how to check duplicates

Question

i have text one text box and one button when i click on button text box data save and i bind the data to grid here i dont allow duplicates in textbox or grid .how to check

Midhun T P · Answer

Hi Assuming that you are saving data to your database why don't you keep a check on button click whether data is already present in database or not? If data is available in database then prevent it from saving again.

Rajeesh Menoth · Answer

Hi You need to check before submitting data into db. Please check the following reference : http://forums.asp.net/t/1917312.aspx?Restricting+or+checking+for+duplicate+entry+in+database+before+saving+ http://www.aspsnippets.com/Articles/ASP.Net---Prevent-DuplicateDouble-Inserts-when-Page-is-refreshed.aspx