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Freeze exception on DropShadowEffect when opening a contextmenu
See original GitHub issueDescribe the bug
I get the exception: System.Windows.Markup.XamlParseException: ‘Cannot access Freezable ‘System.Windows.Media.Effects.DropShadowEffect’ across threads because it cannot be frozen.’ when opening a context menu.
I am using several MetroWindows dialogs, each has his own dialog thread, instanciated as thread.SetApartmentState(ApartmentState.STA).
Steps to reproduce
Exception occurres when in one dialog a menu or context menu is openend and afterwards in a different dialog a context menu is trying to be opened.
Actual behavior
This exception did not occur with MahApps version V1.6.4.
Turning off drop shadow with “HasDropShadow=False” on context menu did not improve the situation.
Environment
MahApps.Metro version: v2.0.0
Windows build number: Win10 1909 [Version 10.0.18363.836]
Visual Studio: 2019 16.6.0
Target Framework: .Net Core 3.1 (v4.5.2, v4.7.2)
Issue Analytics
- State:
- Created 3 years ago
- Comments:7 (1 by maintainers)
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Hi @timunie and @punker76,
I made the sample repro public.
Thanks again for your effort!
Best regards, Gordon
Hi @punker76 ,
okay, that was my workaround so far.
Thank you for your answer and your effort!
Best regards, Gordon