articlelist.aspx.cs

来自「asp做的新闻系统」· CS 代码 · 共 102 行

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
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 Web
{
	/// <summary>
	/// ArticleList 的摘要说明。
	/// </summary>
	public class ArticleList : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid GrdArticle;
	
		private DataSet OleDs;
		private Web.DataAccess.DataAccess Das = new DataAccess.DataAccess();

		const int nGrdRows = 10;

		private void Page_Load(object sender, System.EventArgs e)
		{		
			BindGrdArticle();
		}

		#region Web Form Designer generated code
		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.GrdArticle.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.GrdArticle_PageIndexChanged);
			this.GrdArticle.SortCommand += new System.Web.UI.WebControls.DataGridSortCommandEventHandler(this.GrdArticle_SortCommand);
			this.GrdArticle.SelectedIndexChanged += new System.EventHandler(this.GrdArticle_SelectedIndexChanged);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		//刷新GrdArticle
		private void BindGrdArticle()
		{
			OleDs = new DataSet();

			OleDs=Das.GetDataSet("select * from article order by ID desc");
			GrdArticle.DataSource=OleDs;
			
			int nPage=0;
			nPage = GrdArticle.CurrentPageIndex;
			GrdArticle.CurrentPageIndex =0;
			GrdArticle.DataBind();

			if ((nPage >= GrdArticle.PageCount) && (GrdArticle.PageCount > 0))
			{
				nPage = GrdArticle.PageCount - 1;
			}
			
			GrdArticle.CurrentPageIndex = nPage;
			GrdArticle.DataBind();
		}

		private void GrdArticle_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
		{
			DataView dv = new DataView();
			BindGrdArticle();
			dv.Table = OleDs.Tables[0];
			dv.Sort = e.SortExpression;
			GrdArticle.DataSource = dv;
			GrdArticle.DataBind();
			GrdArticle.EditItemIndex = -1;
			GrdArticle.SelectedIndex = 0;
		}

		private void GrdArticle_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			GrdArticle.CurrentPageIndex = e.NewPageIndex;
			BindGrdArticle();
		}

		private void GrdArticle_SelectedIndexChanged(object sender, System.EventArgs e)
		{
		
		}
	}
}