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Parameters Collection, Command property example (VB)

Applies to: Access 2013, Office 2013

The following code demonstrates how to use the Command property with the Command object to retrieve parameter information for the procedure.

 
' BeginParametersVB 
Sub Main() 
 On Error GoTo ProcedureParametersError 
 
 Dim cnn As New ADODB.Connection 
 Dim cmd As ADODB.Command 
 Dim prm As ADODB.Parameter 
 Dim cat As New ADOX.Catalog 
 
 ' Open the Connection 
 cnn.Open _ 
 "Provider='Microsoft.Jet.OLEDB.4.0';" & _ 
 "Data Source='c:\Program Files\Microsoft Office\" & _ 
 "Office\Samples\Northwind.mdb';" 
 
 ' Open the catalog 
 Set cat.ActiveConnection = cnn 
 
 ' Get the command object 
 Set cmd = cat.Procedures("CustomerById").Command 
 
 ' Retrieve Parameter information 
 cmd.Parameters.Refresh 
 For Each prm In cmd.Parameters 
 Debug.Print prm.Name & ":" & prm.Type 
 Next 
 
 'Clean up 
 cnn.Close 
 Set cat = Nothing 
 Set cmd = Nothing 
 Set cnn = Nothing 
 Exit Sub 
 
ProcedureParametersError: 
 
 Set cat = Nothing 
 Set cmd = Nothing 
 
 If Not cnn Is Nothing Then 
 If cnn.State = adStateOpen Then cnn.Close 
 End If 
 Set cnn = Nothing 
 
 If Err <> 0 Then 
 MsgBox Err.Source & "-->" & Err.Description, , "Error" 
 End If 
End Sub 
' EndParametersVB