Microsoft KB Archive/193128

Knowledge Base

How To Create an ODBC and OLEDB Connection Prompt Control in ADO

Article ID: 193128

Article Last Modified on 3/14/2005

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APPLIES TO

• Microsoft ActiveX Data Objects 1.0
• Microsoft ActiveX Data Objects 1.5
• Microsoft ActiveX Data Objects 2.0
• Microsoft ActiveX Data Objects 2.1 Service Pack 2
• Microsoft ActiveX Data Objects 2.5
• Microsoft ActiveX Data Objects 2.6
• Microsoft ActiveX Data Objects 2.7

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This article was previously published under Q193128

SUMMARY

This article demonstrates how to prompt a user for ODBC connect string information such as Server, User ID, Password, Trusted_Connection, Language, and Database using ActiveX Data Objects (ADO).

The article also shows how to display an OLE DB Data Link dialog box to select an OLEDB provider and its properties.

MORE INFORMATION

ODBC Connect String

The following ADO example uses a "DSN-less" ODBC connection so you do not need to set up a data source name (DSN) with the ODBC Admin utility.

1. In Visual Basic 6.0, add a reference to the Microsoft ActiveX Data Objects Library.

2. Paste the following code into the Sub Form_Load() section of a new form or another place in your Visual Basic code:

         Dim conn As ADODB.Connection
         Dim strConn As String
   
         ' Assign the connection string to a variable.
   
         strConn = "DRIVER={SQL Server};SERVER=;UID=;PWD=;DATABASE="
   
         ' Create the Connection object.
         Set conn = New ADODB.Connection
   
         'Assign the connection string and provider, then open the connection.
         With conn
           .ConnectionString = strConn
           .Provider = "MSDASQL"
         ' Valid Enums for the ADO Prompt property are:
         ' adPromptAlways = 1
         ' adPromptComplete = 2
         ' adPromptCompleteRequired = 3
         ' adPromptNever =4
           .Properties("Prompt") = adPromptAlways
           .Open strConn
         End With
                       

OLEDB Data Link Dialog Box

1. Set references to the Microsoft OLE DB Service Component 1.0 Type Library and Microsoft ActiveX Data Objects Library.

2. Use the following code to open a data link dialog box and print the connection string in the immediate window. Add a Command button named btnRunTest and paste the following code into the Click event of the btnRunTest command button:

         Private Sub btnRunTest_Click()
         Dim conn As New ADODB.Connection
         Dim dl As New MSDASC.DataLinks
   
         conn = dl.PromptNew
         Debug.print conn.ConnectionString
   
         End Sub
                       

Additional query words: ADO ODBC OLEDB PROMPT DataLink

Keywords: kbhowto kbprovider kbdatabase KB193128

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