将PDF流保存到文件夹中

Question

I am creating a Stream, I am able to download it as a PDF file & also able to return it as a Filestream into PDF format.

But I want to save this stream into a folder into PDF file format.

I am using some code to create stream as::

public void PrintInvoice(long ID)
        {

            ReportDocument rd = new ReportDocument();
            rd.Load(AppDomain.CurrentDomain.BaseDirectory+(@"\Reports\InvoiceDocument.rpt"));
            Stream stream = rd.ExportToStream(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat);
            stream.Seek(0, SeekOrigin.Begin);
            return File(stream, "application/pdf", "TestCrystal.pdf");     
        }

How can I save the formed stream into Folder into PDF file format? I want to save the PDF file on Client Machine.

Answer 1

To save file on Server -

using (MemoryStream ms = new MemoryStream())
{
     stream.CopyTo(ms);
     System.IO.File.WriteAllBytes(Server.MapPath("~/Report1.pdf"), ms.ToArray());
}

To save file on Client -

Option1 - Using ActiveX, you Save file on Client machine without user interaction

Option2 - Using Silverlight, you can put the file in IsolatedStorage available on client machine

Unfortunately you cannot save file with JQuery/JavaScript, due to security issues. And there are many other options like Java Applets etc.

I do not understand the reason why do you want to save file on client machine from server side. Let user take that responsibility, I mean let user click a link and get the file from server and save it in the location of his interest. Don't you think it is security issue if server tries to save/access files on client machines. So I would suggest you to re-think your implementation and come up with different workflow.