searched.aspx.cs

1。使用ASP.NET+C# VS.NET 2003制作

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
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 doughty_BBS.inputcon;

namespace doughty_BBS
{
	/// <summary>
	/// searched 的摘要说明。
	/// </summary>
	public class searched : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Lblsearch;
		protected System.Web.UI.WebControls.DataList DataList1;
	
		public void BindGrid() 
		{
			SqlConnection sqlConnection=new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["DBConnection"]);

			string sql1;
			if (Request.QueryString["author"]=="")
			{
				if (Request.QueryString["BID"]==null) 
				{
					sql1="SELECT Q_ID,solved, author, Q_Note, Q_Content, ImageName, HiteCounter, AnsCounter,ReleaseTime, ReferTime, BigClass_ID, SmallClass_ID FROM Questions"+
						" WHERE (ReferTime >@ReferTime) AND (Q_Note LIKE @Q_Note)and(Kind >= 0)";
				}
				else
				{
					sql1="SELECT Q_ID,solved, author, Q_Note, Q_Content, ImageName, HiteCounter, AnsCounter,ReleaseTime, ReferTime, BigClass_ID, SmallClass_ID FROM Questions"+
						" WHERE (BigClass_ID =@BigClassID) AND (SmallClass_ID =@SmallClassID) AND (ReferTime >@ReferTime) AND (Q_Note LIKE @Q_Note)and(Kind >= 0)";
				}
			}
			else
			{
				if (Request.QueryString["BID"]==null) 
				{
					sql1="SELECT Q_ID,solved,author, Q_Note, Q_Content, ImageName, HiteCounter, AnsCounter,ReleaseTime, ReferTime, BigClass_ID, SmallClass_ID FROM Questions"+
						" WHERE (ReferTime > @ReferTime) AND (Q_Note LIKE @Q_Note) AND (author ='"+Request.QueryString["author"]+"')and(Kind >= 0)";
				}
				else
				{
					sql1="SELECT Q_ID,solved, author, Q_Note, Q_Content, ImageName, HiteCounter, AnsCounter,ReleaseTime, ReferTime, BigClass_ID, SmallClass_ID FROM Questions"+
						" WHERE (BigClass_ID =@BigClassID) AND (SmallClass_ID =@SmallClassID) AND (ReferTime > @ReferTime) AND (Q_Note LIKE @Q_Note) AND (author =@author)and(Kind >= 0)";
				}
			}
			string con;
			if (Request.QueryString["Q_Note"]=="%")
				con="%";
			else
				con="%"+Request.QueryString["Q_Note"]+"%";
			//con="%"+ConvertString.InputText(Request.QueryString["Q_Note"])+"%";
			SqlDataAdapter sqlAdapter1 = new SqlDataAdapter(sql1, sqlConnection);
			if (Request.QueryString["BID"]!=null) 
			{
				sqlAdapter1.SelectCommand.Parameters.Add("@BigClassID",SqlDbType.Int,4,"BigClass_ID");
				sqlAdapter1.SelectCommand.Parameters.Add("@SmallClassID",SqlDbType.Int,4,"SmallClass_ID");
			}
			sqlAdapter1.SelectCommand.Parameters.Add("@Q_Note",SqlDbType.VarChar,160,"Q_Note");
			sqlAdapter1.SelectCommand.Parameters.Add("@ReferTime",SqlDbType.DateTime,12,"ReferTime");
			if (Request.QueryString["BID"]!=null) 
			{
				sqlAdapter1.SelectCommand.Parameters["@BigClassID"].Value=Request.QueryString["BID"];
				sqlAdapter1.SelectCommand.Parameters["@SmallClassID"].Value=Request.QueryString["SID"];
			}
			sqlAdapter1.SelectCommand.Parameters["@Q_Note"].Value=con;
			sqlAdapter1.SelectCommand.Parameters["@ReferTime"].Value=Request.QueryString["ReferTime"];
			DataSet returns = new DataSet();
			sqlAdapter1.Fill(returns);
			this.DataList1.DataSource=returns.Tables[0];
			this.Page.DataBind();		
		}

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if (Request.QueryString["Q_Note"]==null)
				Lblsearch.Text="没有输入关键字";
			else
			{
				Lblsearch.Text="关键字："+Request.QueryString["Q_Note"].ToString();
				BindGrid();
			}
		}

		#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.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			//分页显示
			//this.DataGrid1.CurrentPageIndex = e.NewPageIndex;
			//this.Page.DataBind();
		}

	}
}