Custom Login Web Part In SharePoint 2010 Forms Based

Question

Hi ,
Im trying to make Custom Login Web Part In SharePoint 2010 Forms Based , all membership configration is done . 
my question is why (Login1.username , Login1.password ) give this error : 
 login1 does not exist in the current context
protected
void
Login1_Authenticate(object
sender, AuthenticateEventArgs e)
02        {
03            string
membership = "MembershipProvider";
04            string
role = "RoleProvider";
05 
06            e.Authenticated
= SPClaimsUtility.AuthenticateFormsUser(new
Uri(SPContext.Current.Web.Url),Login1.UserName,Login1.Password);
07 
08            if
(!e.Authenticated) return;
09 
10            SecurityToken
token = SPSecurityContext.SecurityTokenForFormsAuthentication(new
Uri(SPContext.Current.Web.Url), membership, role,
Login1.UserName,
Login1.Password);

Answer 1

Error 1 No overload for method 'SecurityTokenForFormsAuthentication' takes 3 arguments
Error 2 The name Wss doesnot exisit in current context 
Can anyone give sugeestion please 
cant recitfy this error 
protected void Login1_Authenticate(object sender,
AuthenticateEventArgs e)
02        {
03            string membership
= "MembershipProvider";
04            string role
= "RoleProvider";
05 
06            e.Authenticated
= SPClaimsUtility.AuthenticateFormsUser(newUri(SPContext.Current.Web.Url),Login1.UserName,Login1.Password);
07 
08            if (!e.Authenticated) return;
09 
10            SecurityToken
token = SPSecurityContext.SecurityTokenForFormsAuthentication(newUri(SPContext.Current.Web.Url),
membership, role,
Login1.UserName,
Login1.Password);