sel_sbbh.aspx.cs

该系统采用asp+sql的实验室管理系统

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 Data_Contrl;
using Datamodel;

namespace Sbgl.Admin
{
	/// <summary>
	/// Sel_Sbbh 的摘要说明。
	/// </summary>
	public partial class Sel_Sbbh : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if (!IsPostBack)
			{
				string[] strsql;
				strsql = new string[2];
				strsql[0] = "Select id as bm,bmnr as nr From h_sbzl";
				strsql[1] = "Select id as bm,bmnr as nr from h_sblb";
				DropDownList[] ddl;
				ddl = new DropDownList[2];
				ddl[0] = DDL_Sbzl;
				ddl[1] = DDL_Sblb;
				for(int i= 0;i<=1;i++) 
				{
					DDL_BindData(strsql[i],ddl[i]);
				}
			}
		}

		private void DDL_BindData(string strSQL,DropDownList DDL)
		{
			//DDL的函数过程！
			CreateDb mydb = new CreateDb();
			DBManager my = mydb.Createdb();
			my.OpenConn();
			DDL.DataSource =my.ExeCommand(strSQL).ExecuteReader();
			DDL.DataTextField = "nr";
			DDL.DataValueField = "bm";
			DDL.DataBind();
			DDL.Items.Insert(0,new ListItem("全部", ""));
			my.CloseConn();
		}

		#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()
		{

		}
		#endregion

		protected void DDL_Sbzl_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			string sbzl_my = DDL_Sbzl.SelectedValue;
			if(sbzl_my!="")
			{
				string strsql = "Select id as bm,bmnr as nr from h_sblb where zlid="+Convert.ToInt32(sbzl_my)+"";
				DDL_BindData(strsql,DDL_Sblb);
			}
			else
			{
				string strsql = "Select id as bm,bmnr as nr from h_sblb";
				DDL_BindData(strsql,DDL_Sblb);
			}
		}

		protected void DDL_Sblb_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			Sbgl_Tmp my = new Sbgl_Tmp();
			showList.DataSource=my.Get_Sb_bh(Convert.ToInt32(DDL_Sblb.SelectedValue));
			showList.DataBind();
		}
	}
}