capturing up down keypresses in the combodropdown

[Peter]

what is the proper way to catch up & down keypress for the combodropdown

TIA,

Peter

[Administrator]

Hi Peter

You will have to derive from ComboDropDown control and override the ProcessDialogKey in your derived control to catch the Up and Down keys.

Regards
Arun

[Peter]

ProcessDialogKey is never called for directional keys

[Administrator]

Hi Peter

Yes, that seems to be the case. Sorry. You need to override ProcessCmdKey instead. Here is a derived ComboDropDown that does what you are looking for:

public class MyComboDropDown : Syncfusion.Windows.Forms.Tools.ComboDropDown
{
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if (keyData==Keys.Left ||keyData==Keys.Right || keyData==Keys.Up || keyData==Keys.Down)
{
MessageBox.Show("Arrow Key: " + keyData.ToString(),"MyComboDropDown");
}
return base.ProcessCmdKey (ref msg, keyData);
}
}

Regards
Arun