Combine two byte arrays from rdlc to create a pdf

Question

User-1600699211 posted

I have two byte arrays from rdlc reports.

I need to create a pdf combining both the byte arrays.

My code is

Warning[] warnings;
                string[] streamIds;
                string mimeType = string.Empty;
                string encoding = string.Empty;
                string extension = string.Empty;

                bytes = rptViewer.LocalReport.Render("PDF", null, out mimeType, out encoding, out extension, out streamIds, out warnings);

                bytes1 = RunReport(21316228, "82", 7);

                byte[] combined = new byte[bytes.Length + bytes1.Length];
                bytes.CopyTo(combined, 0); 
                Array.Copy(bytes1, 0, combined, bytes.Length, bytes1.Length);

                FileStream stream = new FileStream(savePath, FileMode.Create, FileAccess.ReadWrite);
                using (stream)
                {
                    stream.Write(combined, 0, combined.Length);
                }

 

The RunReport function returns bytes1 which is generated from another rdlc report. I can see the size of combined byte is fine but its just printing the 2nd byte but not appending 1 and 2.

I tried various other codes using Buffer.BlockCopy etc.. similar to this but all of them yield the same result.

Some one please help me out!

Answer 1

User313501468 posted

Were you able to resolve this?  I am trying to combine two reports in the same manner, but I get the same results as you: only the second byte() is rendered. 

Answer 2

User-37275327 posted

Create 2 pdfs. use itextsharp to merge the report.

Answer 3

User-1355692323 posted

I have tried the same thing with itextsharp.

Dim pdfReader1 As New PdfReader(renderedBytes)
Dim pdfReader2 As New PdfReader(renderedBytes2)

Using finaloutput As MemoryStream = New MemoryStream()
Dim copy As PdfCopyFields = New PdfCopyFields(finaloutput)
copy.AddDocument(pdfReader1)
copy.AddDocument(pdfReader2)
copy.SetFullCompression()
copy.Close()
Return File(finaloutput.ToArray(), "PDF", "test.pdf")
End Using