ASP.net C# Multiple Documents on One Response Obje

问题:

I have this code

private void writeReport(IReport report, string reportName)
{
    string reportString = report.makeReport();
    ASCIIEncoding encoding = new ASCIIEncoding();
    byte[] encodedReport = encoding.GetBytes(reportString);
    Response.ContentType = "text/plain";
    Response.AddHeader("Content-Disposition", "attachment;filename="+ reportName +".txt");
    Response.OutputStream.Write(encodedReport, 0, encodedReport.Length);
    Response.End();
}

but I have 3 documents that I need to send to the client. I'd rather not have to make the user click 3 buttons to get them the 3 txt files. Is there a way to send all 3 on one reponse?

回答1:

Nope, multipart attachments for download (like as in email) aren't supported for security reasons. It's called a "drive-by download."

Note that Gmail handles this by dynamically zipping up the files. You should too. http://forums.asp.net/t/1240811.aspx

回答2:

This can be done according to the article "Download multiple files in one http request" on motobit.com.

However it's not how HTTP was designed and following those steps may break at any time depending on client and server configuration.