Validation on DataGrid

How we implement validation when we use DataGrid for editing our records

Thanks
Kulwinderhello, what u can do is, use regular expressions to validate any new data being entered !!!! or even try to add the built-in validators of asp.net beside the server controls in the editmode !!!
HAIDAR BILAL

I am showing my records in DataGrid.
after that i edit these records within DataGrid.
When i set grid's EditItemIndex property after that all values come in textboxes and user can changes thses values.

I WANT IMPLEMENT VALIDATION ON THESE TEXTBOXES.
like not null,email validation etc...

thanks for your response
hello u can do this manually,
when u get the values to be updated, check them against any condition u want, u can use regular expressions if u want, then if not good, you can send an alert message asking the user that the data were not good to update, re enter new data.
hello

I want implement validation on client side.

thnx
Well, i haven't played with this before !!!! valdiating in the update state, maybe someone who worked with this before can tell us more about this problem, i didn't know u need client validation !!!