解析器錯誤消息：無法從程序集加載類型

Question

我想爲我的應用程序添加roleprovider，但由於解析器錯誤，我遇到了麻煩。

這裏是我的文件：

這是我的web配置：

<roleManager defaultProvider ="roleProvider" enabled="true"> 
    <providers> 
     <add name="roleprovider" type="MvcApplication6.roleprovider,MvcApplication6"/> 
    </providers> 
    </roleManager> 

我一直在得到該Parser Error Message: Could not load type 'roleprovider' from assembly 'MvcApplication6'。

我嘗試了幾種方法，如添加到App_code。

我該如何解決此問題？我嘗試了其他解決方案，但他們不適合我。我可能做錯了，所以請幫助。

Answer 1

您可以創建一個文件夾，名爲Helper和嘗試這個辦法：

<roleManager cacheRolesInCookie="true" defaultProvider="CustomRoleProvider" enabled="true"> 
     <providers> 
     <clear /> 
     <add name="CustomRoleProvider" type="MvcApplication6.Helper.CustomRoleProvider"/> 
     </providers> 
</roleManager> 

一件事：確保你實現一個正確的方式CustomRoleProvider：使用系統 ; using System.Web.Security;

namespace MvcApplication6.Helper 
{ 
    public class CustomRoleProvider : RoleProvider 
    { 
     public override bool IsUserInRole(string username, string roleName) 
     { 
      if (username.ToLowerInvariant() == "test" && roleName.ToLowerInvariant() == "User") 
       return true; 
      // blabla ... 
      return false; 
     } 

     public override string[] GetRolesForUser(string username) 
     { 
      if (username.ToLowerInvariant() == "test") 
      { 
       return new[] { "User", "Helpdesk" }; 
      } 

      if(username.ToLowerInvariant()=="test2") 
      { 
       return new [] { "Admin" }; 
      } 

      return new string[] { }; 
     } 

     public override void AddUsersToRoles(string[] usernames, string[] roleNames) 
     { 
      throw new NotImplementedException(); 
     } 

     public override string ApplicationName 
     { 
      get 
      { 
       throw new NotImplementedException(); 
      } 
      set 
      { 
       throw new NotImplementedException(); 
      } 
     } 

     public override void CreateRole(string roleName) 
     { 
      throw new NotImplementedException(); 
     } 

     public override bool DeleteRole(string roleName, bool throwOnPopulatedRole) 
     { 
      throw new NotImplementedException(); 
     } 

     public override string[] FindUsersInRole(string roleName, string usernameToMatch) 
     { 
      throw new NotImplementedException(); 
     } 

     public override string[] GetAllRoles() 
     { 
      throw new NotImplementedException(); 
     }   

     public override string[] GetUsersInRole(string roleName) 
     { 
      throw new NotImplementedException(); 
     }   

     public override void RemoveUsersFromRoles(string[] usernames, string[] roleNames) 
     { 
      throw new NotImplementedException(); 
     } 

     public override bool RoleExists(string roleName) 
     { 
      throw new NotImplementedException(); 
     } 
    } 
}