Masks
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:
| Mask Element | MaskPart class | Description |
|---|---|---|
| # | DigitMaskPart | Digit or space (optional). If this position is blank in the mask, it is rendered as a prompt character. |
| L | UpperMaskPart | Uppercase letter (required). Restricts input to the ASCII letters A-Z. |
| l | LowerMaskPart | Lowercase letter (required). Restricts input to the ASCII letters a-z. |
| a | FreeMaskPart | Accepts any character. If this position is blank in the mask, it is rendered as a prompt character. |
| <n..m> | NumericRangeMaskPart | Restricts the user to an integer in the declared numeric range. Numeric range mask parts can occupy multiple positions. |
| <n...m> | LongRangeMaskPart | Restricts the user to an integer in the declared numeric range. For the internal representation of the value is used Int64(Long) type. |
| <Option1|Option2|Option3> | EnumerationPart | Restricts the user to one of a fixed set of options. The pipe("|") serves as a separator between the option values. |
| * | LiteralPart | When adding * character to the Mask it appears as literal. In case it is added to the DisplayMask the * symbol appears on blur. |
| \ | N/A | 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 | LiteralPart | All non-mask elements appear as themselves. Literals alwaysoccupy a static position in the mask at run time, and cannot be moved or deleted by the user. |