I've created a form with several textboxes and one SfComboBox control. I've added this code:
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
Console.Beep();
return base.ProcessCmdKey(ref msg, keyData);
}
The problem is that TAB and ESC keys (and maybe other keys - needs more testing) are not generating proper events (they can't be intercepted by ProcessCmdKey) when focus is in the SfComboBox control.