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Database Logon Failed (ASP.NET/Crystal Reports XI R 2)

Posted on 2008-10-03
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Last Modified: 2013-11-07
I have a crystal report with several subreports linked to the main report via a parameter, in an asp.net application. Whenever I am trying to convert it behind the scenes into a PDF, it does the job just fine on my local machine. The problem is that it throws a database logon failed exception on the server and I have no idea what else I can do to make it work...

Please, help!
''' <summary>
    ''' This method converts a crystal report into a PDF file
    ''' </summary>
    Private Sub ExportToStream()
        Dim oStream As New IO.MemoryStream
        Dim rptDocument As ReportDocument = New ReportDocument()
        Dim subreport As ReportDocument
        Dim parmName As String = "@MrId"
        Dim parmValue As Integer = SessionData.EssInfo.MrId
        Dim exportOpts As ExportOptions = New ExportOptions()
        Dim pdfOpts As PdfRtfWordFormatOptions = ExportOptions.CreatePdfRtfWordFormatOptions()
        Dim logon As New TableLogOnInfo
        Dim tbl As Table
        Dim serverName1 As String = PCON.APP.db_Server
        Dim dbName As String = PCON.APP.dbName
        Dim userID As String = PCON.APP.UserName
        Dim password As String = PCON.APP.Pass
 
        Try
            exportOpts.ExportFormatType = ExportFormatType.PortableDocFormat
            exportOpts.ExportFormatOptions = pdfOpts
            rptDocument.FileName = PCON.APP.FileName(SessionData.EssInfo.EssCategoryId)
            rptDocument.SetParameterValue(parmName, parmValue)
 
            ' Set Database Logon to main report
            For Each tbl In rptDocument.Database.Tables
                logon = tbl.LogOnInfo
                SetLogonInfo(logon)
                tbl.ApplyLogOnInfo(logon)
            Next tbl
 
            'Provide database credentials to subreports
            For Each subreport In rptDocument.Subreports
                For Each tbl In subreport.Database.Tables
                    logon = tbl.LogOnInfo
                    SetLogonInfo(logon)
                    tbl.ApplyLogOnInfo(logon)
                Next 'Tbl
            Next 'Subreport
 
            rptDocument.SetDatabaseLogon(userID, password, serverName1, dbName)
            oStream = CType(rptDocument.ExportToStream(ExportFormatType.PortableDocFormat), IO.MemoryStream)
            Response.ContentType = "application/pdf"
            rptDocument.Close()
            rptDocument.Dispose()
            Response.BinaryWrite(oStream.ToArray())
 
            HttpContext.Current.ApplicationInstance.CompleteRequest()
 
        Catch ex As Exception
            Response.Write(ex)
        Finally
            oStream.Flush()
        End Try
    End Sub
 
    Private Sub SetLogonInfo(ByRef logon As TableLogOnInfo)
        logon.ConnectionInfo.ServerName = PCON.APP.db_Server
        logon.ConnectionInfo.DatabaseName = PCON.APP.dbName
        logon.ConnectionInfo.UserID = PCON.APP.UserName
        logon.ConnectionInfo.Password = PCON.APP.Pass
    End Sub

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Question by:GrigoryR
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10 Comments
 

Expert Comment

by:bigmike12396
ID: 22635299
What app is running on the server?
0
 

Author Comment

by:GrigoryR
ID: 22636140
IIS and SQL Server 2005
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 22637036
Try commenting out line 41.

You are setting the logon information for each table.  You may be overriding it when you set the report document logon info.

mlmcc
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Author Comment

by:GrigoryR
ID: 22637090
I think I already tried that and decided to keep it there because it actually made it possible to login to the DB on my local machine... For some reason, it doesn't work the same way on the server... It seems that ApplyLogOnInfo method doesn't work...
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 22637634
Where do youopen the report document?

Are the logon values set correctly?

mlmcc
0
 

Author Comment

by:GrigoryR
ID: 22639456
The report is being opened in the browser. The logon values are retrieved from the web.config, and I already tested those values by logging into the SQL Server with those credentials. I am not sure why I am getting this exception, since I am providing all the information required for successful login... At least, I think so.
0
 

Expert Comment

by:KS_Mis
ID: 22783045
I would try three things.
  1. try making sure that your data souce (if it is not localhost) uses the ip address of the machine, if you are using a dataset and setting the report source that way then make sure your Data Source key in your connection string value is setup like this: Data Source=tcp:127.0.0.1,1433; User ID= yada yada).
  2. try looping through your subreports the same as you do now and instead of using the tables logoninfo just set each subreports connection info like this:

    for(int i=0;i<reportDoc.subreports.count;i++)
  3. Make sure that the server has both the same crystal decisions dll's as your local machine and also make sure that if your report uses the SQL Native Client ADO connection type that the SQL Native Client is actually setup on the host machine.  I did a project once that did not have the native client setup on it and it continuously threw logon exception errors.
0
 

Expert Comment

by:KS_Mis
ID: 22783049
i don't know what happened on my previous post but the code was supposed to look like this:
for(int i=0;i<reportDoc.subreports.count;i++) {
        reportDoc.subreports[i].SetDatabaseLogon("userid","password","server","db");
}
0
 

Accepted Solution

by:
GrigoryR earned 0 total points
ID: 22786046
I solved the problem by implementing the push approach and embedding the subreports into the main report instead of using pre-existing reports as subreports. This way I made sure that all the subreports and the main report used exactly the same connection.
0
 

Author Comment

by:GrigoryR
ID: 22786076
SetDatabaseLogon does not work for subreports
0

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