private static bool EvaluateComparable()

in src/BehaviorsSDKManaged/Microsoft.Xaml.Interactions/Core/DataTriggerBehavior.cs [153:197]

35 lines of code
10 McCabe index (conditional complexity)


        private static bool EvaluateComparable(IComparable leftOperand, ComparisonConditionType operatorType, IComparable rightOperand)
        {
            object convertedOperand = null;
            try
            {
                convertedOperand = Convert.ChangeType(rightOperand, leftOperand.GetType(), CultureInfo.CurrentCulture);
            }
            catch (FormatException)
            {
                // FormatException: Convert.ChangeType("hello", typeof(double), ...);
            }
            catch (InvalidCastException)
            {
                // InvalidCastException: Convert.ChangeType(4.0d, typeof(Rectangle), ...);
            }

            if (convertedOperand == null)
            {
                return operatorType == ComparisonConditionType.NotEqual;
            }

            int comparison = leftOperand.CompareTo((IComparable)convertedOperand);
            switch (operatorType)
            {
                case ComparisonConditionType.Equal:
                    return comparison == 0;

                case ComparisonConditionType.NotEqual:
                    return comparison != 0;

                case ComparisonConditionType.LessThan:
                    return comparison < 0;

                case ComparisonConditionType.LessThanOrEqual:
                    return comparison <= 0;

                case ComparisonConditionType.GreaterThan:
                    return comparison > 0;

                case ComparisonConditionType.GreaterThanOrEqual:
                    return comparison >= 0;
            }

            return false;
        }