wpf: capturing mouse does not work
- by amethyste
hello
I am developing an kind of outlook calendar application where I need to make the appointment resizable from mouse.
My first try with a thumb did not work properly so I tried another way.
What I did is that:
1) on the botton of the appointmennt panel I added a rectangle to figure out the resize zone (the thumb). The appointment panel is put on a grid panel.
2) I intercept down event on the rectangle and send event to this code:
private Point startPoint;
private void OnResizeElementMouseDown(object sender, MouseButtonEventArgs e)
{
e.Handled = true;
this.MouseMove += new MouseEventHandler(ResizeEndElement_MouseMove);
this.MouseLeftButtonUp += new MouseButtonEventHandler(OnResizeElementMouseUp);
// some code to perform new height computation
Mouse.Capture(this);
}
where this is the appointment panel that own the thumb.
Decreasing height works well.
But increasing is more difficult. If I move the mouse very very slowly it's OK, if I speed it up a little bit it tends to leave out the appointment panel and then all MouseMove event are lost.
I thought Mouse.Capture() was propose to solve this kind of problem, but in fact not.
Does anybody know what is wrong in my code?
