chaxun.aspx.cs

这是一个基于ＷＥＢ的电场耗水量管理与分析系统

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;
namespace nicholasbjj
{
	/// <summary>
	/// Summary description for yonghuguanli.
	/// </summary>
	public class yonghuguanli : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Button Button3;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.DropDownList DropDownList2;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
			if(!Page.IsPostBack)
			{
				string sql="select * from [company]";
				string strConn="Server=(local);User ID=sa;Database=bjj;PassWord=temo456";
				SqlConnection conn=new SqlConnection(strConn);
				SqlCommand cmd=new SqlCommand();
				SqlDataReader reader;
				cmd.Connection=conn;
				cmd.CommandText=sql;
				conn.Open();
				reader=cmd.ExecuteReader();
				DropDownList1.DataSource=reader;
				DropDownList1.DataTextField="comname";
				DropDownList1.DataValueField="comid";
				DropDownList1.DataBind();
				reader.Close();
				conn.Close();
				string sql1="select * from [szbsj]";
				string strConn1="Server=(local);User ID=sa;Database=bjj;PassWord=temo456";
				SqlConnection conn1=new SqlConnection(strConn1);
				SqlCommand cmd1=new SqlCommand();
				SqlDataReader reader1;
				cmd1.Connection=conn1;
				cmd1.CommandText=sql1;
				conn1.Open();
				reader1=cmd1.ExecuteReader();
				DropDownList2.DataSource=reader;
				DropDownList2.DataTextField="time";
				reader1.Close();
                conn1.Close();
                //bang ding datagrid
				string sql2="SELECT dbo.szb.szbname AS 指标名称, dbo.company.comname AS 电厂名称, dbo.szbsj.sjz AS 设计值, dbo.szbsj.zhsp AS 最好水平, dbo.szbsj.yjh AS 月计划,";
				sql2+=" dbo.szbsj.ysj AS 月实际, dbo.szbsj.njh AS 年计划, dbo.szbsj.nlj AS 年累计, dbo.szbsj.time AS 申报时间";
				sql2+=" FROM dbo.company INNER JOIN";
				sql2+="  dbo.szbsj ON dbo.company.comid = dbo.szbsj.comid INNER JOIN";
				sql2+=" dbo.szb ON dbo.szbsj.szbid = dbo.szb.szbid";
				
			    
				string strConn2="Server=(local);User ID=sa;Database=bjj;PassWord=temo456";
				SqlConnection conn2=new SqlConnection(strConn2);
				SqlCommand cmd2=new SqlCommand();
				SqlDataReader reader2;
				cmd2.Connection=conn2;
				cmd2.CommandText=sql2;
				conn2.Open();
				reader2=cmd2.ExecuteReader();
				DataGrid1.DataSource=reader2;
				DataGrid1.DataBind();
				
				
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.DropDownList1.SelectedIndexChanged += new System.EventHandler(this.DropDownList1_SelectedIndexChanged);
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button3.Click += new System.EventHandler(this.Button3_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			string sql="SELECT dbo.szb.szbname AS 指标名称, dbo.company.comname AS 电厂名称, dbo.szbsj.sjz AS 设计值, dbo.szbsj.zhsp AS 最好水平, dbo.szbsj.yjh AS 月计划,";
                 sql+=" dbo.szbsj.ysj AS 月实际, dbo.szbsj.njh AS 年计划, dbo.szbsj.nlj AS 年累计, dbo.szbsj.time AS 申报时间";
			sql+=" FROM dbo.company INNER JOIN";
			sql+="  dbo.szbsj ON dbo.company.comid = dbo.szbsj.comid INNER JOIN";
			sql+=" dbo.szb ON dbo.szbsj.szbid = dbo.szb.szbid";
			    sql+= " where comname='" + DropDownList1.SelectedItem.Text +"'and time='"+ DropDownList2.SelectedItem.Text+"'";
			    
			string strConn="Server=(local);User ID=sa;Database=bjj;PassWord=temo456";
			SqlConnection conn=new SqlConnection(strConn);
			SqlCommand cmd=new SqlCommand();
			SqlDataReader reader;
			cmd.Connection=conn;
			cmd.CommandText=sql;
			conn.Open();
			reader=cmd.ExecuteReader();
			DataGrid1.DataSource=reader;
			DataGrid1.DataBind();
		}

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

		private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
		
		}
	}
}