http://bugs.winehq.org/show_bug.cgi?id=59602 --- Comment #1 from matthias.klaey@gmx.ch <matthias.klaey@gmx.ch> --- I think the root cause is `else if (IsContainerAutoScaling (this.Parent))` at https://gitlab.winehq.org/mono/mono/-/blob/main/mcs/class/System.Windows.For...: The container of `TestControl` is `TestForm`, which is about auto-scaling (https://gitlab.winehq.org/mono/mono/-/blob/main/mcs/class/System.Windows.For...) when the above piece of code is being called. Consequently, `TestControl` will not perform scaling in respect to the size (https://gitlab.winehq.org/mono/mono/-/blob/main/mcs/class/System.Windows.For...). If this analysis is correct, the implementation will have to be refined such it performs scaling children even with nested controls. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.