assignroles.aspx.cs

基于角色的用户验证. 这个程序重点写了四个pages以实现这些功能：增加用户

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace RolesBasedAthentication.Web
{
	public class AssignRoles : Web.PageBase
	{
		protected System.Web.UI.WebControls.DropDownList RoleList;
		protected System.Web.UI.WebControls.Button AddRole;
		protected System.Web.UI.HtmlControls.HtmlInputHidden RoleIDHidden;
		protected System.Web.UI.WebControls.Button RemoveFromRole;
		protected System.Web.UI.WebControls.Repeater RolesRepeater;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!Context.User.Identity.IsAuthenticated)
				Response.Redirect("Login.aspx");

			if (!((SitePrincipal)Context.User).IsInRole("Site Admin"))
				Response.Redirect("Login.aspx");

			if (Request.QueryString["id"] != null)
			{
				if (!Page.IsPostBack)
				{
					DataTable roles = Role.GetRoles().Tables[0];
					RoleList.DataSource = roles;
					RoleList.DataTextField = roles.Columns[1].ToString();
					RoleList.DataValueField = roles.Columns[0].ToString();
					RoleList.DataBind();

					BindData();
				}
			}
			else
				Response.Redirect("Default.aspx");
		}

		private void BindData()
		{
			RolesBasedAthentication.User user = new User(int.Parse(Request.QueryString["id"]));
			RolesRepeater.DataSource = user.GetRoles();
			RolesRepeater.DataBind();
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			base.OnInit(e);
			InitializeComponent();
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.AddRole.Click += new System.EventHandler(this.AddRole_Click);
			this.RemoveFromRole.Click += new System.EventHandler(this.RemoveFromRole_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void AddRole_Click(object sender, System.EventArgs e)
		{
			RolesBasedAthentication.User user = new User(int.Parse(Request.QueryString["id"]));
			user.AddToRole(int.Parse(RoleList.SelectedItem.Value));

			BindData();
		}

		private void RemoveFromRole_Click(object sender, System.EventArgs e)
		{
			RolesBasedAthentication.User user = new User(int.Parse(Request.QueryString["id"]));
			user.RemoveFromRole(int.Parse(RoleList.SelectedItem.Value));

			BindData();
		}
	}
}