[Mono-dev] Patches for mono-winforms

Steven Boswell II ulatekh at yahoo.com
Sun Jul 29 15:44:22 UTC 2012


This change introduced a OneIdlePerThread unit test that has never worked for me.  All I get is the following exception:

System.InvalidOperationException : Cannot call Invoke or BeginInvoke on a control until the window handle is created

Patch #18 fixes that by creating a Form type that calls CreateHandle() in its constructor.  But now the unit test hangs hard in Mono!

I created a project with the unit-test, and when run in Mono, it hangs hard; selecting "Run -> Pause" in MonoDevelop hangs MonoDevelop, and the debugged process chews up 100% of the CPU time

I ran the project in .NET, and instead of a hang, I get this exception:

System.InvalidOperationException: Cross-threaded operation not valid: Control '' accessed from a thread other than the thread it was created on.

Patch #18a fixes that by moving the creation of form2 into the right thread.  Now the unit test passes.

So patch #18a can be checked in, but note that patch #18 demonstrates that Mono hangs in a situation where .NET throws an exception.

Steven Boswell
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