Running Crystal Reports in a batch service.

Question

Post Author: RichardP
CA Forum: General
I have set a Windows service to a run a Crystal Reports, and the code is as follows:-
Public Class WebForm1
Inherits System.Web.UI.Page
Dim crReport As New ReportDocument
Dim strConn As String = ConfigurationSettings.AppSettings("WebOASISConn")
#Region " Web Form Designer Generated Code "
'This call is required by the Web Form Designer.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
End Sub
Protected WithEvents CrystalReportViewer1 As CrystalDecisions.Web.CrystalReportViewer
'NOTE: The following placeholder declaration is required by the Web Form Designer.
'Do not delete or move it.
Private designerPlaceholderDeclaration As System.Object
Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeComponent()
End Sub
#End Region
Public Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Put user code to initialize the page here
'CrystalReportViewer1.ReportSource = New WebServ5.STPMBReportService
'Dim NewServ1 As New WebServ5.service
Dim crConnectionInfo As New ConnectionInfo
Dim crConnServer As String = ConfigurationSettings.AppSettings("CrConnServer")
Dim crConnDbName As String = ConfigurationSettings.AppSettings("CrConnDbName")
Dim crConnUserId As String = ConfigurationSettings.AppSettings("CrConnUserId")
Dim crConnPassword As String = ConfigurationSettings.AppSettings("CrConnPassword")
'Dim err As String
'Try
crConnectionInfo.ServerName = crConnServer
crConnectionInfo.DatabaseName = crConnDbName
crConnectionInfo.UserID = crConnUserId
crConnectionInfo.Password = crConnPassword
'C:\Inetpub\wwwroot\WebServ5
'crReport.Load("http://localhost/WebServ5/STDPOReportService.asmx")
crReport.Load("http://localhost/WebServ5/STDPOReportService.asmx")
' crReport.Load(Server.MapPath("STDPOReportService.asmx"))
' Catch ex As Exception
'Err = ex.Message
'End Try
'(Server.MapPath("STDPOReport.rpt"))
'Dim reportName As Request.QueryString = "STDPOReport"
'CrystalReportViewer1.LogOnInfo.Add(CObj(crConnectionInfo))
'rystalReportViewer1.LogOnInfo.Item()
SetLogOnInfo(crConnServer, crConnDbName, crConnUserId, crConnPassword, "due_in")
SetLogOnInfo(crConnServer, crConnDbName, crConnUserId, crConnPassword, "stores_item")
SetLogOnInfo(crConnServer, crConnDbName, crConnUserId, crConnPassword, "unit_info")
'CrystalReportViewer1.ReportSource = "http://localhost/WebServ5/STDPOReportService.asmx"
CrystalReportViewer1.ReportSource = crReport
Dim myTable As CrystalDecisions.CrystalReports.Engine.Table
Dim MyLogonInfo As CrystalDecisions.Shared.TableLogOnInfo
For Each myTable In crReport.Database.Tables
'&#91;With MyLogonInfo.ConnectionInfo
'End With
MyLogonInfo.ConnectionInfo = crConnectionInfo
myTable.ApplyLogOnInfo(MyLogonInfo)
Next
End Sub
Private Sub SetLogOnInfo(ByVal server As String, ByVal database As String, _
ByVal userID As String, ByVal password As String, ByVal _
table As String)
Dim logOnInfo As New TableLogOnInfo
logOnInfo = crReport.Database.Tables.Item(table).LogOnInfo
' Set the connection information for the table in the report.
logOnInfo.ConnectionInfo.ServerName = server
logOnInfo.ConnectionInfo.DatabaseName = database
logOnInfo.ConnectionInfo.UserID = userID
logOnInfo.ConnectionInfo.Password = Password
logOnInfo.TableName = table
End Sub
End Class
But when I attempt to run it I get this message:-
Server Error in '/WebApp5' Application.
Load report failed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: CrystalDecisions.CrystalReports.Engine.LoadSaveReportException: Load report failed.
Source Error:
Line 56:         crConnectionInfo.UserID = crConnUserId
Line 57:         crConnectionInfo.Password = crConnPassword
Line 58:         crReport.Load("http://localhost/WebServ5/STDPOReportService.asmx")
Line 59:
Line 60:
Source File: c:\inetpub\wwwroot\WebApp5\WebForm1.aspx.vb    Line: 58
Stack Trace:
&#91;LoadSaveReportException: Load report failed.&#93;
   &#91;1&#93;.&#91;1&#93;I(String   , EngineExceptionErrorID  )
   &#91;1&#93;.&#91;1&#93;E(String  , Int32  )
   CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String reportName, OpenReportMethod openMethod, Int16 parentJob)
   CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String reportName)
   WebApp5.WebForm1.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\WebApp5\WebForm1.aspx.vb:58
   System.Web.UI.Control.OnLoad(EventArgs e)
   System.Web.UI.Control.LoadRecursive()
   System.Web.UI.Page.ProcessRequestMain()
Version Information: Microsoft .NET Framework Version:1.1.4322.2032; ASP.NET Version:1.1.4322.2032
Any ideas anyone?

Answer 1

Hi,
I came across this and a hundred other problems when
trying to integrate Crystal into our application
framework. I agree with the previous post - crystal
either don't have a testing department for the JRC or
don't care about us :(
Anyhow, the solution I found was to create a pretend,
wrapper JDBC connection driver, which I fix in my
web.xml to the ODBC name my reports use. When the
Crystal control transfers to the connect method of my
driver, I route it to the correct database with
credentials and return a connection from the real
JDBC driver. Works a treat.
Hope this helpsHi,
How and where do you 'route' your handmade connection to JRC?
I set the user and password as in the documentaion described to the ConnectionInfo - collection, provide this to the viewer and nothing works...
When appending user & password info to the jdbc connect url (definied in web.xml, jndi) the report runs. But this solution isn't very flexible ...