AjScript.Expressions.ConcatenateExpression.Apply C# (CSharp) 메소드

        public override object Apply(object leftValue, object rightValue)
        {
            if (leftValue == null)
                leftValue = string.Empty;

            if (rightValue == null)
                rightValue = string.Empty;

            return Operators.ConcatenateObject(leftValue, rightValue);
        }