MaskBox.Mask (gb.form)

Property Mask As String

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.