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Client side date validation using jQuery plugins

I have been facing problem of validating a text input field for a valid date. We are using two popular jquery plugins : jQuery validation and jQuery UI datepicker for client side validation.

I googled it and found a good solution here but it was validating only the formatting i.e. 30-Feb-2010 is a valid date if the formating string was dd-MMM-yyyy. In our case 30-Feb-2010 should be invalid date.

The solution I got is to define custom validator for date as shown below :

<script type="text/javascript">
                function(value, element) {
			// parseDate throws exception if the value is invalid
                     try{jQuery.datepicker.parseDate( 'm/dd/yy', value);return true;}
                     catch(e){return false;}
                    "Please enter a valid date"

Now I am able to use this custom validator as :

<script type="text/javascript">
	// myDateInputField is the id of text input field
        // apply the custom validator
        jQuery("#myDateInputField").rules("add", {customDateValidator:true});
        // apply the date picker

Hope it helps you.

~~~ Bhagwat Kumar ~~~~

Cheers! ~~Bhagwat Kumar~~ bhagwat(at)intelligrape(dot)com

8 Responses to Client side date validation using jQuery plugins

  1. Kerrie says:

    Thanks so much for posting this, but I’m still having problems getting it all to work. Can you possible show me a “sample” of your finished page? Thank you so much.

  2. Virendra says:

    Well your article is good and useful when someone is using validation plugin. But I encounter the same problem where I need to validate the date but I am not using the validation plugin. Looking for a solution which works without validation plugin. After some googling found a function which actually returns true or false based on the input.


  3. Thanks Virendra for sharing.

  4. asvtech says:

    Thanks a lot !!!

  5. Eugo says:

    @virendra: true, but then you have to write all the cases for each date format. I only modified the above script to insert my variable for the date format string, and put my selector (to cover all the date fields I may have) and it just worked for each date format I may have.

    So if you aren’t using the validation plugin, of course you need to roll your own.

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