Question

I’m constantly having to use TouchDown/TouchUp events here in my WPF project to detect a ‘double-tap’; sometimes on a listbox, sometimes a button, sometimes a telerik control. How would I go about adding a DoubleTap event and event handler to these controls? Too big of a job?

Answer 1

You could create a class that is constructed with a reference to the control and a delegate function. (Please forgive my not perfect syntax [if it isn’t perfect], I am typing this from memory)

public class DoubleTap {
    delegate void ActionFunction();
    Control ReferencedControl;
    public DoubleTap ( ref Control referencedControl , delegate actionFunction ) {
        ActionFunction = actionFunction;
        ReferencedControl = referencedControl;
        // apply TouchDown and TouchUp event handlers to ReferencedControl
    }
    // Put your TouchDown and TouchUp functions for testing the double tap here
    // when double tap tests as true then call ActionFunction();
}