If you are using the wizards to create data adapters and datasets, etc,
you can go through the wizard again. However, it is easier to just
manually add the fields to the dataset schema. Or, you can manually
change the select statements/stored procedures for the data adapter and
then right click the dataadapter, select generate dataset and overwrite
your currrent one. Unfortunately, there is not an automatic refresh of
the schema when database changes are made.