/// <summary> /// 将上传文件进行压缩 /// by xlb 2012-12-17 /// </summary> /// <param name="filename"></param> /// <returns></returns> private string ToStream(string filename) { try { if (!File.Exists(filename)) { return(null); } FileStream fStream = new FileStream(filename, FileMode.Open, FileAccess.Read); BinaryReader bReader = new BinaryReader(fStream); byte[] byteFile = bReader.ReadBytes((int)fStream.Length); string btyeToStr = Convert.ToBase64String(byteFile); return(DS_Common.ZipEmrXml(btyeToStr)); } catch (Exception ex) { throw ex; } }