C# Decimal.Parse issue with commas

Question

Here\'s my problem (for en-US):

Decimal.Parse(\"1,2,3,4\") returns 1234, instead of throwing an InvalidFormatException.

Most Windows application

Answer 1

It's allowing thousands, because the default NumberStyles value used by Decimal.Parse (NumberStyles.Number) includes NumberStyles.AllowThousands.

If you want to disallow the thousands separators, you can just remove that flag, like this:

Decimal.Parse("1,2,3,4", NumberStyles.Number ^ NumberStyles.AllowThousands)

(the above code will throw an InvalidFormatException, which is what you want, right?)