Validating a date in javascript

I'm using the format date/month/year (dd/MM/YY) Hi! You can pick up the value yourself on postback using this if you do want to set the field to read-only: if (Page. You should probably mark the first post to your original question as "Answer" too (if you haven't already) as he got you most of the way to the solution [:)] Here is an easier solution that most people are using.

You could try one of the following (in this order) : 1. Is Postback) I'm not sure if there are any problems with date formats with this approach though so take care. It will prevent postbacks and so it is easier on your server and faster for the user.

Please make sure that the format in your calendar looks like this: %m-%d-%Y Besides this you can use the following code directly as custom validation script in your element: This example is for the js calendar date pattern (MM-DD-YYYY), therefore the javascript above might be slightly different for other patterns, for instance if you want another seperator.

Form validation helps us to ensure that users fill out forms in the correct format, making sure that submitted data will work successfully with our applications.

Follow the link below: to mention it also gives the user the flexibility to type their date by hand if they wish.

You may be familiar with this pattern from it's use in j Query.

First, the HTML: attribute to turn off the browser's automatic validation; this lets our script take control over validation.

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If the entered data follows all those rules, it is considered valid; if not, it is considered invalid.

Calling these methods without parameters acts as a getter, and calling them with a parameter acts as a setter.

These map to the corresponding function on the native Once you have a Persian Date , you may want to manipulate it in some way. persian uses the fluent interface pattern, also known as method chaining.

If the calibration due date is before the test date I need a pop up alert to say "Calibration due date must be after test date." I have been searching in the forums and tried adjusting four different methods to do this but have not been able to get any to work perfectly.

After the calibration due date is entered I need to validate the the calibration due date is after the test date.

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