Microsoft
Software
Hardware
Network
Question : MS Access Audit using Screen.ActiveControl.OldVa<wbr />lue
I'm trying to create an audit file that tracks the changes made to a form. everytime i execute it i'm getting expression has no value for the screen.activecontrol.old value.
Any help would be appreciated.
Below is the code.
Option Explicit
Private Declare Function apiGetUserName Lib "advapi32.dll" Alias _
"GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Function fOSUserName() As String
' Returns the login name for Adminstrator use
Dim lngLen As Long, lngX As Long
Dim strUserName As String
strUserName = String$(254, 0)
lngLen = 255
lngX = apiGetUserName(strUserName
, lngLen)
If (lngX > 0) Then
fOSUserName = Left$(strUserName, lngLen - 1)
Else
fOSUserName = vbNullString
End If
End Function
Function TrackChanges()
Dim db As DAO.Database
Dim rs As DAO.Recordset
Dim strSQL As String
Dim strCtl As String
strCtl = Screen.ActiveControl.Name
strSQL = "SELECT Audit.* FROM Audit;"
Set db = CurrentDb()
Set rs = db.OpenRecordset(strSQL, dbOpenDynaset)
If rs.RecordCount > 0 Then rs.MoveLast
With rs
.AddNew
rs!FormName = Screen.ActiveForm.Name
rs!ControlName = strCtl
rs!DateChanged = Date
rs!TimeChanged = Time()
rs!PriorInfo = Screen.ActiveControl.OldVa
lue
rs!NewInfo = Screen.ActiveControl.Value
rs!CurrentUser = fOSUserName
.Update
End With
Set db = Nothing
Set rs = Nothing
End Function
Answer : MS Access Audit using Screen.ActiveControl.OldVa<wbr />lue
ok ... but even on an existing record, if a given field has never had a value entered and save, then there is no OldValue.
Random Solutions
CRM 4.0: issues pre-populating a Currency lookup and money field ("A currency is required if a value exists in a money field")
Pass variable from one field to the next and save variable in table
Append.dif file to Access 2007 table
Import multiple Excel workbooks into a single Access Table
CToolBar derived Toolbar repositioning
Windows Server 2008 Backup
Remove underscore from begining of filenames?
How to Create an On Key Press Event in Visual Studio 2005
How to enable/disable a succeeding dropdown list if a value is selected on the first drop down list
Tables with fixed number of rows