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343

answers:

1
Q: 

Can't see MouseWheel even on nested Panel control in C#

I have a Panel on a TabPage on a TabControl that is on a form.

I have a Mouse Event function "control_MouseWheel".

If I bind that function to the MouseWheel event of just the panel, nothing happens when I scroll the mousewheel.

If I bind that function to the MouseWheel event of both the panel and the TabPage or all three of the Panel, the TabPage and the TabControl, nothing happens.

If I then bind that function to the MouseWheel event of the form, the mouse event handler fires, but only on the form. I can see this via the use of ConsoleWriteline().

How do I get it to fire for the underlying panel that I actually want to use the mouse wheel event?

Am I missing a property setting for the stack of child controls?

+1  A: 

The MouseWheel event is sent to the control that has focus.

Since panels cannot have focus, they will never get MouseWheel events.

SLaks  2009-09-25 01:57:15

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