?
Solved

Creating a new document in vb.net using DM 5.1.05 API results in zero length file

Posted on 2007-11-14
3
Medium Priority
?
1,154 Views
Last Modified: 2010-08-05
Using the example from the API reference and modifying it for vb.net from vb6, i am creating a new document in DM.  The result is that no error is thrown, the document does get created but the version of the document in DM is 0 length.  Trapping the "TotalBytesWritten" return value also reveals that no bytes were written.  The errDescription and errNumber both are OK.

Here is my VB.Net code

        Dim DocNumber As Long
        Dim VersionID As Long
        Dim TotalFileSize As Long
        Dim TotalBytesWritten As Long
        Dim szErr As String
        Dim bdata() As Byte
        Dim objDoc As New PCDCLIENTLib.PCDDocObject
        objDoc.SetProperty("%TARGET_LIBRARY", gszLibrary)
        objDoc.SetDST(gszDst)
        'Set the Profile Form for this document.
**code that sets the profile field values purposely omitted from ee post ***    

    Dim objPutStream As New Object
        objPutStream = objPutDoc.GetPropertyValue("%CONTENT")
        Dim FileName
        FileName = "C:\Test\005.doc"
        Dim fs As FileStream = File.Open(FileName, FileMode.Open, FileAccess.Read)
        Dim r As BinaryReader = New BinaryReader(fs)
        Dim bytesToWrite As Integer

        'FileOpen(1, FileName, OpenMode.Binary, OpenAccess.Read, OpenShare.LockRead, bdata.Length)
         TotalFileSize = fs.Length
        TotalBytesWritten = 0
        Me.lblImportProgress.Text = "Uploading Image: " & FileName
        bdata = r.ReadBytes(TotalFileSize)
        objPutStream.Write(bdata, TotalBytesWritten)
 
          fs.Close()
        objPutStream = Nothing
        objDoc = Nothing
        objDoc = New PCDCLIENTLib.PCDDocObject
        objDoc.SetDST(gszDst)
        objDoc.SetObjectType(gclsTemplate.DMProfile.ToString)
        objDoc.Update()


The code example from the api reference used the OPEN and GET methods.
Here is the crux of the writing portion from the example:

Dim DocNumber As Long
Dim VersionID As Long
Dim TotalFileSize As Long
Dim TotalBytesWritten As Long
Dim Buffread As Long
'Set bdata ridiculously low for test purposes
'to increase the likelihood of corruption.
Dim bdata(16) As Byte
Dim objDoc As PCDDocObject
Set objDoc = New PCDDocObject
objDoc.SetProperty "%TARGET_LIBRARY", Library
objDoc.SetDST DST
'Set the Profile Form for this document.
***PROFILE FIELD VALUES OMITTED FOR EE POST***
Dim objPutDoc As PCDPutDoc
Set objPutDoc = CreateObject( _
"PCDClient.PCDPutDoc")
objPutDoc.SetDST DST

objPutDoc.NextRow
Dim objPutStream As Object
Set objPutStream = _
objPutDoc.GetPropertyValue("%CONTENT")
Dim FileName
FileName = txtFileName.Text

Open FileName For Binary Access Read As #1
TotalFileSize = LOF(1)
While (Not EOF(1))
TotalBytesWritten = TotalFileSize
If TotalBytesWritten > 0 Then

If (TotalBytesWritten > UBound(bdata)) Then

TotalBytesWritten = UBound(bdata) + 1

Else

TotalFileSize = TotalBytesWritten
End If

Get #1, , bdata
objPutStream.Write bdata, TotalBytesWritten
Debug.Print TotalBytesWritten, _
objPutStream.BytesWritten, _
objPutStream.ErrNumber, _
objPutStream.ErrDescription
TotalBytesWritten = TotalFileSize - _
TotalBytesWritten
End If

Wend

objPutStream.SetComplete
Close #1
objDoc.Update
If objDoc.ErrNumber <> 0 Then
Debug.Print objDoc.ErrNumber, _
objDoc.ErrDescription
End If
Set objPutDoc = Nothing
Set objDoc = Nothing
Debug.Print "Upload completed!"


Thank you in advance.

0
Comment
Question by:howardseay
2 Comments
 

Author Comment

by:howardseay
ID: 20287228
I finally figured it out.  There were a few things wrong.  Here is the corrected block of code.

        Dim FileName
        FileName = "P:\Projects\COH_DIM\images\005.doc"
        Dim fs As FileStream = File.Open(FileName, FileMode.Open, FileAccess.Read)
        Dim breader As BinaryReader = New BinaryReader(fs)
        Dim bdata(1024) As Byte
 
        TotalFileSize = fs.Length
        Dim bytesToWrite As Integer
        bytesToWrite = 1024
        Dim lStart As Long
        Dim lLength As Long
        lStart = 0
        lLength = 1024
        Do
            breader.Read(bdata, 0, lLength)
            objPutStream.Write(bdata, lLength)
            If lStart = TotalFileSize Then Exit Do
 
            If lStart + 1024 > TotalFileSize Then
                lLength = TotalFileSize - lStart - 1
            End If
 
            lStart = lStart + lLength + 1
        Loop
        objPutStream.SetComplete()

Open in new window

0
 

Accepted Solution

by:
EE_AutoDeleter earned 0 total points
ID: 20968295
howardseay,
Because you have presented a solution to your own problem which may be helpful to future searches, this question is now PAQed and your points have been refunded.

EE_AutoDeleter
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes how to use a set of graphical playing cards to create a Draw Poker game in Excel or VB6.
Q&A with Course Creator, Mark Lassoff, on the importance of HTML5 in the career of a modern-day developer.
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…
An introduction to basic programming syntax in Java by creating a simple program. Viewers can follow the tutorial as they create their first class in Java. Definitions and explanations about each element are given to help prepare viewers for future …

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question