[RESOLVED] How to programmatically set data source for Crystal Reports basic for VS 2008?

I have created and tested my reports on the development pc and it works fine. For these reports, I have used the database expert and set my desired database and tables etc. I use OLEDB and Access .mdb file as my database.

Now that I want to deploy my application, I am getting a login failure in the client machine. I want the reports to connect to the database I am packing in the setup. I want something like the Application.StartUpPath so that the reports will extract data from the database no matter where the user installs the application.

Please help!

Study this general information about VB.NET & Crystal Reports , it could be helpful
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'To pass logon information to a Crystal Report at runtime

Code:

---

Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared

Dim crtableLogoninfos As New TableLogOnInfos()
Dim crtableLogoninfo As New TableLogOnInfo()
Dim crConnectionInfo As New ConnectionInfo()
Dim CrTables As Tables
Dim CrTable As Table
Dim TableCounter

---

'If you are using a Strongly Typed report (Imported in your project) named CrystalReport1.rpt use the following:

Code:

---

Dim crReportDocument As New CrystalReport1()

---

'If you are using a Non-Typed report, and loading a report outside of the project, use the following:

Code:

---

Dim crReportDocument As New ReportDocument()

crReportDocument.Load("c:\myReports\myReport.rpt")

---

'Set the ConnectionInfo properties for logging on to the Database

'If you are using ODBC, this should be the DSN name NOT the physical server name.
'If you are NOT using ODBC, this should be the physical server name

Code:

---

With crConnectionInfo
    .ServerName = "DSN or Server Name"
'If you are connecting to Oracle there is no DatabaseName. Use an empty string.
'For example, .DatabaseName = ""
    .DatabaseName = "DatabaseName"
    .UserID = "Your User ID"
    .Password = "Your Password"
End With

---

'This code works for both user tables and stored procedures.
'Set the CrTables to the Tables collection of the report

Code:

---

CrTables = crReportDocument.Database.Tables

'Loop through each table in the report and apply the LogonInfo information
For Each CrTable in CrTables
    CrTableLogonInfo = CrTable.LogonInfo
    CrTableLogonInfo.ConnectionInfo = crConnectionInfo
    CrTable.ApplyLogOnInfo(crtableLogoninfo)

    'If your DatabaseName is changing at runtime, specify the table location.
    'For example, when you are reporting off of a Northwind database on SQL server you should have the following line of code:
    crTable.Location = "Northwind.dbo." & crTable.Location.Substring(crTable.Location.LastIndexOf(".") + )
Next


'Set the viewer to the report object to be previewed.
CrystalReportViewer1.ReportSource = crReportDocument

---

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If you are changing database at runtime, it is important that you specify the table location after you apply logon information (this is a case sensitive property).
You can either specify the table name only or the fully qualified table name such as
crTable.location = "databaseName.dbo.tablename"

Refer to knowledge base article c2010275 if you wish to change database logon information in the main and subreport.
If you are reporting off an Access database, then specify either the 'ServerName' or 'DatabaseName' to the 'ConnectionInfo' Object depending on how you are connecting to Access.
For example, if you are connecting to Access through ODBC, then set the 'DatabaseName' for the 'ConnectionInfo' object as follows:

Code:

---

With crConnectionInfo
    .DatabaseName = "C:\mydatabase\mydata.mdb"
End With

---

If you are connecting to Access through OLE DB, then set set the 'ServerName':

Code:

---

With crConnectionInfo
    .ServerName = "C:\mydatabase\mydata.mdb"
End With

---

It is not possible to report of a secured Access database using a native connection.
See knowledge base article C2010460 for more information.

If you are using more than one database with different usernames and passwords, use a loop to pass in the different values.

Thanks a lot for the quick reply ... I will try it out now and post my results... wish me luck ... n thanks again for the detailed description!

I am using the following code:

Private Sub frmRptInv_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim cr As New ReportDocument
Dim crCon As New ConnectionInfo
Dim crtableLogoninfos As New TableLogOnInfos
Dim crtableLogoninfo As New TableLogOnInfo
Dim CrTables As Tables
Dim CrTable As Table


cr.Load(Application.StartupPath & "\Reports\crInv.rpt")

With crCon
.ServerName = Application.StartupPath & "\Database\sales_stocks.mdb"
.UserID = "Admin"
.Password = "MyPass"
End With

CrTables = cr.Database.Tables
For Each CrTable In CrTables
crtableLogoninfo = CrTable.LogOnInfo
crtableLogoninfo.ConnectionInfo = crCon
CrTable.ApplyLogOnInfo(crtableLogoninfo)
Next

Dim pfDefs As ParameterFieldDefinitions
Dim pfDef As ParameterFieldDefinition

Dim pVal As New ParameterValues
Dim pDisVal As New ParameterDiscreteValue

' Customer Code
pDisVal.Value = rlong
pfDefs = cr.DataDefinition.ParameterFields
pfDef = pfDefs.Item("InvId")
pVal = pfDef.CurrentValues

pVal.Clear()
pVal.Add(pDisVal)

pfDef.ApplyCurrentValues(pVal)

' Load Report to cr viewer
crv.ReportSource = cr
crv.Refresh()
End Sub

It was working perfectly till I added the password to the .mdb file. Now, I'm getting the LogOn Failed Error. You said something about a secured access database and not being able to report off it. Please explain that! Where are the Knowledge Base Articles you are talking about?

I dont know why but just modifying

crCon.Password = "MyPass"

with

crCon.Password = Chr(10) & "MyPass"

makes the code perfect again! :)

i am uisng the same code but i get error va\lues cannot be Null . i debgubed fr each balue specified, but i get all teh values