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How can i refresh report values from the database

dayiku asked
Medium Priority
Last Modified: 2010-05-01
I have a vb application that pulls up a crystal report.
I can view the report but for some reason i cannot view updated values from the database.
Can somebody help me on how to refresh the report so that any data added or removed will show up on the prompts for the report.
Below is my code,

    Set Report = Appl.OpenReport("c:\crystal_report.rpt")

    Report.Database.Tables(1).SetLogOnInfo "machinename", "databasename", "userid", "password"
    CRViewer1.DisplayToolbar = True
    CRViewer1.EnableRefreshButton = True

    CRViewer1.ReportSource = Report

I am connecting to an oracle database through an odbc connection
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I believe you can get rid of saved data in 2 ways.  One of them you already have done by doing Report.DiscardSavedData
If you have access to the report file itself, and can edit it then you should check the File menu and see if the "Save data with report" menu item is checked. If it is, then uncheck it and save the report. That usually solves it.

If that doesn't work then try the ReadRecords method of the report object like this:
Set Report = Appl.OpenReport("c:\crystal_report.rpt")

    Report.Database.Tables(1).SetLogOnInfo "machinename", "databasename", "userid", "password"

If you still can't get it to work, please let us know which version of Crystal reports your're using.

Good luck,




That did not work.
I opened up the file in Crystal Reports and the "Save data with report" was unchecked"
I then added the Report.ReadRecords to my file but i still get the same values.
I have version 8.5
The following code has worked for me for quite a while. This code is from an app in VB6 using Crystal Developer 8.5 to create the report files. The application opens the report files in a form with the crviewer.dll


Dim crxTable As CRAXDRT.DatabaseTable   ' crystal reports API - table object
   Dim m_crxApp as CRAXDRT.Application  
      Set m_crxApp = New CRAXDRT.Application

      ' log on to the server - if we don't do this here, the report can't be viewed
      m_crxApp.LogOnServer "P2SODBC.DLL", DSN_Name, Database_Name, Login_Name, Password

For SQL Server Database

      ' open report object
      Set m_crxReport = m_crxApp.OpenReport(ReportFileName_And_Path, 1)
      ' set each table to the correct DSN, DB, UID and PWD
      ' this is different for SQL databases - this allows us to use different
      ' settings than originally stored in the report
      For Each crxTable In m_crxReport.Database.Tables
         crxTable.SetLogOnInfo DSN_Name, Database_Name, Login_Name, Password
      Next crxTable

For Access Database
      Set m_crxApp = New CRAXDRT.Application
      ' open report object
      Set m_crxReport = m_crxApp.OpenReport(ReportFileName_And_Path, 1)
      ' make sure each table in the report points to the correct database ....
      ' this will allow you to use any name for the database, instead of just the
      ' one that was saved with the report file - and allow us to store the reports
      ' anywhere we want instead of in the same folder with the database.
      For Each crxTable In m_crxReport.Database.Tables
         crxTable.Location = Database_Name_Path
      Next crxTable

Perhaps your report is not connecting to the Database properly and therefore only shows the saved records?

Good luck.

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Actually it seems to be connecting properly.
Do you have the instructions for connecting to an oracle database?
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