Using masks and custom characters

Symbol and Description

9   Allow only numeric in that position of the textbox
L   Allow only letter in that position of the textbox
$   Allow only a letter or a space
C   Allow only a custom character. It is case sensitive.
A   Allow only a letter or a custom character
N   Allow only a numeric or custom character
?   Allow any character user to be entered in the textbox
/   This one is used to denote date separator
:   This one is used to denote time separator
.   This one is used to denote decimal separator
,   This one is used to denote thousand separator
\   This one is escape character to separate values ex .999\/999 if we use like this / is appear in between six numbers