Hi Scott Waye,
In order to escape the auto-sizing of the ComboBox, you need to set both the Width Property of theGridViewComboBoxColumn and the Width property of the ScrollViewer enclosing the ItemsPresenter:
The Width property of the GridViewComboBoxColumn should be like:
Here the deviation of 4 pixel is necessary as the EditTemplate is slightly different than the ComboBox shown. In case you want a Horizontal Scroll Bar, you may set the property of the ScrollViewer:
I am sending you a sample project illustrating the proposed solution.
Regards,
Maya
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Explore the
Telerik Public Issue Tracking
system and vote to affect the priority of the items