t_mcy_add.aspx.cs

毕业设计时做的,一个管理关于污染管理的, 源代码,呵呵 想想当时还真厉害,可以实现污染检测

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;
using gyit.Data;

namespace itcrm.jxcManager
{
	/// <summary>
	/// t_mcy_add 的摘要说明。
	/// </summary>
	public class t_mcy_add : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.LinkButton btnQuery;
		protected System.Web.UI.WebControls.LinkButton lbtnReturn;
		protected System.Web.UI.WebControls.TextBox txtQuery;
		protected System.Web.UI.WebControls.Label Label1;
		DBOperator db;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			DataGrid1.DataKeyField="mcy_ID";
			db =DBOperator.CreateObject((string)ConfigurationSettings.AppSettings["DSN"]);
			if(!Page.IsPostBack)
			{
				DataShow();
				
				
			}
		}

		private void DataShow()
		{
			db.Open();
			DataSet ds=null;
			ds=db.exeSqlForDataSet("select * from t_mcy");
			DataGrid1.DataSource=ds;
			DataGrid1.DataBind();
			db.Close();
			Session["t_mcy_add"]=ds;
		}

		#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.btnQuery.Click += new System.EventHandler(this.btnQuery_Click);
			this.lbtnReturn.Click += new System.EventHandler(this.lbtnReturn_Click);
			this.DataGrid1.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_ItemCommand);
			this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.DataGrid1.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_EditCommand);
			this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

//*****  编 辑

		private void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
		   Response.Redirect("t_mcy.aspx?id="+DataGrid1.DataKeys[e.Item.ItemIndex]+"");
			
		}
//****  删 除
		private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			switch(e.Item.ItemType)
			{
				case ListItemType.Item:
				case ListItemType.AlternatingItem:
				case ListItemType.EditItem:
				{
					LinkButton btn=(LinkButton)e.Item.FindControl("lbtnDel");
					btn.Attributes.Add("onclick","return confirm('你是否确定删除这条记录？');");
					break;
				}
			}
		}

		private void DataGrid1_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			if(e.CommandName=="lbtnDel")
			{
				if ( DataGrid1.Items.Count==1 && DataGrid1.CurrentPageIndex>0)
				{
					DataGrid1.CurrentPageIndex= DataGrid1.CurrentPageIndex-1;
					DataGrid1.Dispose();
					BindSession();
				}

				db.Open();
				db.exeSql("delete from t_mcy where mcy_ID='"+(DataGrid1.DataKeys[e.Item.ItemIndex])+"'");
				db.Close();
				BindSession();
			}
		}

		private void lbtnReturn_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("t_mcy.aspx");
		}
//**** 搜索
		private void btnQuery_Click(object sender, System.EventArgs e)
		{
			BindSession();
		}
//****  分页
		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			DataGrid1.CurrentPageIndex=e.NewPageIndex;
			if(Session["t_mcy_add"]!=null)
			{
				DataGrid1.DataSource=(DataSet)Session["t_mcy_add"];
				DataGrid1.DataBind();
			}
		}

		private void BindSession()
		{
			string strSql="select * from t_mcy where dq_Name like '%"+txtQuery.Text+"%'or dq_Name like '%"+txtQuery.Text+"%'or hy_Name like '%"+txtQuery.Text+"%' or Name like '%"+txtQuery.Text+"%' or  Place like '%"+txtQuery.Text+"%'or  mcy_ID like '%"+txtQuery.Text+"%'";
			try
			{
				DataSet ds=null;
				db.Open();
				ds=db.exeSqlForDataSet(strSql);
				db.Close();
				DataGrid1.DataSource=ds;
				DataGrid1.DataBind();
				Session["t_mcy_add"]=ds;
				if(ds!=null)
					ds.Dispose();
				DataGrid1.Dispose();
				
			}
			catch
			{
				Label1.Text="没有相关信息·";
			}
		}
	}
}