How can I catch the file not found error in .NET MAUI's MediaElement

Question

When I enter a non existing mp3 file from my windows system in the .NET MAUI's MediaElement results in an unhandled exception. I'd expected the error would show up in the MediaFailed event. Do I have to create a global exception handler or is there an other solution?

An item cannot be found at the specified path (C:\Users\etc...  .mp3).

   at CommunityToolkit.Maui.Core.Views.MediaManager.<PlatformUpdateSource>d__35.MoveNext()
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)
   at Microsoft.UI.Dispatching.DispatcherQueueSynchronizationContext.<>c__DisplayClass2_0.<Post>b__0()

The system cannot find the file specified.

Answer 1

Hello,

For the legitimacy verification of a file, the file method usually verifies its legitimacy and is not a handling exception.

Before setting the file path, you could use the File.Exists method to determine whether the file exists to avoid this exception.

var path = media_path;
if (File.Exists(path))
{
    media.Source = path;
}
else
{
    Console.WriteLine("file does not exist");
}

Best Regards,

Alec Liu.

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