To save dynamically generated pdf to web server automatically without prompting user

Tina_Bhole
Tina_Bhole used Ask the Experts™
on
Hi Experts,

I am generating rdlc report in asp.net (visual studio 2010). Currently, using the following code, I am able to export the report to pdf format on a button click event. Response.Flush()  in the end is prompting user to download it at the desired location.

What I want is,
1) Instead of generating a pdf on a button click, I want to export my report automatically  to pdf after the report gets generated on a page load event
2) That pdf report should get saved automatically at the specified location on the web server instead of prompting user to download it on their PC.

Is this achievable?



 protected void CreatePDF()
        {
           
            // Variables
            Warning[] warnings;
            string[] streamIds;
            string mimeType = string.Empty;
            string encoding = string.Empty;
            string extension = string.Empty;
            string fileName="Quote"+hdnRegistrationNo.Value+".pdf";
            string savelocation = Server.MapPath("Registrations")+ "\\" + fileName;
           
            // Setup the report viewer object and get the array of bytes
         
            byte[] bytes = ReportViewer1.LocalReport.Render("PDF", null, out mimeType, out     encoding, out extension, out streamIds, out warnings);

            Response.Buffer = true;
            Response.Clear();
            Response.ContentType = mimeType;
            Response.AddHeader("content-disposition", "attachment; filename=" + fileName);
            Response.Flush();
           
        }
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Full stack Software Engineer
Commented:
after calling LocalReport.Render, use the following code to save it on the server:

-> fileName: the pdf file path on the server

using (FileStream stream = File.OpenWrite(fileName))
  {
    stream.Write(bytes , 0, bytes.Length);
  }

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Author

Commented:
Thanks for your reply sedgwick. Is there any way to eliminate clicking of the button to call CreatePDF() function. Can it be called automatically after the report loads?
I managed to achieve what I wanted by calling CreatePDF() in Form_Load event as follows:


 if (IsPostBack)
            {
                CreatePDF();
            }


After the report loads it calls postback event and then the pdf gets generated automatically.

Author

Commented:
Sedwick answered one out of 2 questions I asked. I found answer to the second question on my own.

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