Multiple submit Button click problem?

Question

I have a form which inserts data in DB on Submit button click but the problem is when client click the button multiple times its sends multiple create requests means multipl

Answer 1

Include a unique id in a field. Then on the server check if the request has already been processed.

As an ID you can generate a GUID. Then you just need some structure to collect currently valid IDs. For example a Dictionary. Then from time to time you can clear old IDs out of the structure, and of course remove it when it is used.