Masked TextBox
Here are some important characters for custom masks:
Character Mask value
0 (zero)
Required digit
9
Optional digit
A
Required alphanumeric
a
Optional alphanumeric
&
Required Unicode character
C
Optional Unicode character
#
Optional digit or space, or plus or minus symbol
L
Required letter (a-z, A-Z)
?
Optional letter
. (period)
Decimal place holder
, (comma)
Thousands place holder
$
Currency symbol
: (colon)
Separate time values
/ (forward slash)
Separate date values
< (less than)
Force to lower case
> (greater than)
Force to upper case
good luck


