Hi,
Create a new app, dropped a Panel and set ShowHeader=true. Set Collapsed=true and the the designer.cs file shows Location as (0, 0) and Size as (0, 28). Reset Collapsed = false and Size becomes (0, 0).
This might be related to https://wisej.com/support/question/splitcontainer-panel-collapsed-property.
Thanks.
Yes, unfortunately the collapsed state at design time is still a pain. Getting there though…
/Luca