Question

I’ve got a program that reads xml files. I already have a code that reads specific elements and places it in a variable. The only thing missing is comparing an element(a number) to a double variable, but elements are considered as string. All I have seen in Google is conversion of double to string. How do you convert a string to double?

EDIT:

I’ve got it now, I can’t answer my own question yet ‘coz I still have low reputation. This is what I’ve come so far and it works:

string stringNum = "2";
double value = double.Parse(stringNum);

Answer 1

var number = double.Parse("2.5", CultureInfo.InvariantCulture);

See Double.Parse at MSDN

And just as a heads-up, you will probably want to take a look at Parse(String, IFormatProvider), because parsing XML means you will have to look into the format of your “number strings”. It’s common practice to specify the CultureInfo when using ToString or Parse methods. Look here for more information.

When a CultureInfo or System.IFormatProvider object is not supplied,
the default value supplied by the overloaded member might not have the
effect that you want in all locales. Also, .NET Framework members
choose default culture and formatting based on assumptions that might
not be correct for your code. To ensure the code works as expected for
your scenarios, you should supply culture-specific information.