ItemUpdating not showing changed values in SharePoint event receiver

Question

I'm trying to find how a field's value has changed in an ItemUpdat**ing** event receiver. The particular field's display name and internal name is Regions.

As soon as ItemUpdating is hit, the value of the Regions field is identical for the following:

properties.AfterProperties["Regions"]
properties.BeforeProperties["Regions"]
properties.ListItem["Regions"].ToString()

I would expect the latter two to contain the old value but surely AfterProperties should be set correctly.

Does anyone know how I can obtain the changed value?

Update: The event handler is attached to a MOSS 2007 publishing Pages list.

Answer 1

Are you trying this in a List or Document Library ?

It will work Only on the Doc Lib Please refer to these MSDN and another on same subject

Answer 2

I've had a lot of trouble with event handlers on publishing pages libraries. Think it comes from their being other event handlers on there already for publishing. I had better success with updating, can you change to that or do you need the sync event to block the change ?