I need a a regular expression to allow only one character for a textbox. Actually i want to validate a text filed to enter a single charecter for Initial (for name)
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I need a a regular expression to allow only one character for a textbox. Actually i want to validate a text filed to enter a single charecter for Initial (for name)
In a regular expression, ‘.’ (dot) matches a single character.
If you want to be sure that this single character is alphabetic, use:
or in a posix system:
[:alpha:]Now, to know exactly how to implement it, we need to know in which language your code is written.
For a starter, have a look to
http://en.wikipedia.org/wiki/Regular_expression