Recipe4share.App.OnActivated(Windows.ApplicationModel.Activation.ProtocolActivatedEventArgs)': no suitable method found to override

Question

I'm converting my app from VB to C# and almost everything goes well except one thing:

namespace Recipe4share
{
	public sealed partial class App : Application
	{
		protected override void OnActivated(ProtocolActivatedEventArgs args)
		{
		...
		}

		protected override void OnLaunched(Windows.ApplicationModel.Activation.LaunchActivatedEventArgs args)
		{
		...
		}
		...
	}
}

I get the error as stated in the title of this thread. I can't find out what went wrong, especially with OnLaunched not causing the same error.

I compared I think almost everything with a C# app which works fine, and copy-pasted the OnActivated method in that app's app.xaml.cs and there was no error.

Answer 1

Did you try this signature (new EventArgs type):

protected override void OnActivated(IActivatedEventArgs args)
{
    // ...
}

Answer 2

Did you try this signature (new EventArgs type):

protected override void OnActivated(IActivatedEventArgs args)
{
    // ...
}

That gave the same error and I need to use ProtocolActivatedEventArgs. If I just copy the method to another C# app, there is no error. There is something else wrong in the solution, I think related with the conversion from VB to C#.

Answer 3

You really need to use the correct signature for OnActivated, or the override is not recognized. Please check the source code to cast IActivatedEventArgs to ProtocolActivatedEventArgs right here.