Hi Golda,
Your example also have same problem whatever i mention in the previous screen shot.
I again i attaching the your example screen shot.
please run your code and see the problem.
My problem is reduce the gap between two panel hide buttons in top
i represent the gap in red color round in the screen shot.and i am using the Syncfusion version 4.4.0.51 and .net varsion 2.0
With Regards
K.Sathishkumar
DockButtonProblem0.zip