uwp 中的路由事件

Question

I'm having difficulty finding how to register a RoutedEventHandler in UWP. I need to have an event handler in parent class which can control access to all child classes inside it.

Answer 1

Currently UWP cannot customize routing events like WPF. In UWP, you can consider using EventHandler instead of RoutedEventHandler :

public class ParentModel
{
    public event EventHandler TestEvent;

    public void DoSomething()
    {
        //do other things...

        TestEvent?.Invoke(this, EventArgs.Empty);
    }
}

Usage

var parent = new ParentModel();
parent.TestEvent += HandleTest;

...

private void HandleTest(object sender, EventArgs e)
{
    var parent = sender as ParentModel;
    // do something...
}

Thanks.