Settings to access printer '\\hercules\prtmark01' are not valid

Question

We recently upgraded our web application to VS.Net 2005 and CR XIr2 from VS.Net 2003 & CR 9.2. We load a report using the ReportDoument class from a UNC path and call the PrintToPrinter method. It works fine on .Net 1.1 & CR 9.2 but with the .Net 2.0 web app & CR XIr2 we get the following error:

Exception Details: System.Drawing.Printing.InvalidPrinterException: Settings to access printer '\\hercules\prtmark01' are not valid.

Here is the code we use to load the report and print it:

oRpt.Load("\\pegasus\reports\warehouse\batchheader.rpt")

        Dim crConnectionInfo As ConnectionInfo
        Dim crDatabase As Database
        Dim crTables As Tables
        Dim crTable As Table
        Dim crTableLogOnInfo As TableLogOnInfo

        crConnectionInfo = New ConnectionInfo

        With crConnectionInfo
          .ServerName = "***"       
          .DatabaseName = "***"   
          .UserID = "***"               
          .Password = "***"            
        End With

        crDatabase = oRpt.Database
        crTables = crDatabase.Tables

        For Each crTable In crTables
          crTableLogOnInfo = crTable.LogOnInfo
          crTableLogOnInfo.ConnectionInfo = crConnectionInfo
          crTable.ApplyLogOnInfo(crTableLogOnInfo)
        Next

        oRpt.SetParameterValue("Company", iComp)
        oRpt.SetParameterValue("CartBatchNbr", iCartBatchNbr)

        Try
            oRpt.PrintOptions.PrinterName = sPrinter
            oRpt.PrintToPrinter(1, False, 0, 0)
        Catch ex As Exception
            sErr = "Unable to send Batch Header to printer '" & sPrinter & "'." & vbCrLf & ex.Message
            Return False
        Finally
            oRpt.Close()
        End Try

I can get both the .Net 2.0 & 1.1 web app to work on a Windows 2000 Server but only the .Net 1.1 application works on Windows 2003 Server.

Any Help would be appreciated. We will probably be opening a support case.

Answer 1

Did you ever get this issue resolved? After upgrading to asp.net 2.0, we're having the exact same issue on our web server. Everything seems to work fine when running locally, but we get the InvalidPrinterException when PrintToPrinter is called from the Web server. If you've got any ideas on this, I'd love to heard them. Thanks.

Answer 2

hi,

you have to have an ntfs permission from the printer.

this has to be granted to you bby your network administrator

regards

joeydd

 

Answer 3

for anyone still looking for a solution to this issue. It took me many hours of research but i finally got it going

you need to stop the impersonation while you send the document to the printer

using (WindowsImpersonationContext wic = WindowsIdentity.Impersonate(IntPtr.Zero)) {
          //code to send printdocument to the printer
 }

for additional infomation see

http://msdn.microsoft.com/en-us/library/ms998351.aspx

Answer 4

the solution is stupid but it works.

Answer 5

for anyone still looking for a solution to this issue. It took me many hours of research but i finally got it going

you need to stop the impersonation while you send the document to the printer

using (WindowsImpersonationContext wic = WindowsIdentity.Impersonate(IntPtr.Zero)) {
     //code to send printdocument to the printer
 }

for additional infomation see

http://msdn.microsoft.com/en-us/library/ms998351.aspx

Don't forget to call  wic.Undo() in a finally clause to make sure that the rest of the system goes back to how it was. No?

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