MVVM Binding ICommand to RadRichTextBox QuickAccessToolBar RadRibbonButton

[Richard]

I'm trying to bind my own ICommand to a RadRibbonButton's Command. My code is based on the example at http://demos.telerik.com/silverlight/#RichTextBox/Binding. The relevant bit of the XAML hierarchy is:

<telerik:RadRichTextBoxRibbonUI DataContext="{Binding Path=Commands, ElementName=richTextBox}">
     <telerik:RadRichTextBoxRibbonUI.QuickAccessToolBar>
                        <telerik:QuickAccessToolBar>
                            <telerik:RadRibbonButton telerik:RadRichTextBoxRibbonUI.RichTextCommand="{Binding Path=SaveCommand}"     <== This is the button I want to bind my MVVM ICommand to.

Obviously, I removed the RichTextCommand attached property, and tried to bind the Command property to the ICommand on my viewmodel, which is set as the DataContext for the Window. As you can see, the example XAML (above) modifies DataContext at the RadRichTextBoxRibbonUI level, so to get back to "my" DataContext, I set a "Name" to an element higher up the visual tree, and used "ElementName" in my Binding, with the intent of using "Path=DataContext.MySaveCommand"; but I got a binding error saying that it couldn't even find the named element. I also tried {x:Reference} but got circular reference issues with that.

Please can someone demonstrate how to bind that command using MVVM?

My project references the "2016.3.1024.45" version of the assemblies. I tried attaching it; but it wouldn't let me.

[Richard]

Just to be clear, I am building a WPF application, not Silverlight (which is what the example is for).

[Boby]

Hello Richard,

I'v just tried the approach from this StackOverflow thread, and it seems to work:

<telerik:RadRibbonButton Command="{Binding DataContext.MyCommand, RelativeSource={RelativeSource AncestorType=local:MainWindow}}"  />

where the data context of the MainWindow is a class which exposes ICommand MyCommand property. Can you confirm this is working on your side? If not, could you please send us small sample project, so that we can investigate the problem on our side?

Regards,
Boby
Progress Telerik

[Richard]

Thanks, yes, that works!