Change Window Title From Background Thread

[HowardPWeiss]

I a, developing a C# desktop application for Linux using Visual Studio Code

I want to change the title of the main window of my application from a background thread. I added a method in app.xaml.xs to fall MainWindow.Title = "new window name" which I call from my background thread. Calling the method updates the MainWindow title but not the screen.

If I minimize and maximize the main window, the title changes to the desired title.

I have tried multiple possible solutions to invoke the MainWindow..Title = "new window name" on the UI thread, but so far I have not been successful

Please advise

[HowardPWeiss]

I have discovered that calling executing the following statement after MainWindow.Title + "new title" causes the window title to change

MainWindow.AppWindow.Resize(new Windows.Graphics.SizeInt32 { Width = 900, Height = 800 });

The window size does not change regardless of the Width and Height of the SizeInt32 object

[lextm]

The test revealed you need to invalidate the region of the title by resizing (or another equivalent operation) and then the change takes effect.