>>>Hi,
>>>
>>>I just realized (ran into it) that a regular win forms textbox does not have a Mask property. So I found out that there is a Masked Textbox in VS 2005. But then I read here in some of the old messages that Masked Textbox is not a good idea. I need to have some text boxes to have a Format (!) - automatic upper case and limit a number of characters to, say, 10 or 15. Will Masked Textbox work in this case or should I seek a 3P products?
>>
>>Try the MaskedTextBox. Mask should probably be '>??????????'
>>( > forces following input to upper case, number of ? will determine maximum length)
>
>Thank you. If the regular textbox with CharacterCasing does not work I will turn to masked textbox.

Should work fine - but depends on exactly what you want. A MaskedTextBox with the Mask I suggested will *only* allow upper case A-Z. The TextBox would allow anything (but with alphabetic input converted to upper)