Thank you for writing back.
In regards to the first approach, the control logic will not allow such a resizing and it will try to follow its standard layout logic. There is now suitable event for this.
In regards to the extra spaces approach, it will also not work, as the text will be trimmed as you noticed.
What I can offer is to manually increase the width of the ribbon tabs in the desired contextual tab group, by setting their MinSize property and perform a layout:
sender, EventArgs e)
I have also added a feature request in our Public Issue Tracking System
, so the users can vote for such a functionality: http://www.telerik.com/support/pits.aspx#/public/winforms/13514
I hope this helps.
the Telerik team