ASP.net C#。 Membership.CreateUser 方法 - 缺少引用或程序集。堆叠的

Question

我收到错误：

错误 1 ​​命名空间“LocalGarageFinder.Membership”中不存在类型或命名空间名称“CreateUser”（是否缺少程序集引用？）

我已检查命名空间。全部在.Security.Web.Security；缺什么？请帮忙

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;

using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;
using System.Web.Security;

namespace LocalGarageFinder.Membership
{
    public partial class CreatingUserAccounts : System.Web.UI.Page
    {
        const string passwordQuestion = "What is your favorite color";
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack) SecurityQuestion.Text = passwordQuestion;
        }

        protected void CreateAccountButton_Click(object sender, EventArgs e) 
        { 
          MembershipCreateStatus createStatus; 
          MembershipUser newUser = Membership.CreateUser(Username.Text, Password.Text, Email.Text, passwordQuestion, SecurityAnswer.Text, true, out createStatus); 

            switch (createStatus) 
            { case MembershipCreateStatus.Success: CreateAccountResults.Text = "The user account was successfully created!";
                   break; 
              case MembershipCreateStatus.DuplicateUserName: CreateAccountResults.Text = "There already exists a user with this username."; 
                   break;
              case MembershipCreateStatus.DuplicateEmail: CreateAccountResults.Text = "There already exists a user with this email address."; 
                   break; 
              case MembershipCreateStatus.InvalidEmail: CreateAccountResults.Text = "There email address you provided in invalid."; 
                    break; 
             case MembershipCreateStatus.InvalidAnswer: CreateAccountResults.Text = "There security answer was invalid."; 
                    break; 
             case MembershipCreateStatus.InvalidPassword: CreateAccountResults.Text = "The password you provided is invalid. It must be seven characters long and have at least one non-alphanumeric character.";
                    break; 
             default: CreateAccountResults.Text = "There was an unknown error; the user account was NOT created."; 
                 break; } }
}
}

Answer 1

尝试MembershipUser newUser = System.Web.Security.Membership.CreateUser(...)。编译器似乎正在查找 LocalGarageFinder.Membership，其中确实没有 CreateUser 类型。

Answer 2

这里发生了命名空间冲突。
我想您正在尝试通过调用 Membership.CreateUser 来访问 asp.net 会员资格提供程序，但它找不到它，因为它只是在您的 LocalGarageFinder.Membership 命名空间中查找。

如果您无法将命名空间更改为更易于使用的名称，则可以在对成员资格提供程序的调用前加上完整的命名空间。

这会将您的呼叫更改为：

MembershipUser newUser = System.Web.Security.Membership.CreateUser(Username.Text, Password.Text, Email.Text, passwordQuestion, SecurityAnswer.Text, true, out createStatus);