public class MyTransaction : BcfTransaction {

    protected internal MyTransaction(BcfTransactionBuilder builder) : base(builder) { }

    // returns true if anything other than columns named "Id" were changed
    public bool HasSeriousChanges() {
        return CompensationRepository.Items.Any(
            item => {
                var setValueItem = item as BcfUndoRedoItemSetValue;
                return setValueItem == null || setValueItem.Cell.Column.Name != "Id";
            });
    }
}

public class MyTransactionFactory : BcfDataSetTransactionFactory {

    protected override BcfTransaction CreateTransaction(BcfTransactionBuilder builder) {
        return new MyTransaction(builder);
    }
}

public class MyStateIdBehavior : BcfDataSetStateIdBehavior {

    protected override Guid Generate(BcfTransaction transaction) {
        if (((MyTransaction) transaction).HasSeriousChanges()) {
            // there were serious changes -> generate a new state id
            return base.Generate(transaction);
        }
        // no serious changes -> return previous state id
        return Value;
    }
}

partial class SampleDataSet {

    private Guid acceptedStateIdField;

    public bool HasChanges {
        get {
            return Behavior.StateIdItem.Value != acceptedStateIdField;
        }
    }

    public void AcceptChanges() {
        acceptedStateIdField = Behavior.StateIdItem.Value;
    }
}

...
// - modifying DataSetSetup to use my transaction and my state id behavior -
// you should use BCF Editor to add the behaviors
// however - this lines shows how to do this in code
var mySampleDataSetSetup = new SampleDataSetSetup();
mySampleDataSetSetup.BehaviorItems.Add(new MyTransactionFactory());
mySampleDataSetSetup.BehaviorItems.Add(new MyStateIdBehavior());
var mySampleDataSet = new SampleDataSet(mySampleDataSetSetup);
...