webform2.aspx.cs

一个简单的超市管理系统

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.IO;
namespace SuperMaket1
{
	/// <summary>
	/// WebForm2 的摘要说明。
	/// </summary>
	public partial class WebForm2 : System.Web.UI.Page
	{
	     private SqlCommand mycom;
		protected System.Timers.Timer timer1;
		private const string log="d:\\.gga.txt";
          private SqlConnection mycon;
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
		}

		#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.timer1 = new System.Timers.Timer();
			((System.ComponentModel.ISupportInitialize)(this.timer1)).BeginInit();
			// 
			// timer1
			// 
			this.timer1.Enabled = true;
			this.timer1.Interval = 1000;
			this.timer1.Elapsed += new System.Timers.ElapsedEventHandler(this.timer1_Elapsed);
			((System.ComponentModel.ISupportInitialize)(this.timer1)).EndInit();

		}
		#endregion

		protected void Button1_Click(object sender, System.EventArgs e)
		{
			SqlConnection conn=new SqlConnection();
			conn.ConnectionString="server=(local);uid=sa;password=;database=gga;";
			conn.Open();
			SqlCommand cmd=new SqlCommand("select *from production",conn);
			SqlDataReader dr=cmd.ExecuteReader();
			DataGrid1.DataSource=dr;
			DataGrid1.DataBind();
		}

		protected void Button2_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("WebForm3.aspx");
		}

		protected void Button3_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("WebForm4.aspx");
		}

		protected void Button5_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("WebForm1.aspx");
		}

		protected void Button4_Click(object sender, System.EventArgs e)
		{
			string Cstring="server=(local);uid=sa;password=;database=gga;";
			string sqlstr="delete from production where 产品编号='"+TextBox1.Text+"'";
			mycon=new SqlConnection(Cstring);
			mycon.Open();
			mycom=new SqlCommand();
			mycom.Connection=mycon;
			mycom.CommandType=CommandType.Text;
			mycom.CommandText=sqlstr;
			mycom.ExecuteNonQuery();
			mycon.Close();
			TextBox1.Text="";
		}

		protected void Button6_Click(object sender, System.EventArgs e)
		{
//			string Cstring="server=(local);uid=sa;password=sa;database=gga;";
//			string sqlstr="select *from production where pid='"+TextBox2.Text+"'";
//			mycon=new SqlConnection(Cstring);
//			mycon.Open();
//			mycom=new SqlCommand();
//			mycom.Connection=mycon;
//			mycom.CommandType=CommandType.Text;
//			mycom.CommandText=sqlstr;
//			mycom.ExecuteNonQuery();
//			mycon.Close();
//			TextBox2.Text="";
			SqlConnection conn=new SqlConnection();
			conn.ConnectionString="server=(local);uid=sa;password=;database=gga;";
			conn.Open();
			SqlCommand cmd=new SqlCommand("select *from production where 产品编号='"+TextBox2.Text+"'",conn);
			SqlDataReader dr=cmd.ExecuteReader();
			DataGrid1.DataSource=dr;
			DataGrid1.DataBind();
			TextBox2.Text="";
		}

		protected void TextBox1_TextChanged(object sender, System.EventArgs e)
		{
		
		}

		protected void TextBox2_TextChanged(object sender, System.EventArgs e)
		{
		
		}

		protected void Button7_Click(object sender, System.EventArgs e)
		{
			timer1.Start();

		}

		private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
		{
			FileStream gga=new FileStream(log,FileMode.Append,FileAccess.Write);
			StreamWriter swr=new StreamWriter(gga);
			swr.WriteLine(System.DateTime.Now.ToString());
			swr.Close();
			swr.Close();
		}

		protected void Button8_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("WebForm6.aspx");
		}

		protected void Button9_Click(object sender, System.EventArgs e)
		{
		Response.Redirect("WebForm5.aspx");
		}
	}
}