I Write Code For Download All as zip.
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string filepath = Server.MapPath("download/flag.png");
zip.AddFile(filepath, folder);
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=DownloadedFile.zip");
Response.ContentType = "application/zip";
zip.Save(Response.OutputStream);
Response.End();
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its Completely Working
But When i give DropBox Public path as filepath
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string filepath = "https://dl.dropboxusercontent.com/u/155062858/flag.png";
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its Occur Error The given path's format is not supported.
Thanks in Advance.