wpf canvas double click

Question

I am trying to fetch a double click from the user on a canvas. I am using the previewmousedown event for this, but it isn't working properly.

The function is as following:

    void DrawCanvas_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {

        /* Check if it is a double click */
        if(e.ChangedButton == MouseButton.Left && e.ClickCount == 2)
        {
           //do double click actions
        }
        else
        {
           //do single click actions
        }
        e.Handled = true;
    }

I have tried to move it to the previewmouseup function as well, but the clickcount stays on 1.

Anyone an idea why the clickcount doesn't go up?

Yes, but it never goes inside the if statement for double click, also without breakpoint it doesn't work — Gerard van den Bosch, Aug 11 '14 at 17:54
http://stackoverflow.com/questions/2086213/how-can-i-catch-both-single-click-and-double-click-events-on-wpf-frameworkelemen — Core-One, Aug 11 '14 at 17:55
@Gerard - I just tried in small sample and works for me without any issue. Try to show message box instead of putting breakpoint. — Rohit Vats, Aug 11 '14 at 17:58
The message box worked and due breakpoint it only said clickcount 1, then I found out the error was in my own code executed after the double click. Thanks for your help — Gerard van den Bosch, Aug 12 '14 at 07:19

score 3 · Answer 1 · answered Nov 30 '15 at 07:17

3

Instead of using PreviewMouseLeftButtonDown Event, use MouseLeftButtonDownEvent to overcome this Problem.

answered Nov 30 '15 at 07:17

wpf canvas double click

1 Answers1