how to i get checkbox data after form submit

Feb 24 2014 7:14 AM

sir

i have crate college website. for attendance system

i want c# code for ................following
i have bind data to gridview
when i click on headercheckbox then all checkbox selected display all rollno and inserted rollno to db.
when i click on itemcheckbox then only those checkbox selected and display those rollno and insert roll into db

i have provide you screenshot for helping you