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The dictionary already has a stream.
http://forum.pdfsharp.de/viewtopic.php?f=2&t=352		 Page 1 of 1
Author:  cp4072 [ Mon Mar 31, 2008 1:31 pm ]
Post subject:  The dictionary already has a stream.
Hi all,

Ive been writing a vb.net plugin that processes two xml files and outputs two pdfs along with two updated xmls. Everything works well until I save the second generated pdf to a memorystream in order to convert it to base64 to insert into the second updated xml.

The error raised is: "The dictionary already has a stream."

BTW: The first pdf is pdfSharp only, the second is a MigraDoc document.

Has anyone seen this error before? Any ideas on a way around?

TIA.
Author:  Adrian [ Thu Oct 22, 2009 8:37 am ]
Post subject:  Re: The dictionary already has a stream.
I am getting the same error - Anyone have any idea how to resolve this
Author:  Adrian [ Thu Oct 22, 2009 8:45 am ]
Post subject:  Re: The dictionary already has a stream.
Resolved this - Caused by not creating a new occurrence of the class for each document
Author:  Mattpil29 [ Mon Jan 31, 2011 4:45 pm ]
Post subject:  Re: The dictionary already has a stream.
Adria,

I know this was a long time ago but do you remember what class you need to create a new isntance of?

I'd like to create a Migradoc, add pages and then do two steps:
1) save it to a memory stream (for embedding in to another file)
2) save it to a file.

I get the dictionary error if I use the same pdf object for both. I'd like to do this to save cpu cycles in creating two identical documents!

Matt
Author:  Thomas Hoevel [ Mon Jan 31, 2011 5:28 pm ]
Post subject:  Re: The dictionary already has a stream.
Performance will be better if step 2 uses the memory stream created in step 1 to create the file.

See also here:
viewtopic.php?p=4107#p4107
Author:  Mattpil29 [ Tue Feb 01, 2011 10:03 am ]
Post subject:  Re: The dictionary already has a stream.
Thanks Thomas.

I probably over simplified my problem. In between step 1 and 2 I want to add a watermark to the report. In the end I figured I could save v1 to a memory stream. Use pdfReader to re-load the doc from the same memory stream, then add the watermark and do the save v2 (to a file).

BTW for anyone looking the vb.net code to save the memory stream to a file is:
Code:
'tempstr1 is the result of saving the pdf to a memory stream
            Dim writeStream As FileStream
            Try
                writeStream = New FileStream("c:\testBinary.pdf", FileMode.Create)
                Dim writeBinay As New BinaryWriter(writeStream)
                tempstr1.Position = 0
                writeBinay.Write(tempstr1.ToArray())
                writeBinay.Close()
            Catch ex As Exception
                MsgBox(ex.ToString)
            End Try


Matt
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