原文发布时间为：2008-07-30 —— 来源于本人的百度文章 [由搬家工具导入]

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

public partial class admin_rolegroup : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {          
            ListBox1.DataSource = Membership.GetAllUsers();
            ListBox1.DataBind();
            ListBox2.DataSource = Roles.GetAllRoles();
            ListBox2.DataBind();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string user = ListBox1.SelectedValue;
        string role = ListBox2.SelectedValue;

        if (!Roles.IsUserInRole(user, role))
        {
            Roles.AddUserToRole(user, role);
        }
        else
        {
            Response.Write("user is in the role");
        }
        ListBox3.DataSource = Roles.GetUsersInRole(role);
        ListBox3.DataBind();
    }

    protected void Button2_Click(object sender, EventArgs e)
    {
        if(ListBox3.Items.Count>0)
        {
            string user = ListBox3.SelectedValue;
            string role = ListBox2.SelectedValue;

            if(Roles.IsUserInRole(user,role))
            {
                Roles.RemoveUserFromRole(user,role);
            }
            else
            {
                Response.Write("user is not in the role");
            }
            ListBox3.DataSource = Roles.GetUsersInRole(role);
            ListBox3.DataBind();
        }
    }
protected void ListBox2_SelectedIndexChanged(object sender, EventArgs e)
{
    string role=ListBox2.SelectedValue;
    ListBox3.DataSource=Roles.GetUsersInRole(role);
    ListBox3.DataBind();
}
}

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

public partial class admin_role : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            ListBox1.DataSource = Roles.GetAllRoles();
            ListBox1.DataBind();
        }

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Roles.CreateRole(TextBox1.Text);
        ListBox1.Items.Add(TextBox1.Text);
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        Roles.DeleteRole(ListBox1.SelectedValue);
        ListBox1.Items.Remove(ListBox1.SelectedItem);
    }
}

net6：用户添加到角色和移出角色，角色的创建与删除等Roles与Membership的使用