gosearch.aspx.cs

ASP。NET免费毕业论文设计：ASP[1].NET网络书店(C_,全源码提供) 采用C#语言编写

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 bbs
{
	/// <summary>
	/// Summary description for GoSearch.
	/// </summary>
	public class GoSearch : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label lblInfo;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{			
				ViewState["Sort"] = "";
				Bind();
			}
		}

		#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.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.DataGrid1.SortCommand += new System.Web.UI.WebControls.DataGridSortCommandEventHandler(this.Datagrid1_SortCommand);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			DataGrid1.CurrentPageIndex = e.NewPageIndex;
			Bind();
		}

		private void Bind()
		{
			DataSet ds = Hugo.Book.Search(Request["Condition"]);
			ds.Tables[0].DefaultView.Sort = ViewState["Sort"].ToString();
			lblInfo.Text = "Total results:" + ds.Tables[0].Rows.Count.ToString();
			this.DataGrid1.DataSource = ds.Tables[0].DefaultView;
			this.DataGrid1.DataBind();
		}


		private void Datagrid1_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
		{
			if(ViewState["Sort"].ToString() == e.SortExpression)
			{
				ViewState["Sort"] += " desc";
			}
			else
			{
				ViewState["Sort"] = e.SortExpression;
			}
			Bind();
		}
	}
}