jQuery UI Date Picker control issue with .Net

I build .net applications that require date entry, so I implement the Date Picker control often. Unfortunately, there is a problem when it is used on a field that is validated using a .Net validation control.

Upon clicking on a date, I get the following error:

length is null or not an object

This only occurs when using Internet Explorer. Currently, my only solution is to edit the source code.

Locate the following code in jquery-ui.js or ui.datepicker.js:

inst.input.trigger('change')

Replace it with:

if (!$.browser.msie){inst.input.trigger('change')}

This prevents the change event firing in IE.

Thanks : AndrewRowland