login.ascx.cs

客户关系管理系统

namespace HKeBookshop.usercontrol
{
	using System;
	using System.Data;
	using System.Drawing;
	using System.Web;
	using System.Web.UI.WebControls;
	using System.Web.UI.HtmlControls;

	/// <summary>
	///		login 的摘要说明。
	/// </summary>
	public class login : System.Web.UI.UserControl
	{
		protected System.Web.UI.WebControls.TextBox userid;
		protected System.Web.UI.WebControls.TextBox userpassword;
		protected System.Web.UI.WebControls.Button sub;
		string strsql="";
		myclass MyClass = new myclass();
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Button rest;
		protected System.Web.UI.WebControls.Label success;
		DataSet ds = new DataSet();
		protected System.Web.UI.WebControls.Button regist;
		protected System.Web.UI.WebControls.Image Image1;
		protected System.Web.UI.WebControls.Button loginout;
		protected System.Web.UI.WebControls.HyperLink shopcar;
		protected System.Web.UI.WebControls.HyperLink changepassword;
		protected System.Web.UI.WebControls.HyperLink info;
	
		
		string sessinname;

		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 (Session["name"]!="")
			{
				sessinname = Session["name"].ToString();
				
				Label2.Visible=false;
				Label3.Visible=false;
				sub.Visible = false;
				rest.Visible = false;
				userid.Visible=false;
				userpassword.Visible=false;
				changepassword.Visible = true;
				info.Visible=true;
				success.Text="登录成功<br>" + userid.Text + "欢迎您!";
			}
		}

		#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.sub.Click += new System.EventHandler(this.sub_Click);
			this.rest.Click += new System.EventHandler(this.rest_Click);
			this.regist.Click += new System.EventHandler(this.Button1_Click);
			this.loginout.Click += new System.EventHandler(this.loginout_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void sub_Click(object sender, System.EventArgs e)
		{
			strsql="select userpassword from T_user where userid='" + userid.Text + "'";
			ds=MyClass.Readdate(strsql);
			if (ds.Tables["myDB"].Rows.Count!=0)
			{
				string Userpassword = ds.Tables["myDB"].Rows[0][0].ToString();
				string sure = MyClass.md5(userpassword.Text);
				if (sure == Userpassword)
				{
					Session["name"]=userid.Text;
					
					
					
					Label2.Visible=false;
					Label3.Visible=false;
					sub.Visible = false;
					rest.Visible = false;
					userid.Visible=false;
					userpassword.Visible=false;
					shopcar.Visible=true;
					loginout.Visible = true;
					regist.Visible = false;
					changepassword.Visible = true;
					info.Visible =true;
					success.Text="登录成功  " + userid.Text + "欢迎您!";
					

				}
				else
				{
					Response.Write("<script>alert('密码输入错误')</script>");
				}
			}
			else
			{
				Response.Write("<script>alert('用户名不存在')</script>");
			}
		}

		private void rest_Click(object sender, System.EventArgs e)
		{
			userid.Text = "";
			userpassword.Text = "";
		}

		private void loginout_Click(object sender, System.EventArgs e)
		{
			Session["name"]="";
			Response.Redirect("index.aspx");
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("userregist.aspx");
		}

		private void shopcar_Click(object sender, System.EventArgs e)
		{
			//Response.Redirect();
		}
	}
}