Implement Simple Membership , Creating Role & Register admin account With Simple Membership MVC 4

For Creating Role,Login,Registration first we have to Initialize simple membership.
For implement simple membership follow 2 easy steps.

Step 1: Initialize membership in Global.asax file. Copy this function in Global.asax

void initializeMembership()
        {
            if (!WebSecurity.Initialized)
                WebSecurity.InitializeDatabaseConnection("ConnectionString", "UserProfile", "UserId", "UserName", autoCreateTables: true);

        }

And Call this function in Application_Start().
This function create Simple Membership tables in given "ConnectionString" and initialize membership.

Step 2: Add settings in web config.

<profile defaultProvider="SimpleProfileProvider">
      <providers>
        <add name="SimpleProfileProvider" type="WebMatrix.WebData.SimpleMembershipProvider, WebMatrix.WebData" 
             connectionStringName="ConnectionString" applicationName="/" />
      </providers>
    </profile>
    <membership defaultProvider="SimpleMembershipProvider">
      <providers>
        <add name="SimpleMembershipProvider" type="WebMatrix.WebData.SimpleMembershipProvider, WebMatrix.WebData" />
      </providers>
    </membership>
    <roleManager defaultProvider="SimpleRoleProvider">
      <providers>
        <add name="SimpleRoleProvider" type="WebMatrix.WebData.SimpleRoleProvider, WebMatrix.WebData" />
      </providers>
    </roleManager>

Now your simple membership tables are created and simple membership is Initialized.

Creating Role

For Creating Role we use System.Web.Security.Roles Namespace

var role = System.Web.Security.Roles.Provider;
            if (!role.RoleExists("Admin"))
            {
                role.CreateRole("Admin");
            }

Register Admin Account

For Register Admin we use WebMatrix.WebData.WebSecurity namespace

  WebSecurity.CreateUserAndAccount("Admin", "admin123");

add this user to admin role.

   role.AddUsersToRoles(new[] { "Admin" }, new[] { "Admin" });

First Parameter usernames and second roles.