ASPNET文件下載函數使用是什麼情況呢？在你的Page_Load中添加這樣的代碼:
PageResponseClear(); bool success = ResponseFile(PageRequest PageResponse 目的文件名稱 @源文件路徑 ); if (!success) ResponseWrite(下載文件出錯！); PageResponseEnd();
ASPNET文件下載函數代碼為:
public static bool ResponseFile(HttpRequest _RequestHttpResponse _Responsestring _fileNamestring _fullPath long _speed) { try { FileStream myFile = new FileStream(_fullPath FileModeOpen FileAccessRead FileShareReadWrite); BinaryReader br = new BinaryReader(myFile); try { _ResponseAddHeader(AcceptRanges bytes); _ResponseBuffer = false; long fileLength = myFileLength; long startBytes = ; double pack = ; //K bytes //int sleep = ; //每秒次 即*K bytes每秒 int sleep = (int)MathFloor( * pack / _speed) + ; if (_RequestHeaders[Range] != null) { _ResponseStatusCode = ; string[] range = _RequestHeaders[Range]Split(new char[] {= }); startBytes = ConvertToInt(range[]); } _ResponseAddHeader(ContentLength (fileLength startBytes)ToString()); if (startBytes != ) { //ResponseAddHeader(ContentRange stringFormat( bytes {}{}/{} startBytes fileLength fileLength)); } _ResponseAddHeader(Connection KeepAlive); _ResponseContentType = application/octetstream; _ResponseAddHeader(ContentDispositionattachment;filename= + HttpUtilityUrlEncode(_fileNameSystemTextEncodingUTF) ); brBaseStreamSeek(startBytes SeekOriginBegin); int maxCount = (int) MathFloor((fileLength startBytes) / pack) + ; for (int i = ; i < maxCount; i++) { if (_ResponseIsClientConnected) { _ResponseBinaryWrite(brReadBytes(intParse(packToString()))); ThreadSleep(sleep); } else { i=maxCount; } } } catch { return false; } finally { brClose(); myFileClose(); } } catch { return false; } return true; }
這樣就實現了文件下載時不管是什麼格式的文件都能夠彈出打開/保存窗口
ASPNET文件下載函數的基本情況就向你介紹到這裡希望對你了解ASPNET文件下載函數有所幫助
From:http://tw.wingwit.com/Article/program/ASP/201311/21650.html
