Allows you to limit what characters a user can enter on textboxes or textareas.

Did you ever found a need where you want to prevent your user from entering certain characters?

Looking at the plugins available at jQuery, i found a great plugin by Sam Collet called Numeric.

But it was too limited, what if I'm asking the user to create a username? or to enter a number with decimals or an IP Address? There is another great plugin called Masked Input by Josh Bush, which can also control user input by defining a mask. but the problem was the length of text to be input must be defined as well. Again, what if I needed to control input of a username? I can't tell how many characters the user will be using, and I can't force him to use just 8 characters ,so I created AlphaNumeric.

jQuery AlphaNumeric is a javascript control plugin that allows you to limit what characters a user can enter on textboxes or textareas. Have fun.

API Functions

1. alphanumeric - allow both alphabet and numeric characters
2. alpha - allow only alphabet characters
3. numeric - allow only numeric characters

API Properties

1. allow - add excempted characters to the rule of prevention
2. ichars - define a custome set of characters to prevent
3. allcaps - allow only capital letters to be entered
4. nocaps - allow only lowercase characters to be entered

Comments (1)

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Suresh P said:

	... The arrow keys are not working in Firefox when we use Alphanumeric validation in a textbox. Is it already known one? Thanks, Suresh P
	report abuse vote down vote up

November 20, 2008
Votes: +0

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