I've put the context menu inside a data grid cell, and sometimes it is positioned incorrectly in the top left corner of the usercontrol containing the datagrid. I've uploaded a sample project demonstrating the behaviour. It is the blue rectangles in the datagrid that open the menu. You might have to try several times before the problem occurs.

http://cid-cc43a90a79374ebd.skydrive.live.com/self.aspx/Public/SilverlightApplication13.zip

Placement="Bottom" works fine, I'll go with that. There is one small thing I noticed, though: When the "opener" element is positioned at the far right of the browser window the context menu doesn't adjust its position correctly. Ideally it should move to the left just enough to make the entire menu visible. The funny thing is that it adjusts itself correctly if I click the "opener" element a second time while the menu is still visible. Is this a problem you're aware of, or would you like me to post some screenshots?

Hello Henrik,

I am happy that the Placement property works for you.

It seems we have one more thing to fix in the context menu :).

Thanks once again for the great feedback!

Kind regards,
Miroslav
the Telerik team

I have version 2009.1.423.1020 and looks like the positioning bug is still there but I am not sure if this is the same bug. Considering the following XAML:

<

 

UserControl xmlns:telerikNavigation="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Navigation" x:Class="ContextMenuTest.Page"  

 

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

 

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

 

Width="400" Height="300">

 

<Grid x:Name="LayoutRoot" Background="White">

 

 

<Rectangle x:Name="_rect" Fill="LightGray" Width="388" Height="307" HorizontalAlignment="Center"  

 

                    VerticalAlignment="Center">

     

<telerikNavigation:RadContextMenu.ContextMenu>

 

         

<telerikNavigation:RadContextMenu x:Name="_contextMenu1" EventName="MouseLeftButtonDown">  

 

            <telerikNavigation:RadMenuItem Header="Option1" x:Name="Option1" Click="ContextMenuItem_Click" />  

 

            <telerikNavigation:RadMenuItem Header="Option2" x:Name="Option2" Click="ContextMenuItem_Click" />

 

         </telerikNavigation:RadContextMenu>

 

    </telerikNavigation:RadContextMenu.ContextMenu>

 

</Rectangle>

 

 

</Grid>  

</

 

UserControl>

 

 

 

 

 

If you click in the rectangle the menu will pop-up fine, but if without taking any action in the menu, you move the mouse and go click somewhere else the menu just disappears without appearing in the new mouse position. Then if *without moving the mouse pointer* click again on the same location the menu will pop-up again, but at the location where it was at the first time. In other words, if you make the context menu disappear by clicking somewhere else and then click again on the smae point, the menu will keep re-appearing ion its original location.

Hi D. Omar,

I fixed the positioning bug you reported. The fix will be available in the upcoming internal build this friday.

All the best,
Valeri Hristov
the Telerik team

Thank you!