query.aspx.cs

这是一个学生服务管理系统

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;

namespace sheng
{
	/// <summary>
	/// query 的摘要说明。
	/// </summary>
	public class query : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.TextBox txtComName;
		protected System.Web.UI.WebControls.TextBox txtComURL;
		protected System.Web.UI.WebControls.TextBox txtKeyWord;
		protected System.Web.UI.WebControls.Button btnAffirm;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.DropDownList DropDownState;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.TextBox txtMemberName;
	
		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.btnAffirm.Click += new System.EventHandler(this.btnAffirm_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnAffirm_Click(object sender, System.EventArgs e)
		{
			string sqlStr = "select * from url where ";
			if ( txtComName.Text.Trim().Length!=0)
				sqlStr += "公司名 like '%" + txtComName.Text.Trim() + "%' and ";
			if ( txtComURL.Text.Trim().Length!=0)
				sqlStr += "公司网址 like '%" + txtComURL.Text.Trim() + "%' and ";
			if (txtKeyWord.Text.Trim().Length !=0)
				sqlStr += "关键字 like '%" + txtKeyWord.Text.Trim() +"%' and ";
			if (DropDownState.Items[0].Selected)
				sqlStr += "跟踪人 is not null and ";
			else 
				sqlStr += "跟踪人 is null and ";
			if(sqlStr.EndsWith("and "))
				sqlStr = sqlStr.Substring(0,sqlStr.Length -  4);
			sqlStr += "  order  by 跟踪开始日期 desc ";
			Response.Redirect("memberList.aspx?strSql=" + sqlStr + "&startPage=1");
		}
	}
}