Sam,

>I think I have stumbled across a new bug in MM.Net.
>
>If a user accidently enters an alpha character into a TextBox control that is bound to a numeric value, an unhandled FormatException error occurs upon leaving the TextBox.

I'll check into it, but it's really a best practice to not let the end user enter invalid data (characters when they can only enter integers). I recommend using a control such as mmNumericUpDown or mmMaskedTextBox and only let them enter integers.

Best Regards,