How to Prevent Duplicate ID insert into gridview using views

Accepted answer

Try below link https://www.codeproject.com/Questions/842462/Check-if-value-already-exists-before-adding-values

Hi,

https://forums.asp.net/t/2158935.aspx?How+to+Prevent+Duplicate+ID+insert+into+gridview+using+viewstate+

Check the below link.

https://www.aspforums.net/Threads/179753/Prevent-Inserting-duplicate-record-in-ASPNet-GridView-using-JavaScript/

You want it to be done at Client side or server side.?