using?System;
using?System.Data;
using?System.Configuration;
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.Diagnostics;
using?AjaxPro;
using?System.Threading;
using?System.IO;
using?DownLoadComponent;


///?

///?Author:?[?ChengKing（ZhengJian）?]?
///?Blog:???Http://blog.csdn.net/ChengKing
//該源碼下載自www.51aspx.com（５１ａｓｐｘ．ｃｏｍ）
///?擴展如下功能:?
///???1.?解決一些線程相關的Bug;?
///???2.擴展用控制文件實現斷點續傳功能.
///?

public?partial?class?_Default?:?System.Web.UI.Page?
{????
????//全局變量
????private?static?object?_SyncLockobject?=?new?object（）;

????protected?void?Page_Load（object?sender?EventArgs?e）
????{
????????Utility.RegisterTypeForAjax（typeof（_Default））;
????????this.TextBox1.Text?=?“http://download.csdn.net/filedown/aHR0cDovL2Rvd25sb2FkMS5jc2RuLm5ldC9kb3duMy8yMDA3MDQxOS8xOTE1NTU0NzgwMS5yYXI=!169105“;
????????
???????????}
????protected?void?btOK_Click（object?sender?EventArgs?e）
????{
????????this.Label1.Text?=?“狀態:?正在下載...“;
????????
????????DownLoadComponent.HttpWebClient?x?=?new?DownLoadComponent.HttpWebClient（）;

????????//注冊?DataReceive　事件
????????x.DataReceive?+=?new?DownLoadComponent.HttpWebClient.DataReceiveEventHandler（this.x_DataReceive）;
????????//注冊?ExceptionOccurrs　事件
????????x.ExceptionOccurrs?+=?new?DownLoadComponent.HttpWebClient.ExceptionEventHandler（this.x_ExceptionOccurrs）;

????????string?Source?=?this.TextBox1.Text.Trim（）;
????????string?FileName?=?Source.Substring（Source.LastIndexOf（“/“）?+?1）;
????????string?Location=?System.IO.Path.Combine（?this.TextBox2.Text.Trim（）??FileName）;
????????
????????//F:?源服務器文件;??_f:?保存路徑;??10:?自設定一個文件有幾個線程下載.
????????x.DownloadFile（SourceLocation??int.Parse（this.TextBox3.Text））;

????????//Response.Write（“正在下載文件...“）;
????????this.btOK.Enabled?=?false;
????????this.btCancel.Enabled?=?true;
????}

????private?void?x_DataReceive（DownLoadComponent.HttpWebClient?Sender?DownLoadComponent.DownLoadEventArgs?e）
????{

????????string?f?=?e.DownloadState.FileName;
????????if?（e.DownloadState.AttachmentName?!=?null）
????????????f?=?System.IO.Path.GetDirectoryName（f）?+?@“\“?+?e.DownloadState.AttachmentName;???????
????????
????????using?（System.IO.FileStream?sw?=?new?System.IO.FileStream（f?System.IO.FileMode.OpenOrCreate?System.IO.FileAccess.ReadWrite?System.IO.FileShare.ReadWrite））
????????{
????????????sw.Position?=?e.DownloadState.Position;????????????????
????????????sw.Write（e.DownloadState.Data?0?e.DownloadState.Data.Length）;?
????????????sw.Close（）;
????????}????????????
????}???

????private?void?x_ExceptionOccurrs（DownLoadComponent.HttpWebClient?Sender?DownLoadComponent.ExceptionEventArgs?e）
????{
????????System.Console.WriteLine（e.Exception.Message）;
????????//發生異常重新下載相當于斷點續傳你可以自己自行選擇處理方式或自行處理
????????DownLoadComponent.HttpWebClient?x?=?new?DownLoadComponent.HttpWebClient（）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1809??2007-06-22?14:11??51aspx源碼必讀.txt

?????文件???????3766??2007-06-22?14:14??Default.aspx

?????文件???????6284??2007-06-22?14:14??Default.aspx.cs

?????文件???????1748??2007-05-30?19:45??Web.config

?????文件????????125??2007-03-27?14:33??最新Asp.Net源碼下載.url

?????文件??????38119??2007-06-22?14:15??App_Code\DownLoadState.cs

?????目錄??????????0??2007-06-22?11:46??App_Code

?????文件??????81920??2005-11-04?11:59??Bin\AjaxPro.dll

?????文件????????246??2007-05-30?18:56??Bin\AjaxPro.dll.refresh

?????目錄??????????0??2007-06-22?11:46??Bin

-----------?---------??----------?-----??----

???????????????134017????????????????????10