default.aspx.cs

是一个教材管理系统

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;
using System.Data.SqlClient;
using System.Web.Security;

namespace BookManager
{
	/// <summary>
	/// login 的摘要说明。
	/// </summary>
	public class Default : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox tbPassWord;
		protected System.Web.UI.WebControls.Button btSumbit;
		protected System.Web.UI.WebControls.DropDownList dpType;
		protected System.Data.SqlClient.SqlConnection sqlConn;
		protected System.Web.UI.WebControls.RequiredFieldValidator rvfName;
		protected System.Web.UI.WebControls.RequiredFieldValidator rvfPassWord;
		protected System.Web.UI.WebControls.TextBox tbName;
		protected System.Web.UI.WebControls.Button btReset;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!IsPostBack)
			{
				this.DataBinds();
			}
		}

		private void DataBinds()
		{
			string sqlStr;
			sqlStr="select RoleName from tblRole";
			SqlCommand cmd=new SqlCommand(sqlStr,sqlConn);
			sqlConn.Open();
			SqlDataReader rder=cmd.ExecuteReader();
			while(rder.Read())
			{
				dpType.Items.Add(rder["RoleName"].ToString());
			}
			rder.Close();
			sqlConn.Close();
		}
		

		private void Vad()
		{
			string sqlStr,Md5PassWord;
			Md5PassWord=FormsAuthentication.HashPasswordForStoringInConfigFile(tbPassWord.Text.ToString(),"MD5");
			sqlStr="select * from tblUser where UserName=@UserName and PassWord=@PassWord and Role=@Role";
			SqlCommand cmd=new SqlCommand(sqlStr,sqlConn);
			cmd.Parameters.Add("@UserName",tbName.Text.ToString());
			cmd.Parameters.Add("@PassWord",Md5PassWord);
			cmd.Parameters.Add("@Role",dpType.SelectedIndex.ToString());
			sqlConn.Open();
			SqlDataReader rder=cmd.ExecuteReader();
			if(rder.Read())
			{
				FormsAuthentication.SetAuthCookie(tbName.Text,false);
				Session["Role"]=dpType.SelectedIndex.ToString();
				Session["RoleName"]=dpType.SelectedValue.ToString();
				Response.Redirect("index.htm",true);
			}
			rder.Close();
			sqlConn.Close();
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.sqlConn = new System.Data.SqlClient.SqlConnection();
			this.btSumbit.Click += new System.EventHandler(this.btSumbit_Click);
			this.btReset.Click += new System.EventHandler(this.btReset_Click);
			// 
			// sqlConn
			// 
			this.sqlConn.ConnectionString = "workstation id=QMX;packet size=4096;user id=sa;data source=\"QMX\\THUNDER\";persist " +
				"security info=True;initial catalog=BookManager;password=gliu0307";
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btReset_Click(object sender, System.EventArgs e)
		{
			tbName.Text="";
		}

		private void btSumbit_Click(object sender, System.EventArgs e)
		{
			this.Vad();
		}
	}
}