2 Context Menu Icon Issues

2 posts, 0 answers
  1. Richard
    Richard avatar
    72 posts
    Member since:
    Feb 2009

    Posted 18 Sep 2011 Link to this post

    I'm having two isses with the Context Menu at the moment that I hope you can help with.. 

    Scenario 1
    A GridView with Context Menu. The Context menu has 5 items each with an ItemTemplate that is a HierarchicalDataTemplate, bound to a ViewModel and populated via a web service. 
    With Icons on the top level context menu items. 
    If I right click immediately after the grid as loaded I consistently get a System.Windows.Markup.XamlParseException.  If I wait a second or two after the grid has loaded I do not get this error. 
    Without Icons on the top level context menu items.
    If I right click immediately after the grid as loaded it works every time.

    <telerik:RadMenuItem Header="Add To Blueprint"
        ItemsSource="{Binding BlueprintContextMenuItems}"
        ItemTemplate="{StaticResource BlueprintContextMenuTemplate}" >
            <Image Source="/TestApp;component/Assets/Icons/Blueprint/Blueprint_32x32.png" />

    Scenario 2
    I have a RadMenu consisting of RadMenuItems, these items are built from a HierarchicalDataTemplate. I have a context meun on some of these items with icons. The icons do not show up when the Context Menu is displayed. However, if I create a “dummy” copy of the image in xmal at the bottom of the page , ie.  <Image Source="….Img.png"  Visibility="Collapsed"/> the icons in the context menu are displayed. As if this referace to the image makes it available to the menu where as it’s own RadMenuItem.Icon does not. 
    Can I also just say I love these controls and the HierarchicalDataTemplate is just wonderful. :)

  2. Konstantina
    Konstantina avatar
    2332 posts

    Posted 23 Sep 2011 Link to this post

    Hello Richard,

    RadMenu/RadContextMenu indeed have this limitation which prevents their items from updating its template correctly once they are loaded. I am not sure if this is fixable at all, but should be relatively easy to workaround - you just need to set ItemsSource on the ContextMenu after it is entirely populated. I suppose this limitation is causing also the wrong loading of the Icons.

    Could you please try this approach and let us know if that fixed the issue.

    the Telerik team
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