s_buyer.aspx.cs

asp.net+sql2000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.Configuration;
using System.Data.SqlClient;

namespace Supermart
{
	/// <summary>
	/// S_buyer 的摘要说明。
	/// </summary>
	public class S_buyer : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Image Image4;
		protected System.Web.UI.WebControls.Image Image1;
		protected System.Web.UI.WebControls.Button btn_putin;
		protected System.Web.UI.WebControls.TextBox txt_buyerName;
		protected System.Web.UI.WebControls.TextBox txt_remark;
		protected System.Web.UI.WebControls.Image Image5;
		protected System.Web.UI.WebControls.DataGrid buyerlist;
		protected System.Web.UI.WebControls.TextBox txt_phone;
		protected System.Web.UI.WebControls.TextBox txt_address;
		private string strConn=System.Configuration.ConfigurationSettings.AppSettings["SQLCONNECTION"];
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			Bindbuylist();
			// 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.btn_putin.Click += new System.EventHandler(this.btn_putin_Click);
			this.buyerlist.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.buyerlist_PageIndexChanged);
			this.buyerlist.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.buyerlist_DeleteCommand);
			this.buyerlist.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.buyerlist_ItemDataBound);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btn_putin_Click(object sender, System.EventArgs e)
		{
			SqlConnection con=new SqlConnection(strConn);
			con.Open();
			SqlCommand ccmd=new SqlCommand("select count(*) from buyer where buyerName='"+this.txt_buyerName.Text+"'",con);
			int count=Convert.ToInt32(ccmd.ExecuteScalar());
			if(count<1)
			{
				string mycmd="insert into buyer(buyerName,buyTime,latestBuy,totalMoney,remark)values('"+this.txt_buyerName.Text.Trim()+"','0',GetDate(),'0.00','"+this.txt_remark.Text.Trim()+"')";
				SqlCommand cmd=new SqlCommand(mycmd,con);
				cmd.ExecuteNonQuery();
				Response.Write("<script>alert(\"添加成功!!\");</script>");
				Bindbuylist();
			}
			else
			{
				Response.Write("<script>alert(\"该顾客已存在!!\");</script>");
			}
			con.Close();
			this.txt_buyerName.Text="";
			this.txt_remark.Text="";
		}
		public void Bindbuylist()
		{
			SqlConnection con=new SqlConnection(strConn);
			con.Open();
			SqlDataAdapter sda=new SqlDataAdapter();
			sda.SelectCommand=new SqlCommand("select * from buyer",con);
			DataSet ds=new DataSet();
			sda.Fill(ds,"title");
			sda.Dispose();
			this.buyerlist.DataKeyField="buyerID";
			this.buyerlist.DataSource=ds.Tables["title"].DefaultView;
			this.buyerlist.DataBind();
			con.Close();
		}

		private void buyerlist_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
			{
				e.Item.Attributes.Add("onmouseover","c=this.style.backgroundColor;this.style.backgroundColor='#6699ff'");
				e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=c");
				((LinkButton)(e.Item.Cells[5].Controls[0])).Attributes.Add("onclick","return confirm('你确认删除吗?');");
			}
		}

		private void buyerlist_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			string empID=this.buyerlist.DataKeys[e.Item.ItemIndex].ToString();
			SqlConnection con=new SqlConnection(strConn);
			con.Open();
			SqlCommand cmd=new SqlCommand("delete from buyer where buyerID='"+empID+"'",con);
			cmd.ExecuteNonQuery();
			Bindbuylist();
		}

		private void buyerlist_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			this.buyerlist.CurrentPageIndex=e.NewPageIndex;
			this.Bindbuylist();
		}
	}
}