Hi Maor,
Thanks for the update,
You can avoid floating for a control in docking manager using "SetAllowFloating" as per the following code snippet. Also i have attached a simple sample for the same.
[Code Snippet]
this.dockingManager1.SetAllowFloating(this.panel2, false);
Please let us know if you have any concerns.
We are glad to help you out.
Regards,
Selva Ganapathy K
floatpanel_7d7a8b12.zip