Hi Frank,
   Instead of the ValueChanged event, there is also the [Before|After]ExitEditMode events. Or if you have the AlwaysInEditMode property set to true, you can use the LostFocus or Validating events. All of those trigger when the editor loses focus. Which would likely be the ideal time to round the values.

Let me know if that helps,

Hi Josheela,

Thank you very much for your suggestions.

ultraNumericEditor1.Value = Math.Round(nValue / 100d, 0) * 100;

I have already this rounding solution in my real application. The only disadvantage is that the updated value is only getting visible if the ultraNumericEditor1 is losing the input focus. The main problem from the view of the programmer is, that we don’t really know when the user has competed his input.

I am still hoping that we can find an input mask which can solve this in a more elegant way.  

Best regards
Frank

One option, is to use the same Numeric Editor and validate the value user enters and round it to the nearest 100's. For that all you need to do is update the ultraNumericEditor1_ValueChanged event with one line of code as,

private void ultraNumericEditor1_ValueChanged( object sender, EventArgs e )
{
  if( ultraNumericEditor1 != null )
  {
    int nValue = SaveObject2Int32(ultraNumericEditor1.Value);
    f (nValue > 0)
    {
      DebugWriteLine(nValue.ToString());
    }
    ultraNumericEditor1.Value = Math.Round(nValue / 100d, 0) * 100;
  }
}

Thanks,
Josheela