Unable to assign values to Document Objects.

Question

Hi,
I am trying to create a Purchase Order via the Business Objects but the code seem to break when I assign a field to a value.
Here is my code:
'To create a new PO
Dim oPurchaseOrder As SAPbobsCOM.Documents
oPurchaseOrder = vCompany.GetBusinessObject(oPurchaseOrders)
oPurchaseOrder.CardCode = cCardCode <--Code breaks here
oPurchaseOrder.CardName = cCardName
oPurchaseOrder.DocDate = cPostingDate
oPurchaseOrder.DocDueDate = cDeliveryDate
In debugging mode, I realise that the code breaks at the first instance where I assign the field to a value.
It will get out of debugging mode without completing the rest of the codes and did not throw any errors.
However, I can assign variables to BusinessObjects.
'Getting Values from Business Partner
Dim oBusinessPartner As SAPbobsCOM.BusinessPartners
oBusinessPartner = vCompany.GetBusinessObject(oBusinessPartners)
        'Retrieve a record by its key from the database
        bCheck = oBusinessPartner.GetByKey(BusinessCode)
          'Checking the result
        If bCheck Then
            cCardName = oBusinessPartner.CardName.ToString
This data retrieval code works but the insertion code fails.
Anybody knows what might cause this?
Thanks!
SAP: Version 2007 B
.NET: Microsoft Visual Studio 2008

Answer 1

Hi All,
Thanks for your replies.
The code works now. I followed the order of insertion from the SDK Business Objects fields and realised that the code failed at the date insertion line.
I reorder the insertion lines from the original one in my earlier post to the one below:
            oPurchaseOrder.DocType = SAPbobsCOM.BoDocumentTypes.dDocument_Items
            oPurchaseOrder.HandWritten = SAPbobsCOM.BoYesNoEnum.tNO
            oPurchaseOrder.DocDate =cPostingDate
            oPurchaseOrder.DocDueDate = cDeliveryDate
            oPurchaseOrder.CardCode = cCardCode
            oPurchaseOrder.CardName = cCardName
However, during debugging mode, the debugger did not traverse through the lines and just exit without prompting any errors.
It seems that the code will break whenever the data assigned is invalid. That makes it harder to trace any bugs.
Anyway, thanks for the assistance and suggestions.