References.ItemAdded Event (Access)
The ItemAdded event occurs when a reference is added to the project from Visual Basic.
The ItemAdded event applies to the References collection. It isn't associated with a control, form, or report, as are most other events. Therefore, in order to create a procedure definition for the ItemAdded event procedure, you must use a special syntax.
The ItemAdded event can run only an event procedure when it occurs, it cannot run a macro.
This event occurs only when you add a reference from code. It doesn't occur when you add a reference from the References dialog box, available by clicking References on the Tools menu when the Module window is the active window.
The following example includes event procedures for the ItemAdded and ItemRemoved events. To try this example, first create a new class module by clicking Class Module on the Insert menu. Paste the following code into the class module and save the module as RefEvents:
' Declare object variable to represent References collection. Public WithEvents evtReferences As References ' When instance of class is created, initialize evtReferences ' variable. Private Sub Class_Initialize() Set evtReferences = Application.References End Sub ' When instance is removed, set evtReferences to Nothing. Private Sub Class_Terminate() Set evtReferences = Nothing End Sub ' Display message when reference is added. Private Sub evtReferences_ItemAdded(ByVal Reference As _ Access.Reference) MsgBox "Reference to " & Reference.Name & " added." End Sub ' Display message when reference is removed. Private Sub evtReferences_ItemRemoved(ByVal Reference As _ Access.Reference) MsgBox "Reference to " & Reference.Name & " removed." End Sub
The following Function procedure adds a specified reference. When a reference is added, the ItemAdded event procedure defined in the RefEvents class runs.
' Create new instance of RefEvents class. Dim objRefEvents As New RefEvents ' Pass file name and path of type library to this procedure. Function AddReference(strFileName As String) As Boolean Dim ref As Reference On Error GoTo Error_AddReference ' Create new reference on References object variable. Set ref = objRefEvents.evtReferences.AddFromFile(strFileName) AddReference = True Exit_AddReference: Exit Function Error_AddReference: MsgBox Err & ": " & Err.Description AddReference = False Resume Exit_AddReference End Function