tb_gwrbz.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.Data.SqlClient;
using System.Configuration;
using gyit.Data;

namespace itcrm.jxcManager
{
	/// <summary>
	/// tb_gwrbz 的摘要说明。
	/// </summary>
	public class tb_gwrbz : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Button btnQuery;
		protected System.Web.UI.WebControls.Button btnAdd;
		protected System.Web.UI.WebControls.Button btnDel;
		protected System.Web.UI.WebControls.TextBox txtQuery;
		DBOperator db;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			DataGrid1.DataKeyField="bz_ID";
			db =DBOperator.CreateObject((string)ConfigurationSettings.AppSettings["DSN"]);
			if(!Page.IsPostBack)
			{
				DataShow();
				
			}
		}
		private void DataShow()
		{
			DataSet ds=null;
			db.Open();
			ds=db.exeSqlForDataSet("select * from tb_gwrbz");
			DataGrid1.DataSource=ds;
			DataGrid1.DataBind();
            Session["gwrbz"]=ds;
			db.Close();
			DataGrid1.Dispose();
		}

		#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.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.DataGrid1.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_EditCommand);
			this.btnAdd.Click += new System.EventHandler(this.btnAdd_Click);
			this.btnDel.Click += new System.EventHandler(this.btnDel_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

	

/// <summary>
/// 分页
/// </summary>
/// <param name="source"></param>
/// <param name="e"></param>
		

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			DataGrid1.CurrentPageIndex=e.NewPageIndex;
			if(Session["gwrbz"]!=null)
			{
				DataGrid1.DataSource=(DataSet)Session["gwrbz"]; 
				DataGrid1.DataBind();
			}

		}

		private void btnQuery_Click(object sender, System.EventArgs e)
		{
			Query();
		}
/// <summary>
/// 查询
/// </summary>
			private void Query()
			{
				string strSql="select * from tb_gwrbz where bz_ID like '%"+txtQuery.Text+"%'or BM like '%"+txtQuery.Text+"%'";
				try
				{
					DataSet ds=null;
					db.Open();
					ds=db.exeSqlForDataSet(strSql);
					db.Close();
					DataGrid1.DataSource=ds;
					DataGrid1.DataBind();
					Session["gwrbz"]=ds;
					if(ds!=null)
						ds.Dispose();
				
				}
				catch
				{
					Label1.Text="没有相关信息·";
				
				}

			}

		private void btnAdd_Click(object sender, System.EventArgs e)
		{
			Page.Response.Redirect("tb_gwrbzAdd.aspx");
		}

		private void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			Page.Response.Redirect("tb_gwrbzAdd.aspx?id="+DataGrid1.DataKeys[e.Item.ItemIndex]+"");
		}
/// <summary>
/// 删除
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
		private void btnDel_Click(object sender, System.EventArgs e)
		{
			bool IsChecked=false;
			foreach(DataGridItem CheckBoxItem in  DataGrid1.Items)
			{    
				IsChecked=((CheckBox)CheckBoxItem.FindControl("checkDel")).Checked;
				if (IsChecked)
				{
							
					try
					{
						db.Open();
						db.exeSql("delete from tb_gwrbz where bz_ID='"+DataGrid1.DataKeys[CheckBoxItem.ItemIndex].ToString()+"'");
						db.Close();
					}
					catch (System.Exception ee)
					{
						Page.RegisterStartupScript("script","<script>alert('"+ee.Message+"')</script>");
					}
				}
			}
			Query();
		}
		
	}
}