>>>Hi everybody,
>>>
>>>I could not find this info in Help on Format, though I remember, I saw it there. I have a field Status in a table, which could be either A or I (Active/Inactive). I don't want to use combobox for this, so I need to restict textbox values. I can do it in KeyPress event, but I want something simpler...
>>>
>>>Could you please help me?
>>>
>>>Thanks in advance.
>>
>>Put '@M' in the Format property and the list of values separated by commas into InputMask property
>
>Thanks, it works, however, I can not delete value. Also M Included for backward compatibility and not documented.

If the only valid choices are "A" or "I", why would you need to delete the value?