Drag and Drop within ListBox - no indicator when dropping into last position?

[Steve]

I am trying to get drag and drop within a list box working.  With the following XAML, I don't see the drop indicator when attempting to drop the item below the last item, yet the drop still works...

<UserControl.Resources>

        <ListBoxDragReorderWpf:TemplateViewModel x:Key="TemplateViewModel"/>

        <DataTemplate x:Key="RadListBoxItemTemplate">
            <TextBlock Text="{Binding Name}"/>
        </DataTemplate>

        <Style x:Key="RadListBoxContainerStyle" TargetType="{x:Type telerik:RadListBoxItem}">
            <Setter Property="telerik:DragDropManager.AllowCapturedDrag" Value="True"/>
        </Style>

        <Style x:Key="RadListBoxStyle"
               TargetType="{x:Type telerik:RadListBox}">
            <Setter Property="ItemContainerStyle" Value="{StaticResource RadListBoxContainerStyle}"/>
            <Setter Property="ItemTemplate" Value="{StaticResource RadListBoxItemTemplate}"/>
        </Style>

    </UserControl.Resources>

    <Grid DataContext="{StaticResource TemplateViewModel}">

        <telerik:RadListBox ItemsSource="{Binding Pages}"
                            Style="{StaticResource RadListBoxStyle}"
                            Width="100"
                            Height="200">
            <telerik:RadListBox.DragDropBehavior>
                <telerik:ListBoxDragDropBehavior/>
            </telerik:RadListBox.DragDropBehavior>
            <telerik:RadListBox.DragVisualProvider>
                <telerik:ScreenshotDragVisualProvider />
            </telerik:RadListBox.DragVisualProvider>
            <telerik:RadListBox.DropVisualProvider>
                <telerik:LinearDropVisualProvider />
            </telerik:RadListBox.DropVisualProvider>
        </telerik:RadListBox>

    </Grid>

[Kalin]

Hello Steve,

We are aware of this behavior and it has already been logged in our public issue tracking system, you can track its status on the following link:
http://www.telerik.com/support/pits.aspx#/details/Issue=15320

Part of logged issue is the invisible horizontal line after the last item when dragging. When the ListBox is inside of a Grid it is completely invisible, but when it is inside of StackPanel the line is visible but may appear a little bit lower than should be. So as a work-around I would suggest that you put the ListBox inside StackPanel (I've tested that with the provided code and worked as expected).

Hope this will help you.

Regards,
Kalin
Telerik

[Ian]

Hi Kalin,

It seems that this issue still appears in 2014.1.331.45. Any update on this issue? I couldn't get any information from the public issue tracking system link above - it just goes to the main Support page.

Cheers,
Ian

[Kalin]

Hi Ian,

This issue has been recently fixed. The fix is available with the latest internal build, so you can download it and test it.

Hope this helps.

Regards,
Kalin
Telerik

 

 

[Ian]

Thanks Kalin,

I will do. Any word on when the next official release will be available?

Cheers,
Ian

[Kalin]

Hello Ian,

The next official release should be available at the end of June.

If you have any other questions let us know.

Regards,
Kalin
Telerik