Is it possible to bind a radrichtextbox command to it's context menu?

3 posts, 1 answers
  1. Michael
    Michael avatar
    15 posts
    Member since:
    Sep 2010

    Posted 15 Oct 2010 Link to this post

    I've been working on a text editor for a website using the radrichtextbox.  I have the radrichtextboxribbonui in place and working spectacularly, as well as a radMenu, that is working well.  I bound the cut, copy, and paste buttons in the radmenu to those of the radrichtextbox with the xaml code:
    <telerikNavigation:RadMenuItem x:Name="_cutMenu" DataContext="{Binding ElementName=_rrtbMessage}" Command="{Binding CutCommand}" Header="Cut" />
    <telerikNavigation:RadMenuItem x:Name="_copyMenu" DataContext="{Binding ElementName=_rrtbMessage}" Command="{Binding CopyCommand}" Header="Copy" />
    <telerikNavigation:RadMenuItem x:Name="_pasteMenu" DataContext="{Binding ElementName=_rrtbMessage}" Command="{Binding PasteCommand}" Header="Paste" />

    And that works well.  I tried to do the same thing with a context menu, and non of the buttons seem to work.  They simply respond as if they had no command.  The code I've written for that is:
    <telerikDocuments:RadRichTextBox x:Name="_rrtbMessage" HorizontalAlignment="Stretch" Margin="10,35,10,10" VerticalAlignment="Stretch">
             <dHTML:HtmlDataProvider x:Key="HtmlDataProvider" RichTextBox="{ Binding ElementName=_rrtbMessage}" Html="{Binding MessageText, Mode=TwoWay}" SetupDocument="SetupMessage" />
    <telerikNavigation:RadContextMenu x:Name="_menuRtbFormat">
                            <telerikNavigation:RadMenuItem x:Name="_cutContextMenu" DataContext="{Binding ElementName=_rrtfMessage}" Command="{Binding CutCommand}" Header="Cut" />
                            <telerikNavigation:RadMenuItem x:Name="_copyContextMenu" DataContext="{Binding ElementName=_rrtfMessage}" Command="{Binding CopyCommand}" Header="Copy" />
                            <telerikNavigation:RadMenuItem x:Name="_pasteContextMenu" DataContext="{Binding ElementName=_rrtbMessage}" Command="{Binding PasteCommand}" Header="Paste"

    Is there something I need to do differently because the context menu is nested inside of the RadRichTextbox I am trying to bind to?
  2. Answer
    Iva Toteva
    Iva Toteva avatar
    1319 posts

    Posted 20 Oct 2010 Link to this post

    Hello Michael,

    I am attaching a project that shows two ways you can use to make the context menu work - in XAML and in code-behind.
    Basically, what you need to change in your code is not bind the DataContext property of the RadMenuItem, but the DataContext property of RadRichTextBox as follows:
    <telerikDocuments:RadRichTextBox x:Name="_rrtbMessage" HorizontalAlignment="Stretch"  Margin="10,35,10,10" DataContext="{Binding ElementName=_rrtbMessage, Path=Commands}">
    If you have any other questions, do not hesitate to contact us again.

    All the best,
    the Telerik team
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  3. Michael
    Michael avatar
    15 posts
    Member since:
    Sep 2010

    Posted 20 Oct 2010 Link to this post

    Perfect, worked like a charm.
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