RadControls for ASP.NET AJAX
RadMaskedTextBox uses a mask string to control the text the user can enter. The string is composed of one or more of the mask elements, as shown the table below:
Digit or space (optional). If this position is blank in the mask, it is rendered as a prompt character.
Uppercase letter (required). Restricts input to the ASCII letters A-Z.
Lowercase letter (required). Restricts input to the ASCII letters a-z.
Accepts any character. If this position is blank in the mask, it is rendered as a prompt character.
Restricts the user to an integer in the declared numeric range. Numeric range mask parts can occupy multiple positions.
Restricts the user to an integer in the declared numeric range. For the internal representation of the value is used Int64(Long) type.
Restricts the user to one of a fixed set of options. The pipe("|") serves as a separator between the option values.
Escape character, allowing the following character to act as literal text. For example "\a" is the character "a" rather than including a free mask part. "\\" is the literal back slash character.
Any other characters
All non-mask elements appear as themselves. Literals always occupy a static position in the mask at run time, and cannot be moved or deleted by the user.