成员身份服务1 Membership的CreateUser方法

成员身份API通过两个新的类来实现：Membership和MembershipUser，它们是一对很好的配合搭档。前者包含了用于创建用户、验证用户以及完成其他工作（找回一个membershipUser实例，更新一个membershipUser实例，通过不同条件寻找一个用户，获得当前在线用户数量，删除一个已经不再需要的账户）的静态方法。MembershipUser代表当个用户，它包含了用于检索和更改密码、获得上次登录日期以及完成类似工作方法和属性。

Membership的CreateUser方法：

1、注册数据库，打开c:\windows\microsoft.net\framework\v2.05727\aspnet_regsql.exe接着就是一步步的把数据库创建。这里我自己创建了一个名为membershipdemo数据库。

2、在web.config配置文件对membership进行相关设置。

<membership defaultProvider="AspNetSqlMembershipProvider" userIsOnlineTimeWindow="15" hashAlgorithmType="">
 2 <providers>
 3 <clear/>
 4 <add connectionStringName="ConnectionString"
 5                 enablePasswordRetrieval="false"
 6                 enablePasswordReset="true"
 7                 requiresQuestionAndAnswer="true"
 8                 applicationName="/"
 9                 requiresUniqueEmail="false"
10                 passwordFormat="Hashed"
11                 maxInvalidPasswordAttempts="5"
12                 minRequiredPasswordLength="7"
13                 minRequiredNonalphanumericCharacters="1"
14                  passwordAttemptWindow="10"
15                  passwordStrengthRegularExpression=""
16                  name="AspNetSqlMembershipProvider"
17                   type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
18 </providers>
19 </membership>

3、配置相应的连接字符串。

<connectionStrings>
2 <add name="ConnectionString"  connectionString="server=(local);database=membershipdemo;uid=sa;pwd=123456"/>
3 </connectionStrings>

4、在新的项目文件页面中定义如下图表格：

5、创建用户事件，代码如下：

publicvoid CreateUser_OnClick(object sender, EventArgs args)
 2     {
 3 try
 4         {
 5             MembershipCreateStatus status;
 6             MembershipUser newUser = Membership.CreateUser(UsernameTextbox.Text, PasswordTextbox.Text,EmailTextbox.Text,PasswordQuestionTextbox.Text,PasswordAnswerTextbox.Text,true,out status);
 7 
 8             Response.Redirect("login.aspx");
 9         }
10 catch (MembershipCreateUserException e)
11         {
12             Msg.Text = GetErrorMessage(e.StatusCode);
13         }
14 catch (HttpException e)
15         {
16             Msg.Text = e.Message;
17         }
18     }

6、出错处理（这是借鉴他人的）：

publicstring GetErrorMessage(MembershipCreateStatus status)
 2     {
 3 switch (status)
 4         {
 5 case MembershipCreateStatus.DuplicateUserName:
 6 return"Username already exists. Please enter a different user name.";
 7 
 8 case MembershipCreateStatus.DuplicateEmail:
 9 return"A username for that e-mail address already exists. Please enter a different e-mail address.";
10 
11 case MembershipCreateStatus.InvalidPassword:
12 return"The password provided is invalid. Please enter a valid password value.";
13 
14 case MembershipCreateStatus.InvalidEmail:
15 return"The e-mail address provided is invalid. Please check the value and try again.";
16 
17 case MembershipCreateStatus.InvalidAnswer:
18 return"The password retrieval answer provided is invalid. Please check the value and try again.";
19 
20 case MembershipCreateStatus.InvalidQuestion:
21 return"The password retrieval question provided is invalid. Please check the value and try again.";
22 
23 case MembershipCreateStatus.InvalidUserName:
24 return"The user name provided is invalid. Please check the value and try again.";
25 
26 case MembershipCreateStatus.ProviderError:
27 return"The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
28 
29 case MembershipCreateStatus.UserRejected:
30 return"The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
31 
32 default:
33 return"An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator.";
34         }
35     }