Best way to convert string to decimal separator “.” and “,” insensitive way?

Question

Application deals with strings that represent decimals that come from different cultures. For example \"1.1 and \"1,1\" is the same value.

I played with Deci

Answer 1

nice, still it's not 100% correct. when you use the case 1: you automatically suppose, that ',' stands for decimal digit. you should at least check if it occures more than once, cause in that case its a group separating symbol

            case 1:
                var firstPunctuation = linq.ElementAt(0);
                var firstPunctuationOccurence = value.Where(x => x == firstPunctuation).Count();

                if (firstPunctuationOccurence == 1)
                {
                    // we assume it's a decimal separator (and not a group separator)
                    value = value.Replace(firstPunctuation.ToString(), format.NumberDecimalSeparator);
                }
                else
                {
                    // multiple occurence means that symbol is a group separator
                    value = value.Replace(firstPunctuation.ToString(), format.NumberGroupSeparator);
                }

                break;