getrolesforuser.aspx.cs

《圣殿祭司的ASP.NET 2.0开发详解——使用C#》光盘内容.包含了书籍所含的源代码.非常经典的一本asp.net2.0的书籍

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 GetRolesForUser : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		if (!IsPostBack)
		{
			LoadUsers();//载入所有用户到DropDownList
		}
    }

	//载入所有用户到DropDownList
	private void LoadUsers()
	{
		dwnUsers.DataSource = Membership.GetAllUsers();
		dwnUsers.DataBind();
		ShowRolesForUser();
	}

	protected void dwnUsers_SelectedIndexChanged(object sender, EventArgs e)
	{
		ShowRolesForUser();
	}

	//将用户所属的角色显示在GridView中
	private void ShowRolesForUser()
	{
		string[] RolesArray = Roles.GetRolesForUser(dwnUsers.SelectedItem.Text);
		if (RolesArray.Length > 0)
		{
			lbRoles.Text = dwnUsers.SelectedItem.Text + "所属的角色如下：";
			gviewRoles.Visible = true;
			gviewRoles.DataSource = RolesArray;
			gviewRoles.DataBind();
		}
		else
		{
			lbRoles.Text = dwnUsers.SelectedItem.Text+"不属于任何角色";
			gviewRoles.Visible = false;
		}
	}
}