ACC2000: How to Fill a Combo Box with Table Names (210311)

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Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific requirements. The following steps demonstrate how to create and use the sample ListAllTables() function.

1. Start Microsoft Access and open the sample database Northwind.mdb.
2. Insert a new module.
3. On the Tools menu, click References, and select the following references if they are not already selected (checked):
   • Microsoft ActiveX Data Objects 2.1 Library
   • Microsoft ADO Ext. 2.1 for DDL and Security
   
   
4. Type the following code in the module:

   Function ListTables(fld As Control, id As Long, row As Long, _
                          col As Long, code As Integer)
                          
      Dim cat As New ADOX.Catalog
      Dim tbl As ADOX.Table
      Static tbls(256) As String
      Static Entries As Integer
      Dim ReturnVal
      ReturnVal = Null
   
      Select Case code
      
         Case acLBInitialize         ' Initialize database.
            cat.ActiveConnection = CurrentProject.Connection
            Entries = 0
            For Each tbl In cat.Tables
               If tbl.Type = "TABLE" Then
                  If tbl.Name <> "dtproperties" Then
                     tbls(Entries) = tbl.Name
                     Entries = Entries + 1
                  End If
               End If
            Next tbl
            ReturnVal = Entries
         Case acLBOpen               ' Open.
            ReturnVal = Timer        ' Unique ID number for control.
         Case acLBGetRowCount        ' Number of rows.
            ReturnVal = Entries
         Case acLBGetColumnCount     ' Number of columns.
            ReturnVal = 1
         Case acLBGetColumnWidth     ' Column width.
            ReturnVal = -1           ' Use the default width.
         Case acLBGetValue           ' Get the data.
            ReturnVal = tbls(row)
         Case acLBEnd                ' End.
            For Entries = 0 To 256
               tbls(Entries) = ""
            Next
      End Select
      
      ListTables = ReturnVal
   
   End Function
   					

5. On the File menu, click Save databasename.
6. Create a blank new form that is not based on any table or query.
7. Add a combo box control to the form.
8. Set the RowSourceType property of the combo box to ListTables.
9. View the form in Form view. Note that the combo box lists all the tables in the current database.