Hello John L. Rosenlof,
Thank you for contacting us.
I thouroughly tested your scenario with Q1 2009 and it seems that the behavior of the MDI child RadForms
is inappropriate. To work around the issue you should use a RadShapedForm
in a combination with RadRibbonBar
instead of a RadRibbonForm
. In this way you will avoid the "double tabstrip"
which appears when the MDI child is maximized. The MDILayout
demo under RadRibbonBar
tab in the telerik demos installed on your computer illustrates this workaround (to start the demos please use the following path: C:\Program Files\Telerik\RadControls for WinForms [version]
Please bear in mind that the version you are using is not officially supported any more. I highly recommend you to use the latest version of our products. Since you mentioned you are stuck with Q1 2009, I kindly suggest you to start the upgrading process and share with us any issues you encounter. Our team will be more than happy to help you!
the Telerik team
Q1’11 SP1 of RadControls for WinForms is available for download
; also available is the Q2'11 Roadmap
for Telerik Windows Forms controls.