public DataSet createCache() { //返回DataSet DataSet ds=new DataSet(); OleDbConnection conn=new OleDbConnection("provider=microsoft.jet.oledb.4.0;data source="+Server.MapPath("data.mdb")); conn.Open(); string sql="select * from data1 order by createtime asc"; OleDbDataAdapter cmd=new OleDbDataAdapter(sql,conn); cmd.Fill(ds); cmd.Dispose(); conn.Dispose(); return ds; } private void Button1_Click(object sender, System.EventArgs e) { //清除Cache Cache.Remove("DataList"); Response.Write("缓存清除成功"); } private void Button2_Click(object sender, System.EventArgs e) { //建立Cache if(Cache["DataList"]==null) { //缓存不存在建立缓存 Cache.Insert("DataList",(DataSet)createCache()); DataSet ds=(DataSet)Cache["DataList"]; DataGrid1.DataSource=ds; DataGrid1.DataBind(); } else { //缓存存在执行绑定 DataSet ds=(DataSet)Cache["DataList"]; DataGrid1.DataSource=ds; DataGrid1.DataBind(); } }