title: How do I detect a NumberDecimalSeparator in a KeyDown event (C#)
body: <p>I'm trying to see if the user has pressed a decimal separator in a text box, and either allow or suppress it depending on other parameters.</p>
  
  <p>The NumberdecimalSeparator returns as 46, or '.' on my US system. Many other countries use ',' as the separator. The KeyDown event sets the KeyValue to 190 when I press the period.</p>
  
  <p>Do I just continue to look for commas/periods, or is there a better way?</p>