ASP.NET 2.0角色及成员管理

  if  (Membership.ValidateUser (UserName.Text, Password.Text))  {
    MembershipUser user = Membership.GetUser (UserName.Text);
    user.Comment = "0"; //记录登录次数
    RedirectFromLoginPage (UserName.Text, RememberMe.Checked);
    }
     else   {
    MembershipUser user = Membership.GetUser (UserName.Text);
    if (user != null) {
        string count = Convert.ToInt32 (user.Comment) + 1;
         user.Comment = count.ToString ();
    }
}

< configuration >
   < system .web >
     < roleManager  enabled ="true"  cacheRolesInCookie ="true"   />
     <!--  Other roleManager attributes (and their defaults) include:
      cookieName=".ASPXROLES"         // Cookie name
      cookieTimeout="30"              // Cookie lifetime
      cookiePath="/"                  // Cookie path
      cookieRequireSSL="false"        // Restrict cookie to SSL?
      cookieSlidingExpiration="true"  // Renew expiring cookies?
      createPersistentCookie="false"  // Issue persistent cookie?
      cookieProtection="All" />       // Cookie protection level
     -->
   </ system.web >
</ configuration >

< configuration >
   < system .web >
     < roleManager  enabled ="true"  defaultProvider ="AspNetSqlRoleProvider"   />
   </ system.web >
</ configuration >

错误提示:
密码最短长度为 7，其中必须包含以下非字母数字字符: 1

解决方案:
收到以上的消息主要是在创建用户的时候产生的，对于用Asp.net 网站管理工具的时候创建用户也会产生。
主要是密码输入不符合要求，要改变上面的规定时，主要有两种方法:
1.所有的站点都改变。
     找到machine.config文件

< membership >
             < providers >
                 < add  name ="AspNetSqlMembershipProvider"
                    type ="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
                    connectionStringName ="LocalSqlServer"
                    enablePasswordRetrieval ="false"
                    enablePasswordReset ="true"
                    requiresQuestionAndAnswer ="true"
                    applicationName ="/"
                    requiresUniqueEmail ="false"
                    passwordFormat ="Hashed"
                    maxInvalidPasswordAttempts ="5"
                    minRequiredPasswordLength ="7"
                    minRequiredNonalphanumericCharacters ="1"
                    passwordAttemptWindow ="10"
                    passwordStrengthRegularExpression =""   />
             </ providers >
         </ membership >
里面有两个属性,一个是  minRequiredPasswordLength,意思是最长密码，默认为7另一个是minRequiredNonalphanumericCharacters，默认为1，意思是至少有一个非字母字符，只要把它改成0就可以了。

2.假如只是对某一个站点，只要修改web.config的值就ok了
修改如上，把上面的代码插入在 < system .web > 下面就ok了。

如要改成密码规则是"至少6个字符，而不用特殊字符的"，如下：
（注：一定要加上  < remove  name ="AspNetSqlMembershipProvider"   /> ,否则会提示"项“AspNetSqlMembershipProvider”已添加"的出错信息)

             < membership >
             < providers >
                     < remove  name ="AspNetSqlMembershipProvider"   />
                 < add  name ="AspNetSqlMembershipProvider"
                    type ="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
                    connectionStringName ="LocalSqlServer"
                    enablePasswordRetrieval ="false"
                    enablePasswordReset ="true"
                    requiresQuestionAndAnswer ="true"
                    applicationName ="/"
                    requiresUniqueEmail ="false"
                    passwordFormat ="Hashed"
                    maxInvalidPasswordAttempts ="5"
                    minRequiredPasswordLength ="6"
                    minRequiredNonalphanumericCharacters ="0"
                    passwordAttemptWindow ="10"
                    passwordStrengthRegularExpression =""   />
             </ providers >
         </ membership >