The Move Complete Event

Visual Studio 6.0

The next stage is to add our MoveComplete event. Here, we will be defining a standard MoveComplete that is built into an ADO data control. If you drew an ADO Data control on your form and double-clicked to open the code window to look at the code, this event would be there. Here, we are simply adding this same event to our code. And since we declared the recordset with the keyword WithEvents, this event will fire in our class just as it would if you used an ADO data control. We must get the 'signature' correct, so be sure you add this exactly as shown.

6.  Add the following code to the adoPublishers_MoveComplete private subroutine in our class module. Even though this looks like a lot of code, we are simply reading the values of the adReason and adStatus parameters that are passed into the event by VB, and displaying them to the user if they have checked the check box on the frmBoundExample form. Add the highlighted code now:

Private Sub adoPublishers_MoveComplete(ByVal adReason As ADODB.EventReasonEnum,
_         ByVal pError As ADODB.Error,
adstatus As ADODB.EventStatusEnum, _         ByVal pRecordSet As ADODB.Recordset) Dim sMessage As String Dim iIndx As Integer If showInfo = True Then sMessage = "Reason: " Select Case adreason    Case adRsnAddNew      sMessage = sMessage & "Adding New Record" & vbCrLf    Case adRsnClose      sMessage = sMessage & "Closing Recordset" & vbCrLf    Case adRsnDelete      sMessage = sMessage & "Deleting Record" & vbCrLf    Case adRsnFirstChange      sMessage = sMessage & "First Change" & vbCrLf    Case adRsnMove      sMessage = sMessage & "Move" & vbCrLf    Case adRsnMoveFirst      sMessage = sMessage & "Move First Record" & vbCrLf    Case adRsnMoveLast      sMessage = sMessage & "Move Last Record" & vbCrLf    Case adRsnMoveNext      sMessage = sMessage & "Move Next Record" & vbCrLf    Case adRsnMovePrevious      sMessage = sMessage & "Move Previous" & vbCrLf    Case adRsnRequery      sMessage = sMessage & "Requering" & vbCrLf    Case adRsnResynch      sMessage = sMessage & "Resynch" & vbCrLf    Case adRsnUndoAddNew      sMessage = sMessage & "Undo Adding New Record" & vbCrLf    Case adRsnUndoUpdate      sMessage = sMessage & "Undoing Update" & vbCrLf    Case adRsnUpdate      sMessage = sMessage & "Updating record" & vbCrLf End Select sMessage = sMessage & "Status: " Select Case adstatus    Case adStatusCancel      sMessage = sMessage & "Cancel" & vbCrLf    Case adStatusCantDeny      sMessage = sMessage & "Cant Deny" & vbCrLf    Case adStatusErrorsOccurred      sMessage = sMessage & "Errors Occured" & vbCrLf    Case adStatusOK      sMessage = sMessage & "Ok" & vbCrLf    Case adStatusUnwantedEvent      sMessage = sMessage & "Unwanted Event" & vbCrLf End Select    iIndx = MsgBox(sMessage, vbOKOnly + vbInformation, _ "Bound Data Class MoveComplete") End If End Sub

So as you can see, the only real code here is in the two Select statements. We are checking the enumerated values of the adReason and adStatus variables passed into the event and displaying them to the user (I just wanted to show you what these items were and how you can grab them if you need to read them).

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