How to set default CultureInfo for float.Parse?-CodePudding

My current CultureInfo is "CultureInfo("de-DE")" (by default setting), when I parse a str, it would be non-english result.

So could I set InvariantCulture default globally(init)?

        System.Threading.Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
        CultureInfo.DefaultThreadCurrentCulture = CultureInfo.InvariantCulture;
        // new CultureInfo("de-DE")
        Debug.Log(float.Parse("0.11")); // 11

CodePudding user response：

The parser must know which decimal separator should be used. Normally the CultureInfo.InvariantCulture should use a . but..

You could pass an English culture as argument:

Debug.Log(float.Parse("0.11", new CultureInfo("en-US")); // 0.11

This won't affect the rest of the program.

CodePudding user response：

Yes, you can do that, but I would not recommend it. It will confuse users, when they expect to enter numbers in their native format (using a "," as decimal separator for the german culture).

Instead of globally setting the culture to invariant, you should always use the overloads to Parse that take a culture as argument, explicitly specifying whether at this particular location you expect local input (the data typically comes from the UI) or invariant input (the data comes from a file or database). If you get used to this, you'll avoid a lot of culture-dependent errors.

The same applies for the related methods ToString() and TryParse().