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

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            //取所有用户
            this.ListBox1.DataSource = Membership.GetAllUsers();
            this.ListBox1.DataBind();

            //取所有角色
            this.CheckBoxList1.DataSource = Roles.GetAllRoles();
            this.CheckBoxList1.DataBind();

            this.Label1.Text = "";
            foreach (string s in Roles.GetRolesForUser())
            {
                Label1.Text += s + ";";
            }
           // this.Label1.Text = Roles.GetRolesForUser().ToString();

        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //Membership.DeleteUser(username);//删除用户

        try
        {
            Roles.CreateRole(this.TextBox1.Text);
            Label1.Text = "成功";
        }
        catch (Exception ex)
        {

            this.Label1.Text = ex.Message;
        }
    }
    protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        //根据用户看他有什么角色
        //取当前要查看的用户
        string username = this.ListBox1.SelectedItem.Text;
        //看用户有什么角色
        //string[] hasroles = Roles.GetRolesForUser(username);
        foreach (ListItem li in CheckBoxList1.Items)
        {
            //取当前判断的角色
            string role = li.Text;
            //用户是否在这个角色里？
            if (Roles.IsUserInRole(username, role))
            {
                li.Selected = true;
            }
            else
            {
                li.Selected = false;
            }
        }

        //显示用户的email
        MembershipUser user = Membership.GetUser(username);
        this.TextBox2.Text = user.Email;

    }
    protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        //取当前用户
        string username = this.ListBox1.SelectedItem.Text;

        foreach (ListItem li in CheckBoxList1.Items)
        {
            //取当前判断的角色
            string role = li.Text;
            //是否选中
            bool isinrole = li.Selected;

            if (isinrole)
            {
                //添加到角色中
                //先判断是否已在角色中
                if (Roles.IsUserInRole(username, role))
                {
                }
                else
                {
                    Roles.AddUserToRole(username, role);
                }

            }
            else
            {
                if (Roles.IsUserInRole(username, role))
                {
                    Roles.RemoveUserFromRole(username, role);
                }
                
            }


        }



    }
}

------解决方案--------------------

http://cache.baidu.com/c?m=9d78d513d99c16f008bad43f574d9571182497153ac0a01368a5935fe4144f060738ece161645213d2b6617a44ea0c4bea873171644262fd8cc8ff1b80e48f4e7cdd662973168c5c&p=882a921893904eaa40b6cf391b&user=baidu


看看这个！~

------解决方案--------------------

http://www.51aspx.com/Tags/188/