.NET Community Toolkit is a collection of helpers and APIs that work for all .NET developers and are agnostic of any specific UI platform. The toolkit is maintained and published by Microsoft, and part of the .NET Foundation.
MessagingCenter in multiple windows scenario throw System.InvalidOperationException: 'A response has already been issued for the current message.' #815
Message will be occurred twice.
Lead exception thrown.
Regression
No response
Steps to reproduce
https://github.com/jingliancui/MAUIMessagingIssue
Open sln file using vs 2022.
f5 to run the app.
click "OpenNewWin" button on the main window
click "OpenNewWin" button on the main window
click "Do Delete" button on one of the second window
click "yes" on one of the second window
click "yes" on another of the second window
exception thorwn:
System.InvalidOperationException: 'A response has already been issued for the current message.'
Expected behavior
Message occurred should be under controlled.
Screenshots
No response
IDE and version
VS 2022
IDE version
No response
Nuget packages
[ ] CommunityToolkit.Common
[ ] CommunityToolkit.Diagnostics
[ ] CommunityToolkit.HighPerformance
[X] CommunityToolkit.Mvvm (aka MVVM Toolkit)
Nuget package version(s)
8
Additional context
Workaround:
1.add a id something like guid stuff in viewmodel
2.determine the id from where, than go to control the receiver's action.
Describe the bug
Message will be occurred twice. Lead exception thrown.
Regression
No response
Steps to reproduce
Expected behavior
Message occurred should be under controlled.
Screenshots
No response
IDE and version
VS 2022
IDE version
No response
Nuget packages
Nuget package version(s)
8
Additional context
Workaround:
1.add a id something like guid stuff in viewmodel 2.determine the id from where, than go to control the receiver's action.
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