Add Event On Milestone Change

I am trying to add an event when a milestone gets checked but I am getting an object not set to an instance of an object error.
It is because I am trying to use FWBS.OMS.OMSFile when in the DataBuilder I am usingFWBS.OMS.Milestones_OMS2K which does not have the AddEvent as part of the class.
I have tried referencing FWBS.OMS but am still getting the error. What can I do to get this to work?

The MilestoneEvent is intended to be acted upon with a FilemanagementApplication (aka taskflow). In the Application events node there is a entry OnMilestoneEvent. This event isn't related to OMSFile.AddEvent(..). AddEvent adds a row to the table [dbo].[dbFileEvents].

Is there a way to use the addevent to add a row to dbfileevents when a milestone is ticked or unticked. I want to put some logging around when these are changed and I cannot think of a better way.
If you have a better idea then please let me know.

In your Filemanagement script you code add something similar to:


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public override void OnMilestoneEvent(FWBS.OMS.Extensibility.ObjectEventArgs e, ref bool Handled)
{
FWBS.OMS.ValueChangedEventArgs args = e.Arguments as FWBS.OMS.ValueChangedEventArgs;

if (args == null) return;

if (args.Name.StartsWith(“MSStage”) && args.Name.EndsWith(“Achieved”))
{
CurrentFile.AddEvent(“STGCOMP”, “Stage complete”, args.Name);
}
}

I have tried this and am getting CurrentFile does not exist in the current context. What Class am I missing?
At the moment I have namespace OMS.Scriptlets { using System;
using System.Windows.Forms; using FWBS.Common.UI; using FWBS.Common;
using FWBS.OMS.UI.Windows; using FWBS.OMS;
using FWBS.OMS.Extensibility; Thanks for all your help.