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Drag and drop of TreeView items inside RadDropDownButton

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DragAndDrop

This is a migrated thread and some comments may be shown as answers.

Gert asked on 22 Jun 2020, 07:02 AM

Hi,

I have a RadTreeView inside RadDropDownButton.DropDownContent.

What I want to achive is to reorder TreeView Items inside the dropdowncontent. I testet my behaviour having only a TreeView - this works. Now when I put the TreeView in the RadDropDownButton.DropDownContent, dragging does not work any more on the TreeView.

<telerik:RadDropDownButton

Height="26"

AutoOpenDelay="0:0:0.0"

Content="Click"

IsOpen="True">

<telerik:RadDropDownButton.DropDownContent>

<telerik:RadTreeView

x:Name="xTreeView"

Margin="8"

IsDragDropEnabled="True"

ItemTemplate="{StaticResource League}"

ItemsSource="{Binding Source={StaticResource DataSource}, Path=LeagueObjects}" />

</telerik:RadDropDownButton.DropDownContent>

</telerik:RadDropDownButton>

2 Answers, 1 is accepted

Accepted

answered on 25 Jun 2020, 06:44 AM

Hi Gert,

Thank you for the provided code snippet.

I was able to reproduce it. The problem comes from the fact that when the RadTreeView is placed inside the RadDropDownButton-DropDownContent, the items do not catch the drag operation. You can easily fix this by setting the telerik:DragDropManager.AllowCapturedDrag property. You can set it through implicit style.

<Window.Resources>
    <Style TargetType="telerik:RadTreeViewItem">
        <Setter Property="telerik:DragDropManager.AllowCapturedDrag" Value="True" />
    </Style>
</Window.Resources>

Regards,
Dinko
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