Crystal Reports Logon Failed

The Beginner · January 16th, 2009, 11:51 PM

Hi,
I have developed an applicaion in vb.net which has a few crystal reports. I'm using MS Access database. Every thing is working fine on my development machine. But the logon failed error pops up on the deployment machine. I have googled for about a week now but to no avail. The code is as follows:

Code:

Dim crSections As Sections
Dim crSection As Section
Dim crReportObjects As ReportObjects
Dim crReportObject As ReportObject
Dim myTable As CrystalDecisions.CrystalReports.Engine.Table
Dim myLogin As CrystalDecisions.Shared.TableLogOnInfo
Dim crSubreportObject As SubreportObject
Dim crSubreportDocument As ReportDocument
Dim crDatabase As Database
Dim crTables As Tables
Dim aTable As Table
Dim crTableLogOnInfo As TableLogOnInfo
Dim repDoc as new Result 'Result is the report doc .rpt
 
ForEach myTable In repDoc.Database.Tables
myLogin = myTable.LogOnInfo
myLogin.ConnectionInfo.Password = ""
myLogin.ConnectionInfo.UserID = "Admin"
myTable.ApplyLogOnInfo(myLogin)
Next
crSections = repDoc.ReportDefinition.Sections
'loop through all the sections to find all the report objects
ForEach crSection In crSections
crReportObjects = crSection.ReportObjects
'loop through all the report objects in there to find all subreports 
ForEach crReportObject In crReportObjects
If crReportObject.Kind = ReportObjectKind.SubreportObject Then
crSubreportObject = CType(crReportObject, SubreportObject)
'open the subreport object and logon as for the general report
crSubreportDocument = crSubreportObject.OpenSubreport(crSubreportObject.SubreportName)
crDatabase = crSubreportDocument.Database
crTables = crDatabase.Tables
ForEach aTable In crTables
crTableLogOnInfo = aTable.LogOnInfo
crTableLogOnInfo.ConnectionInfo.UserID = "Admin"
crTableLogOnInfo.ConnectionInfo.Password = ""
'crTableLogOnInfo.ConnectionInfo.DatabaseName = Application.StartupPath & "\Taxi Training Software Db.mdb"
aTable.ApplyLogOnInfo(crTableLogOnInfo)
Next
EndIf
Next
Next
CrystalReportViewer1.ReportSource = repDoc

One thing i dont understand is what should i specify as Server name for Access DB.

Kindly, plz help me if u know whats wrong or if u know the solution to this problem.

Thanx

gbianchi · January 17th, 2009, 09:42 AM

Hello. And did you try taking everything out?? why login to an access database that doesn't have a password nor an user?

The Beginner · January 17th, 2009, 11:35 AM

Even I cannot understand that. It does not have any username and password. I did not have the above code included before. It was working fine on my development machine. Even now it is. But on another system... I can't find a way to make it work. I am so fed up and stuck in this. What I am thinking now is that it might not be an issue with the database. It might be an issue with the crystal reports. Please HELP!!! this is urgent as my project is lingering on just because of this stupid error.

The Beginner · January 19th, 2009, 12:36 PM

Hi everyone,

I finally found out the solution to the problem myself.
Silly Errors are always the hardest ones to solve.
Same is the case over here.
As the Logon Dialog makes us all think that there's a great security issue associated with it, there isn't.

My mistake where i figured it out was that the report document uses the absolute full path of db included in the application.

So just modifying

Code:

ForEach myTable In repDoc.Database.Tables
myLogin = myTable.LogOnInfo
myLogin.ConnectionInfo.ServerName = Application.StartupPath & "\Db.mdb"
myLogin.ConnectionInfo.DatabaseName = Application.StartupPath & "\Db.mdb"
myTable.ApplyLogOnInfo(myLogin)
Next

solved my problem.
I totally ommitted the Username and password and instead provided the path to the db.

Hope it might help someone else who is also banging his/her head

in front of the PC like i did for over a week....

lee_suko · October 4th, 2010, 03:03 AM

here is complete example

http://csharp.net-informations.com/c...amic-login.htm

Lee.