The C1RichTextBoxMenu acts as a complete radial context menu, allowing you to edit and format text containing multiple fonts, decorations, sizes, colors, and other basic HTML and RTF style attributes supported by CSS and inline markup.

Adding a C1RichTextBoxMenu to your application is simple.  Once you've added a C1RichTextBox control to your application and given it a name, you can add a C1RichTextBoxMenu and bind it to the C1RichTextBox control using the RichTextBox property:

<c1RTB:C1RichTextBoxMenu x:Name="rtbMenu" RichTextBox="{Binding ElementName=rtb}"/>
<c1RTB:C1RichTextBox x:Name="rtb"  BorderThickness="2" BorderBrush="DarkGray" RequestNavigate="rtb_RequestNavigate" />

 For more information on using the C1RichTextBoxMenu assembly, you can see the DemoRichTextBox sample installed in the ComponentOne samples folder.