RadCollapsiblePanel doesn't adapt to content height in auto-size

[Luca]

Hello,
Thanks for your help in advance.

I'm experiencing an issue with the "RadCollapsiblePanel" not adjusting to the content height when "AutoSize = True".

Below is the page layout structure:

• TableLayoutPanel
  • 1 columns (width: 100%)
  • 3 rows (height: auto):
    • RadCollapsiblePanel
      • MyUserControl
    • RadCollapsiblePanel
      • MyUserControl
    • RadCollapsiblePanel
      • MyUserControl

All components have "AutoSize = True" and "Dock = Top".
Collapsibles have "FitToContentHeight = FitToContentHeight" and "Root.StretchVertically = True" but they still don’t seem to fit the content as expected.

[Dinko | Tech Support Engineer]

Hi Luca,

Thank you for the provided code snippet. However, to avoid any misunderstanding and to have a better look at the set-up, may I ask you to isolate the structure in a sample project? This way I can directly investigate the code and check the properties set to the elements. 

I am looking forward to your reply.

Regards,
Dinko | Tech Support Engineer
Progress Telerik

[Luca]

Thanks for reply,

I have attached the requested project.
Hope this helps.

[Dinko | Tech Support Engineer]

The provided project is greatly appreciated. Upon checking the code, the height of the RadCollapsiblePanel is too small. If you change the height of the panels to 150, you will see their content and be able to collapse it as expected. Keep in mind that the RadCollapsiblePanel is not auto size and you need to set its size.

I am also attaching the updated project.

[Luca]

Thanks for your answer,

Since content of the collapsible panel can be dynamic, I need an auto-size parent.
I'll look for a solution.

[Andrea]

I know this is a bit of an old question, but have you found any solution yet?

[Dinko | Tech Support Engineer]

I am afraid that I can't suggest a solution for the reported behavior. What I can only suggest with the current implementation is to set static size to the control.