Thank you for your question.
property comes from the base Control
class, but is not relevant for all controls. RadSplitContainer
is one of the controls that does not support AutoSize
. Furthermore, when you set the Dock
property of RadSplitContainer
, it always occupies the entire client area of its parent (the RadPageViewPage
) and therefore cannot be sized. On the other hand, the SplitPanel
s are arranged internally by the RadSplitContainer
and also cannot be sized.
To achieve the desired scenario, you can implement the automatic sizing by handling some events. This is demonstrated in the attached files.
I hope this will help you. Do not hesitate to ask if you have any additional questions.
the Telerik team