studentsimplesearch.aspx.cs

学生公寓管理系统使用说明： 1.服务器运行环境 SQL 2000 .NET FRAMEWORK 1.1 .NET FRAMEWORK 1.1 CHINESE (SIMPL

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;

namespace Manage
{
	/// <summary>
	/// StudentSimpleSearch 的摘要说明。
	/// </summary>
	public class StudentSimpleSearch : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Button Search;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Data.SqlClient.SqlConnection conn;
		protected System.Data.SqlClient.SqlCommand cmd;
		protected System.Data.SqlClient.SqlDataReader reader;
		protected string myConn;
		protected string cmdText;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 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.Search.Click += new System.EventHandler(this.Search_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Search_Click(object sender, System.EventArgs e)
		{
			string s;
			s=this.DropDownList1.SelectedValue.ToString()+"="+"'"+this.TextBox1.Text+"'";
			this.myConn=ConfigurationSettings.AppSettings["mySql"];
			this.conn=new System.Data.SqlClient.SqlConnection(myConn);
			try
			{
				if(this.TextBox1.Text!="")
				{
					cmdText="select * from Student where ";
					cmdText=cmdText+s;
					conn.Open();
					cmd=new System.Data.SqlClient.SqlCommand(cmdText,conn);
					reader=cmd.ExecuteReader();

					this.DataGrid1.DataSource=reader;
					this.DataGrid1.DataBind();
					reader.Close();
					conn.Close();
					
				}
				else Response.Write("<script>alert('请输入查询条件！')</script>");

			}
		
			catch(Exception ex)
			{	
				
				Response.Write("<script>alert('"+ex.Message+"查询条件格式错误！')</script>");
		
			}
		}
	
	}
}