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ContextMenuTemplate should contain a RadContextMenu as root element - Issue

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Docking

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answered on 30 Jun 2015, 10:30 AM

raddock_issue.jpg

Hi,

Xaml shows the error "ContextMenuTemplate should contain a RadContextMenu as root element" When I mouse over on the telerik:RadDocumentPane code. Attached the screenshot for your reference. Can you please explain in what scenario this error occur and is there any workaround to get out of this issue.

I am using Visual studio 2013 and Blend 2013. The style and theme is not specifically mentioned, it is taking the default. The page design is not showing up for this RadDocking control.

Please find the xaml below:

<UserControl x:Class="View.paView"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="1000" Background ="White">

<UserControl.Resources>

</UserControl.Resources>

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

<RowDefinition Height="*" />

</Grid.RowDefinitions>

<Grid Margin="0,10,0,0" Grid.Row="1">

<Border Grid.Row="1">

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

<RowDefinition Height="*" />

</Grid.RowDefinitions>

<StackPanel Grid.Row="0" HorizontalAlignment="Right" Orientation="Horizontal" VerticalAlignment="Top" Margin="0 0 0 0" >

<StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Margin="10 0 10 0">

<telerik:RadButton x:Name="btnExport" Margin="0,0,10,5" Command="{Binding GenerateExcelCommand}"

Cursor="Hand" Width="30" Height="27">

<telerik:RadButton.Content>

<StackPanel Orientation="Horizontal">

<Image Source="/Images/icon_export_to_excel.png" Width="16" Height="16" ToolTip="Export to excel"></Image>

</StackPanel>

</telerik:RadButton.Content>

</telerik:RadButton>

</StackPanel>

<telerik:RadDocking x:Name="radDocking1"

Grid.Row="1" Margin="0 0 0 10"

BorderThickness="0"

Padding="0" >

<telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer>

<telerik:RadPaneGroup>

<telerik:RadDocumentPane Title="" Visibility="Collapsed" PaneHeaderVisibility="Collapsed" CanUserClose="False">

<telerik:RadDocumentPane.Content>

<Grid>

<TextBlock Text="test" />

</Grid>

</telerik:RadDocumentPane.Content>

</telerik:RadDocumentPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking.DocumentHost>

<telerik:RadSplitContainer Grid.Column="1" Grid.Row="0" MinWidth="600" Width="Auto" InitialPosition="DockedRight">

<telerik:RadPaneGroup >

<telerik:RadPane Header="PNR Snapshot" IsPinned="{Binding IsCrypticPinned, Mode=TwoWay}" ScrollViewer.CanContentScroll="True" CanUserClose="False" CanFloat="False" >

<Grid >

<TextBlock Text="test" />

</Grid>

</telerik:RadPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

</Grid>

</Border>

</Grid>

</UserControl>

answered on 30 Jun 2015, 12:53 PM

SampleProject.zip

SampleVideo.zip

Hello Rabeek,

I wasn't able to reproduce the described problem. I've attached a sample video how the designer looks at our side with the provided user control. Also, I've provided a runnable project(with trial binaries) which is used in the video.

What I can suggest you would be try cleaning/rebuilding the solution, deleting bin and obj folders of the projects and you can also try removing the ShadowCache of the designer. In order to achieve this, you should do the following:
1) Close all visual studio instances.
2) Go to C:\Users\<username>\AppData\Local\Microsoft\VisualStudio\<visual_studio_version,for_example_12.0>\Designer\ShadowCache and delete the folders there - this is the cache of VisualStudio's designer.

After that, you need to rebuild the solution.

I hope this helps.

Regards,
Masha
Telerik

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answered on 01 Jul 2015, 08:26 AM

SampleProject.zip

Hi Rabeek,

I've tested the project with the 2012.3.1129.40 assemblies and the VisualStudio2013 designer works without problems. I've attached the project with included 2012.3.1129.40 trial binaries. Do you reproduce the problem with this assemblies version? Do you use implicit styles (it yes, which theme are you using) or default XAML binaries?

If you can modify the project with the issue being reproduced would also be very helpful.

Regards,
Masha
Telerik

answered on 03 Feb 2016, 01:53 PM

FYI: I have been performing development on the same Solution for almost a year now, and today I started getting this same issue. I know your going to say .. something must have changed, however, I have not imported any new objects or controls into my application. I am using Telerik controls version 2014.3.1202.45. I created this Docking User Control about 2 weeks ago, and today, it is yelling at me. One note: approx. 1 week ago I did add an InstallShield project to create an installation package -- not sure how these 2 could be connected.