MaskBox.Mask (gb.form)

Return or set the control mask.

The mask is a string that depicts how characters are validated. If the mask is void, then the MaskBox acts like a normal TextBox.

Mask item	Function	Default character	Description
[...]	Character range	Space	Every character in the range is allowed. The syntax of the character range is the same as in the LIKE instruction.
?	Any character	Space	Any character is allowed.
0	Mandatory digit	Zero	Any digit is allowed.
# or 9	Optional digit	Space	Any digit is allowed.
A	Letter	Space	Any ASCII letter is allowed.
<	Right-aligned field	N/A	The characters between the last separator and the < character will be right-aligned.
!	Focus	N/A	Define where is the default character position of the control when it gets the focus.
Other characters	Separator	N/A	Any other character is a separator that will be displayed as is on the screen.
\	Quoting	N/A	If you want to use a special character as a separator, you have to quote it with the \ quoting character.

Examples

Mask	Meaning
$#,###,##0<!.##	Currency.
##0<.##0<.##0<.##0<	IPv4 address.
99/99/9999	Some date.
A[A-Za-z0-9_][A-Za-z0-9_][A-Za-z0-9_]	A four character identifier.