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ReorderRow drop is never enabled

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GridView

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

Steve asked on 30 Sep 2013, 08:31 PM

Hello,
I believe I've copied all the necessary code and settings from the ReorderRows example; however the drop is never enabled. I'm using the DropIndicationDetails and RowReorderBehavior classes with no changes. The code in my UserControl is as follows (only pertinent snippet is included)...

<UserControl.Resources>

<ResourceDictionary>

<ResourceDictionary.MergedDictionaries>

<ResourceDictionary Source="/AM.Core;Component/UI/ResourceDictionaries/UID

<ResourceDictionary Source="/AM.Core;Component/UI/ResourceDictionaries/Dat

</ResourceDictionary.MergedDictionaries>

<localProperties:Settings x:Key="Settings" />

<Style TargetType="telerik:GridViewRow"

x:Key="DraggedRowStyle"

BasedOn="{StaticResource {x:Type telerik:GridViewRow}}">

<Setter Property="telerik:DragDropManager.AllowDrag"

Value="True" />

<Setter Property="AllowDrop"

Value="True" />

</Style>

</ResourceDictionary>

</UserControl.Resources>

<Grid x:Name="LayoutRoot">

<telerik:RadGridView x:Name="AccountGroupsGridView"

HorizontalAlignment="Stretch"

VerticalAlignment="Stretch"

Width="{Binding ElementName=LayoutRoot, Path=ActualWidth}"

Height="{Binding ElementName=LayoutRoot, Path=ActualHeight}"

ScrollViewer.VerticalScrollBarVisibility="Auto"

ScrollViewer.HorizontalScrollBarVisibility="Auto"

IsSynchronizedWithCurrentItem="True"

AutoGenerateColumns="False"

VerticalGridLinesBrush="Transparent"

AlternationCount="2"

AlternateRowBackground="AliceBlue"

CanUserDeleteRows="True"

CanUserInsertRows="True"

ColumnWidth="*"

ShowGroupPanel="False"

RowIndicatorVisibility="Collapsed"

KeyboardNavigation.DirectionalNavigation="Cycle"

KeyboardNavigation.TabNavigation="Cycle"

ItemsSource="{Binding Path=AccountGroups}"

RowStyle="{StaticResource DraggedRowStyle}"

AllowDrop="True"

amUI:RowReorderBehavior.IsEnabled="True">

<telerik:RadGridView.Resources>

<DataTemplate x:Key="DraggedItemTemplate">

<StackPanel>

<StackPanel Orientation="Horizontal">

<TextBlock Text="Dragging:" />

<TextBlock Text="{Binding CurrentDraggedItem}"

FontWeight="Bold" />

</StackPanel>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding CurrentDropPosition}"

FontWeight="Bold"

MinWidth="45" />

<TextBlock Text=", ("

Foreground="Gray" />

<TextBlock Text="{Binding CurrentDraggedOverItem}" />

<TextBlock Text=")"

Foreground="Gray" />

</StackPanel>

</DataTemplate>

</telerik:RadGridView.Resources>

Any help would be much appreciated.
Thanks in advance,
Steve

7 Answers, 1 is accepted

answered on 01 Oct 2013, 07:04 AM

Hello Steve,

Actually, the snippet you posted does not seem to have anything wrong.
Furthermore, I am not sure I understand the case correctly.
What do you mean by however the drop is never enabled. Does this relate to the whole behavior, or just the Drop functionality? Can you get the Drag started, or nothing is actually working?

I am looking forward to your response!

Regards,
Nik
Telerik

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answered on 13 Oct 2013, 04:04 PM

I have exact same problem. Drop indicator is a crossed circle.
my GridView:

<telerikGridView:RadGridView Grid.Row="2"

ItemsSource="{Binding SelectedItems, Mode=TwoWay}"

IsFilteringAllowed="False"

Height="230"

Width="Auto"

IsReadOnly="True"

AllowDrop="True"

DataLoadMode="Synchronous"

SelectionMode="Extended"

ScrollMode="RealTime"

AutoGenerateColumns="True"

CanUserResizeColumns="False"

CanUserFreezeColumns="False"

CanUserReorderColumns="False"

RowIndicatorVisibility="Collapsed"

ShowGroupPanel="False"

CanUserSortColumns="True"

RowStyle="{StaticResource DraggedRowStyle}"

behaviors:RowReorderBehavior.IsEnabled="True"

controls:ScrollingSettingsBehavior.IsEnabled="True"

controls:ScrollingSettingsBehavior.ScrollAreaPadding="30"

controls:ScrollingSettingsBehavior.ScrollStep="24"

controls:ScrollingSettingsBehavior.ScrollStepTime="00:00:00.05">

<telerikGridView:RadGridView.Resources>

<DataTemplate x:Key="DraggedItemTemplate" DataType="viewModels:DropIndicationDetailsViewModel">

<StackPanel>

<StackPanel Orientation="Horizontal">

<TextBlock Text="Dragging:" />

<TextBlock Text="{Binding CurrentDraggedItem}"

FontWeight="Bold" />

</StackPanel>

<StackPanel Orientation="Horizontal">

<TextBlock Text="{Binding CurrentDropPosition}"

FontWeight="Bold"

MinWidth="45" />

<TextBlock Text=", ("

Foreground="Gray" />

<TextBlock Text="{Binding CurrentDraggedOverItem}" />

<TextBlock Text=")"

Foreground="Gray" />

</StackPanel>

</DataTemplate>

</telerikGridView:RadGridView.Resources>

</telerikGridView:RadGridView>