[AccessD] Using the clsCacheState

Place the following in a module

Option Compare Database
Option Explicit

Private cCacheState As clsCacheState

Public Function cCState() As clsCacheState
     If cCacheState Is Nothing Then
         Dim db As DAO.Database
         Set db = CurrentDb
         Set cCacheState = New clsCacheState

         'The table and field names below must be changed to match your table names
         cCacheState.mInit db, "usystblPLSSysVars", "PLSSV_Name", "PLSSV_Val", "PLSDataUpdate"
     End If
     Set cCState = cCacheState
End Function

Create a table named usystblPLSSysVars with field names PLSSV_Name and PLSSV_Val.  Create a record 
with the values PLSDataUpdate in the PLSSV_Name and anything at all in PLSSV_Val.

You can actually create a table of any name with fields named whatever you want, but the above works 
with the module above so if you create your own table you will need to modify the test code above.

Now in the debug window do the following things

cCState.pRefreshed = now()
ccstate.pModified = now()
?ccstate.pRefreshed
12/22/2010 4:50:48 PM
?ccstate.pModified
12/22/2010 4:51:01 PM
?ccstate.pRefreshNeeded
False
True

You can step through and watch the class perform.  You can add the class anywhere that you need to 
monitor a value modified by another user.

-- 
John W. Colby
www.ColbyConsulting.com