addgoods.aspx.cs

有关购物的程序

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace shopping.受保护窗体
{
	/// <summary>
	/// addgoods 的摘要说明。
	/// </summary>
	public class addgoods : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label9;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.TextBox TextBox8;
		protected System.Web.UI.WebControls.Label Label8;
		protected System.Web.UI.WebControls.TextBox TextBox7;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.TextBox TextBox6;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.TextBox TextBox5;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.TextBox TextBox4;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.CustomValidator CustomValidator1;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Label Label1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			this.Label9.Text="尊敬的"+Session["username"].ToString()+"店主!你好！你可以添加你的商品>>";
		}

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.CustomValidator1.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.CustomValidator1_ServerValidate);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid)
			{
				string str="Provider=Microsoft.Jet.OleDb.4.0;";
				str+=@"Data Source=";
				str+=Server.MapPath("usergoods.mdb");
				OleDbConnection conn=new OleDbConnection(str);
				conn.Open();
				string strsql="insert into goods values('"+this.TextBox1.Text+"','"+this.TextBox2.Text+"',"+this.TextBox3.Text+","+this.TextBox4.Text+",'"+this.TextBox5.Text+"','"+this.TextBox6.Text+"','"+this.TextBox7.Text+"','"+this.TextBox8.Text+"')";
				OleDbCommand comm=new OleDbCommand(strsql,conn);
				comm.CommandType=CommandType.Text;
				comm.ExecuteNonQuery();
				comm.CommandText="insert into Mygoods values('"+Session["username"].ToString()+"','"+this.TextBox1.Text+"','"+this.TextBox2.Text+"')";
				comm.ExecuteNonQuery();
				conn.Close();
				Response.Redirect("Myshop.aspx");
				
			}
		}

		private void CustomValidator1_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			
			args.IsValid=false;
			string str="Provider=Microsoft.Jet.OleDb.4.0;";
			str+=@"Data Source=";
			str+=Server.MapPath("usergoods.mdb");
			OleDbConnection conn=new OleDbConnection(str);
			conn.Open();
			string strsql="select count(*) from goods where 商品号='"+args.Value+"'";
			OleDbCommand comm=new OleDbCommand(strsql,conn);
			comm.CommandType=CommandType.Text;
			int num=(int)comm.ExecuteScalar();
			if(num==0)
				args.IsValid=true;
			conn.Close();
		}
	}
}