We are using VB.NET 2005 to develop a WinForms application that uses SQL Server 2005 Reporting Services to produce reports. We want to print a large report programmatically without preview. RSClientPrint looked like a good solution but it produces an error when we try to use it. Details...I added Interop.RSClientPrintLib.dll Version 1.0.0.0 to my application and used the code sample I found at: http://msdn2.microsoft.com/en-us/library/ms159195.aspxThe call to print looks like:RSClientPrint.Print("http://ourServer/reportserver", strReportPathParameters, "Report_name")This call generates an error message:"An error occured during printing. (0x80004002)"and throws an exception: "Specified cast is not valid" Any ideas appreciated.

I think it wouldhelp if you include in your post the line of code that sets the strReportPathParameters parameter... The entire code block would be even better.

The entire block of code follows: Dim RSClientPrint As New RSClientPrintLib.RSClientPrint RSClientPrint.MarginLeft = 12.7 RSClientPrint.MarginTop = 12.7 RSClientPrint.MarginRight = 12.7 RSClientPrint.MarginBottom = 12.7 RSClientPrint.Culture = 1033 RSClientPrint.UICulture = 9 Dim strReportPathParameters As String = "" Dim strTempValue As String = "" Dim iCounter As Integer = 0 Dim myEnumerator As IEnumerator = _ m_parameterValues.GetEnumerator Dim aParameterValue As ParameterValue While myEnumerator.MoveNext() aParameterValue = CType(myEnumerator.Current, ParameterValue) strTempValue = aParameterValue.Value strTempValue = strTempValue.Trim strReportPathParameters += "&" + _ aParameterValue.Name + "=" + strTempValue End While strReportPathParameters = "%2fAppFolder%2ftax_invoice" _ + strReportPathParameters 'Copy from the help file'RSClientPrint.Print("http://localhost/rtm", "%2fEmployee_Sales_Summary&ReportMonth=6&ReportYear=2004&EmpID=20", "Employee_Sales_Summary") 'Our call that generates the errorsRSClientPrint.Print("http://ourserver/reportserver", strReportPathParameters, "Tax_Invoice")

Hi mate, I got exactly the same problem as you did, have you got any clue now? Thanks.

Any updates on this situation?.. I'm in the exact same boat

Hello i have the same problem. Anyone know the answer? thanks