Mousedown event

[gilgamesh]

Hi,

First off thanks for your time.

I have a class that is derived from a control. I am trying to handle mouse events. I am able to handle most mouse events just fine except for MouseDown.

 

My code is fairly simple:

//constructor for the class

public MyControlClass()

{

this.MouseDown+=new MouseButtonEventHandler(MyControlClass_MouseDown);

 

}

 

public void MyControlClass_MouseDown(object sender, MouseEventArgs e)

{

MouseDownPt = e.GetPosition(this);

MessageBox.Show(MouseDownPt.X + " " + MouseDownPt.Y);

}

 

I put in breakpoints inside mousedown...never being hit.

Any suggestions?

Thanks again,

G

[MrPaul]

Override protected methods

 

I don't have any insight into the problem, but personally I find it neater to override the protected On[Action] methods when deriving from controls:

 

protected override void OnMouseDown(MouseEventArgs e)
{
   MouseDownPt = e.GetPosition(this);
   MessageBox.Show(MouseDownPt.X + " " + MouseDownPt.Y);

   //Call method in base class
   base.OnMouseDown(e);
}

 

Note that this is the preferred method of handling events in derived classes, as specified in MSDN:

 

The OnMouseDown method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

 

Good luck :cool: