ScrollBars in VirtualizingWrapPanel

[Brent]

How do I get scrollbars to appear when using a virtualizingwrappanel?

I have a listbox and an itemspanel defined as

<Setter Property="ItemsPanel">
    <Setter.Value>
        <ItemsPanelTemplate>
            <telerik:VirtualizingWrapPanel ItemWidth="195" ItemHeight="88" IsItemsHost="True"/>
        </ItemsPanelTemplate>
    </Setter.Value>
</Setter>

and my listbox defined as

<ListBox ItemsSource="{Binding}"  TextSearch.TextPath="Name" Name="lstFiles" HorizontalContentAlignment="Left" Padding="3" Background="{x:Null}" BorderBrush="{x:Null}" SelectionMode="Single" Margin="0,75,0,0" >
    <ListBox.GroupStyle>
        <GroupStyle HeaderTemplate="{StaticResource groupTemplate}" />
    </ListBox.GroupStyle>
</ListBox>

No scrollbars ever appear however.

[Maya]

Hi Brent,

Please take a look at our demos for a reference. Furthermore, I am sending you the sample project I used for testing the issue you described. Could you take a look at it and let me know how it differs from your scenario ? 

Kind regards,
Maya
the Telerik team

[Brent]

I took a look at the demos which show a scrollbar,  the only parameter I see that seems related is ScrollStep.  I tried adding this but it did not do anything.  The sample you sent would be sufficient to show what needs changed.  when I run the attached sample I do not get scrollbars initially or when I resize the form to a smaller size.

Brent

[Maya]

Hi Brent,

I have tried to reproduce the issue, but unfortunately still without any success. Could you take a look at this small video illustrating my attempt ? Is there anything more specific that I need to do in order to get the same behavior as yours ?  

Regards,
Maya
the Telerik team

[Brent]

I see it working on your end and I also have scrollbars with your example. I have a demo where it is not working but cannot attach a zip how do I get you my sample?

[Yordanka]

Hi Brent,

You can open a support ticket and attach you application there.
 
Greetings,
Yordanka
the Telerik team

[Brent]

Thanks, I have submitted support ticket #498193 for this.

[Vlad]

Hi,

 I've checked your project and I've noticed that the panel is used in a grouped ListBox which will measure with infinity height and width in this case. You will not get scrollbars in case of infinity. The standard WPF WrapPanel will not even wrap in this case - our VirtualizingWrapPanel will wrap your items but still you will not get scrollbars. 

Greetings,
Vlad
the Telerik team