As mentioned in this link
I have hashed the password and stored LogIn details in my Database table.
Now I’m using LogIn page of already existing ASP.NET page (through Account folder that is in-built).. How do I make this page to interact with my DB and redirect to his/her profile?
If you are using
asp.net membershipproviderAfter you obtain the username and password you can call Membership.ValidateUser method.
eg
Read more about Use Membership in ASP.NET