Check if Keys is Letter/Digit/Special Symbol

Question

I override ProcessCmdKey and when I get Keys argument, I want to check if this Keys is Letter or Digit or Special Symbol.

I ha

Answer 1

you need either a giant switch/case statement or check for ranges. You may find it easier to check for the keys you want to exclude, depending on which there is fewer of. Look at this for all the possible values. http://msdn.microsoft.com/en-us/library/system.windows.forms.keys.aspx

if (keyData >= Keys.A && keyData <= Keys.Z)
   // do something

or

switch(keyData) {
case Keys.Add:
case Keys.Multiply:
// etc.
   // do something
   break;
}