ADO：DataSet存入缓存Cache中并使用

原文发布时间为：2008-08-01 —— 来源于本人的百度文章 [由搬家工具导入]

using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;

using System.Data.SqlClient;

public partial class Cacheds : System.Web.UI.Page{        protected void Page_Load(object sender, EventArgs e)    {        DataSet ds=(DataSet)Cache.Get("ds_cache");        if (!IsPostBack)        {            if (ds == null)            {                SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["pubsConn"].ConnectionString);                SqlDataAdapter sda = new SqlDataAdapter();                sda.SelectCommand = new SqlCommand("select title_id,title,type from titles", conn);                DataSet cds = new DataSet();                sda.Fill(cds, "t1");

                cds.ExtendedProperties.Add("ds_t1", DateTime.Now.ToLongTimeString());                Cache.Insert("ds_cache", cds, null, DateTime.Now.AddMinutes(2), TimeSpan.Zero);

                Response.Write("对象已经从数据库填充并存入Cache");                GridView1.DataSource = cds.Tables["t1"];                GridView1.DataBind();            }

            else            {                Response.Write("对象还在缓存Cache中，直接调用");                GridView1.DataSource = ds.Tables["t1"];                GridView1.DataBind();            }        }    }    protected void Button1_Click(object sender, EventArgs e)    {        Cache.Remove("ds_cache");    }}