How does Membership.ValidateUser method access a database?

Question

I wanted to build a membership system at the beginning of my MVC project and I used Membership.ValidateUser method to verify credentials. However I could not understand how does this method access my database and check my email and password informations.

[HttpPost]
[ActionName("Login")]
public ActionResult Login(LoginModel loginModel)
{
        if (Membership.ValidateUser(loginModel.Email, loginModel.Password))
        {
            FormsAuthentication.SetAuthCookie(loginModel.Email, true);
            return Json(true);
        }

        return new JsonNetResult() 
        { Data = new { Error = true, Messages = new[] { new { Message = "Wrong username or password" } } } };
}

Solution

It' used the MembershipProvider specified on your Web.config file to validate the user. By default, it uses DefaultMembershipProvider

Comments

[user2923864]

<add name="MyMembershipProvider" type="MyProject.Domain.Administration.Domain.Membership.MyMe‌​mbershipProvider" connectionStringName="MembershipDb" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" maxInvalidPasswordAttempts="99" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" /> how does it get which database or table i use to hold my credentials

[Paul Zahra]

Your data store is defined in your connection string which is referenced in the code in your comment by connectionStringName="MembershipDb" so it uses the DB in your connection string you've defined in your web.config named MembershipDb