public bool IsCoefficientFormulaValidForFieldset(int fieldsetId, string formula)
        {
            var re = new Regex(@"suma\(i\d+\)");

            formula = formula.Replace(" ", "");
            var mc = re.Matches(formula);

            foreach (Match mt in mc)
            {
                formula = formula.Replace(mt.Value, mt.Value.Replace("suma(", "").Replace(")", ""));
            }

            var indicators = iRepo.GetWhere(new { fieldsetId });
            var calc       = new CalcContext <decimal>();

            foreach (var i in indicators)
            {
                calc.Constants.Add("i" + i.Id, 1);
            }

            try
            {
                calc.Validate(formula);
                return(true);
            }
            catch (SyntaxException)
            {
                return(false);
            }
        }
        public bool IsCoefficientFormulaValidForFieldset(int fieldsetId, string formula)
        {
            var re = new Regex(@"suma\(i\d+\)");
            formula = formula.Replace(" ", "");
            var mc = re.Matches(formula);

            foreach (Match mt in mc)
            {
                formula = formula.Replace(mt.Value, mt.Value.Replace("suma(","").Replace(")",""));
            }

            var indicators = iRepo.GetWhere(new { fieldsetId });
            var calc = new CalcContext<decimal>();

            foreach (var i in indicators)
            {
                calc.Constants.Add("i" + i.Id, 1);
            }

            try
            {
                calc.Validate(formula);
                return true;
            }
            catch (SyntaxException)
            {
                return false;
            }
        }
        public bool IsIndicatorFormulaValidForFieldset(int fieldsetId, string formula)
        {
            var fields = fieldRepo.GetAssigned(fieldsetId);
            var calc   = new CalcContext <decimal>();

            foreach (var field in fields)
            {
                calc.Constants.Add("c" + field.Id, 1);
            }

            try
            {
                calc.Validate(formula);
                return(true);
            }
            catch (SyntaxException)
            {
                return(false);
            }
        }
        public bool IsIndicatorFormulaValidForFieldset(int fieldsetId, string formula)
        {
            var fields = fieldRepo.GetAssigned(fieldsetId);
            var calc = new CalcContext<decimal>();

            foreach (var field in fields)
            {
                calc.Constants.Add("c" + field.Id, 1);
            }

            try
            {
                calc.Validate(formula);
                return true;
            }
            catch (SyntaxException)
            {
                return false;
            }
        }