icsharpcode
Using Dispatcher when accessing the ItemsSource of the start page
When using SDA the initialization of recent projects on start page, because after await another thread tried to access ItemSource
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Are there any news? Something missing? is it possible to merge the pull request?
If BuildRecentProjectList is called on the UI thread then setting the ItemsSource should be called on the UI thread so you should not need to use the dispatcher. The Task.Run part will be run on another background thread. This task is awaited and so the code adding items to the list's ItemSource should execute on the UI thread.
I agree that the code adding items to the list's ItemSource should execute on the UI thread. But the behavior is different when using SDA (Sharp Develop for Applications). After await, a MTA thread is returned form Thread Pool, that executes the code. In this case Sharp Develop is hosted in another process, therefore the Task Framework behave different.
It is reproducible when using samples\SdaUser, when including the StartPage Add-In.