createdeleteroles.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 CreateDeleteRoles : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		if (!IsPostBack)
		{
			ShowRole();  //显示角色
		}
    }

	//显示所有的角色
	private void ShowRole()
	{
		//取得所有角色并显示在GridView
		string[] RolesArray = Roles.GetAllRoles();
		if (RolesArray.Length > 0)
		{
			gviewRole.DataSource = RolesArray;
			gviewRole.DataBind();


			tvRoles.Nodes.Clear();
			for (int i = 0; i < RolesArray.Length; i++)
			{
				TreeNode nodeRole = new TreeNode();
				nodeRole.Text = RolesArray[i];
				//nodeRole.ImageUrl = "~/Images/people.gif";
				tvRoles.Nodes.Add(nodeRole);
			}
		}
	}

	//加入新的角色
	protected void btnAddRole_Click(object sender, EventArgs e)
	{
		try
		{
			Roles.CreateRole(txtRole.Text);
			ShowRole();
			new AlertMessage().showMsg(this.Page, "创建角色成功！");
		}
		catch (Exception ex)
		{
			txtMsg.Text = ex.Message.ToString();
		}
	}

	//删除既有的角色
	protected void btnDelRole_Click(object sender, EventArgs e)
	{
		try
		{
			Roles.DeleteRole(txtRole.Text);	//删除角色
			ShowRole();	//重新显示角色
			new AlertMessage().showMsg(this.Page, "删除角色成功！");
		}
		catch (Exception ex)
		{
			txtMsg.Text = ex.Message.ToString();
		}
	}
}