jQuery/Ajax form validation

[eluser]By AzraiL[/eluser]
[quote author="Mat-Moo" date="1246326237"]I have some rows of data, and want the user to be able to edit a row. So I have an icon on the end which they click to go to the edit page - pretty simple stuff. I'm looking to make this slicker byusing hte jquery Facebox popup with a form inside it, works great... except that if the validation failes the screen just refreshes and any other changes you make are lost.

So it seems I need to explore Ajax in order to do this. Now I have done some basic Ajax stuff before but never in CI and with jQuery. I've done some searhcing on here and found a few samples and snippets that seem fine, but what I can't get my head around is how to redisplay the form if there are validation error?

I could do with some pointers/sample code in order for my diminishing brain to understand this bit [/quote]

Mat-Moo look this my write : http://www.dev10.net/en/blog/jquery-ajax...odeigniter

File download works : http://www.dev10.net/en/file-download?id=1

Jquery form validation.