您好，提前致谢
我迷路了，我不知道我的代码有什么问题，我一直在尝试遵循 http://www.brianlegg.com/post/2011/05/09/Implementing-your-上的教程own-RoleProvider-and-MembershipProvider-in-MVC-3.aspx 并进行更改以匹配我自己的数据库。
首先是我的数据库脚本（ssms）的相关部分
CREATE TABLE BFS.dbo.BFSSUSER(
ID int IDENTITY(1,1),
RoleID int,
Name nvarchar(50)NOT NULL,
SiteName nvarchar(50)NOT NULL,
UserPassword nvarchar(20),
CONSTRAINT BFSSUSER_pk PRIMARY KEY (ID))
GO
USE BFS
GO
CREATE TABLE BFS.dbo.ROLE(
ID int IDENTITY(1,1),
Name nvarchar(50)NOT NULL
CONSTRAINT ROLE_pk PRIMARY KEY (ID),
CONSTRAINT ROLE_fk FOREIGN KEY (ID) REFERENCES BFSUSER(ID))
GO
好的，现在我正在尝试制作我的提供者并使用存储库类
我将在其中包含我的整个代码，但我无法确定我的错误从哪里开始，我不知道该怎么做
（我的所有 if roleExists 语句都是红色的，让我发疯（34 个错误！！！），我尝试了几种组合让它们消失，并且（我基本上很烂）任何和所有帮助将不胜感激（裸记住我是 asp.net 的新手，不知道任何东西是什么或意味着什么！！）
这是我的代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
namespace BFS.Models
{
public class BFSRepository
{
private BFSEntities entities = new BFSEntities();
private const string MissingRole = "Role does not exist";
private const string MissingUser = "User does not exist";
private const string TooManyUser = "User already exists";
private const string TooManyRole = "Role already exists";
private const string AssignedRole = "Cannot delete a role with assigned users";
#region Properties
public int NumberOfUsers
{
get
{
return this.entities.BFSUSERs.Count();
}
}
public int NumberOfRoles
{
get
{
return this.entities.ROLEs.Count();
}
}
#endregion
#region Constructors
public BFSRepository()
{
this.entities = new BFSEntities();
}
#endregion
#region Query Methods
public IQueryable<BFSUSER> GetAllUsers()
{
return from user in entities.BFSUSERs
orderby user.ID
select user;
}
public BFSUSER GetUser(int id)
{
return entities.BFSUSERs.SingleOrDefault(user => user.ID == id);
}
public BFSUSER GetUser(string userName)
{
return entities.BFSUSERs.SingleOrDefault(user => user.SiteName == userName);
}
FROM HERE ON DOWN IS WHERE ALL MY ERRORS START
"entities does not contain a definition for 'Roles' etc etc missing assem ref
public IQueryable<BFSUSER> GetUsersForRole(string Name)
{
return GetUsersForRole(ROLE(Name));
}
public IQueryable<BFSUSER> GetUsersForRole(int id)
{
return GetUsersForRole(GetRole(id));
}
public IQueryable<ROLE> GetUsersForRole(Roles role)
{
if (!ExistsROLE(role))
throw new ArgumentException(MissingRole);
return from user in entities.BFSUSERs
where user.RoleID == role.ID
orderby user.SiteName
select user;
}
public IQueryable<ROLE> GetAllRoles()
{
return from role in entities.ROLEs
orderby role.Name
select role;
}
public ROLE GetRole(int id)
{
return entities.ROLEs.SingleOrDefault(role => role.ID == id);
}
public ROLE GetRole(string name)
{
return entities.ROLEs.SingleOrDefault(role => role.Name == name);
}
public ROLE GetRoleForUser(string SiteName)
{
return GetRoleForUser(GetUser(SiteName));
}
public ROLE GetRoleForUser(int id)
{
return GetRoleForUser(GetUser(id));
}
public ROLE GetRoleForUser(User user)
{
if (!UserExists(user))
throw new ArgumentException(MissingUser);
return user.Role;
}
#endregion
#region Insert/Delete
private void AddUser(BFSUSER user)
{
if (BFSUSERExists(user))
throw new ArgumentException(TooManyUser);
entities.BFSUSERs.Add(user);
}
public void CreateUser(string name, string SiteName, string UserPassword, string roleName)
{
ROLE role = GetRole(roleName);
if (string.IsNullOrEmpty(SiteName.Trim()))
throw new ArgumentException("The user name provided is invalid. Please check the value and try again.");
if (string.IsNullOrEmpty(name.Trim()))
throw new ArgumentException("The name provided is invalid. Please check the value and try again.");
if (string.IsNullOrEmpty(UserPassword.Trim()))
throw new ArgumentException("The password provided is invalid. Please enter a valid password value.");
if (!roleExists(role))
throw new ArgumentException("The role selected for this user does not exist! Contact an administrator!");
if (this.entities.BFSUSERs.Any(user => user.SiteName == SiteName))
throw new ArgumentException("Username already exists. Please enter a different user name.");
newUser = new User()
{
UserName = SiteName,
Name = name,
Password = FormsAuthentication.HashPasswordForStoringInConfigFile(UserPassword.Trim(), "md5"),
RoleID = role.ID
};
try
{
AddUser(newUser);
}
catch (ArgumentException ae)
{
throw ae;
}
catch (Exception e)
{
throw new ArgumentException("The authentication provider returned an error. Please verify your entry and try again. " +
"If the problem persists, please contact your system administrator.");
}
// Immediately persist the user data
Save();
}
public void DeleteUser( user)
{
if (!UserExists(user))
throw new ArgumentException(MissingUser);
entities.BFSUSERs.DeleteObject(user);
}
public void DeleteUser(string userName)
{
DeleteUser(GetUser(userName));
}
public void AddRole(Roles role)
{
if (RolesExists(role))
throw new ArgumentException(TooManyRole);
entities.Roles.AddObject(role);
}
public void AddRole(string roleName)
{
Role role = new Role()
{
Name = roleName
};
AddRole(role);
}
public void DeleteRole(Role role)
{
if (!RoleExists(role))
throw new ArgumentException(MissingRole);
if (GetUsersForRole(role).Count() > 0)
throw new ArgumentException(AssignedRole);
entities.Roles.DeleteObject(role);
}
public void DeleteRole(string roleName)
{
DeleteRole(GetRole(roleName));
}
#endregion
#region Persistence
public void Save()
{
entities.SaveChanges();
}
#endregion
#region Helper Methods
public bool UserExists(User user)
{
if (user == null)
return false;
return (entities.Users.SingleOrDefault(u => u.ID == user.ID || u.UserName == user.UserName) != null);
}
public bool RoleExists(Roles role)
{
if (role == null)
return false;
return (entities.BFSUSERs.SingleOrDefault(r => r.ID == role.ID || r.Name == role.Name) != null);
}
#endregion
}
}
任何和所有的帮助将不胜感激
特别是在需要表名、变量名等时向我解释或显示。我很困惑，因为我的表名是角色，而我正在做的是角色