For the DataGrid Control , it connect to a with a ADO Data Control. In the ADO control,
it have a event called "RecordChangeComplete". When a field in a DataGrid Control is modified,
the "RecordChangeComplete" will be triggered. ( )
OnFieldChangeComplete(long cFields, VARIANT FAR* Fields, LPDISPATCH pError, long FAR* adStatus, LPDISPATCH pRecordset)
But, I don't know how to get modified information in the modified colum.