i want to execute Store procedure via asp.net code, behind submit button, (SIGNUP)
and also for login . how should i run store procedure ?
and store procedure is in DB(sql).

You must have to post relevant code that you've written so far, name of Database product that you're using, and Stored-Proc desciption (name along with parameters type).

Generally, we use ADO.NET core Provider API - Connection,Command,DataReader classes to execute Stored-procedures/functions/queries.