preventing controls from handling key events

[Guest]

Hallo,
i would like to prevent TextBox and ComboBox from handling some keyevents. I
have installed SP3. For example TextBox should not handle Keys.Up/Down,
ComboBox should not handle alphabetic keys ans so on... (i would like make
own handlers in derived controls).
I tryed to register KeyDown handler witch sets KeyEventArgs.Handled to true,
override OnKeyDown,Up,Press without calling base.OnKey... but without any
success. Is there any way to do so?

 

[Sergey Bogdanov]

You can suppress alphanumeric key by using KeyDown handler together with
KeyPress handler but this method doesn't work for Up/Down keys in the
multiline textbox. To avoid this problem use OpenNETCF IMessageFilter to
handle WM_KEYDOWN for your control. Here's how to accomplish it:

http://www.sergeybogdanov.com/Samples/TextBoxKeyDownFilter.zip

The same technique can be used to ComboBox control.

Hope this help,
Sergey Bogdanov
http://www.sergeybogdanov.com

 

[Guest]

Thank you Sergey, IMessageFilter is what i was looking for.

 

[Miron Ophir]

How do you get the control to get the events in the first place?
Under smartphone, they are not getting to the control?

Miron