public Comparison (Operation op, IExpression e1, IExpression e2) : base (op, e1, e2) {}
override public object Eval (DataRow row)
+ {
+ return EvalBoolean (row);
+ }
+
+ public override bool EvalBoolean (DataRow row)
{
IComparable o1 = expr1.Eval (row) as IComparable;
IComparable o2 = expr2.Eval (row) as IComparable;