public static IEnumerable <CriteriaOperator> GetOperators(this CriteriaOperator criteriaOperator)
{
if (criteriaOperator is FunctionOperator)
{
return((IEnumerable <CriteriaOperator>)criteriaOperator.GetPropertyValue("Operands"));
}
var binaryOperator = criteriaOperator as BinaryOperator;
if (binaryOperator != null)
{
return new[] { binaryOperator.LeftOperand, binaryOperator.RightOperand }
}
;
var unaryOperator = criteriaOperator as UnaryOperator;
if (unaryOperator != null)
{
return(unaryOperator.Operand.GetOperators());
}
var betweenOperator = criteriaOperator as BetweenOperator;
if (betweenOperator != null)
{
return new[] { betweenOperator.TestExpression, betweenOperator.BeginExpression, betweenOperator.EndExpression }
}
;
return(Enumerable.Empty <CriteriaOperator>());
}