

<Style TargetType="{x:Type telerik:TreeListViewRow">

 

    <Setter Property="IsSelected" Value="{Binding Path=IsSelected, Mode=TwoWay}"/>

 

</Style>

Thanks,
   Bob

[Maya]

Hi Bob,

Indeed, due to the virtualization you will be able to work only with the visible visual items. What I could suggest is to work directly with the data items and bind the SelectedItem property of RadTreeListView.
 

Greetings,
Maya
the Telerik team