Hi Patrick,
Please ignore my previous response since it was not complete. Here is the complete reply.
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Hi Patrick,
Thanks for sending the sample. I was able to see that setting the control size using SetControlSize method did not take effect in both the form load and the NewDockStateEndLoad event handlers. Also make sure you use the NewDockStateEndLoad event handler for performing all custom initialization of the docking layout. Here is a related KB article.
http://www.syncfusion.com/Support/article.aspx?id=10161
You can achieve what you require by
1) Turning off the AutoHideOnLoad property in the designer
2) Set the size and Autohide the groupbar in the
NewDockStateEndLoad event handler.
Here is the modified sample.
F18925_3347.zip
I will also investigate the reson why the SetControlSize does not take effect when the AutoHideOnLoad property is set to true for the control.
Please let me know if you have any questions.
Thanks.
Best regards,
Stephen.