使用C＃在asp.net中下載文件

Question

我如何在asp.net中下載文件？ 這是我上載文件的操作：我將文件上載到網站，並將URL保存到這樣的數據庫中：

string CVPath = null;
  if (uploadfiles.HasFile)
  {
    string file = uploadfiles.FileName;
    uploadfiles.PostedFile.SaveAs(Server.MapPath(".") + "//CV//" + file);
    CVPath = "~//ProfileImages//" + file;
    FileName.InnerText = file;
  }
  else
    CVPath = "";

然后將“ CVPath”保存在數據庫中

Answer 1

要下載文件，首先需要將所有內容讀取為字符串。

    MemoryStream ms = new MemoryStream();
    TextWriter tw = new StreamWriter(ms);
    tw.WriteLine("YourString");
    tw.Flush();
    byte[] bytes = ms.ToArray();
    ms.Close();
    Response.Clear();
    Response.ContentType = "application/force-download";
    Response.AddHeader("content-disposition", "attachment; filename=file.txt");
    Response.BinaryWrite(bytes);
    Response.End();