how to restrict the user not to redirect to other page when check box is checked in gridview using asp.net with c#

hi

take one hidden textbox for saving checkbox value is checked or not.

When user click on Next button then check value in this textbox using javascirpt. If textbox having value then go next else popup error message for selecting checkbox is needed.

Also, you can loop through know user has selected checkbox values or not...on click of Nextbutton

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 that solved your problem!

There are multiple options according to me to handle a situation like this.
1. Let the user select and go next without add when on the next screen  when he finally selects and clicks the add button the previously selected records shud also be added to database.
2. When the user selects a record disable next enable the next only when add is clicked
3. Inform the user that he has selected a record however not added and would he like to add the record if the user accepts the record will be added to db and if not the next set will be displayed.
You can discuss with your client about these options and accept one.
Thank you,
Vivek