c＃double.parse（）总是使用a。 期间不是逗号

Question

How can I specify that my decimal.Parse must always expect to receive a string with a '.' like "4.75" no mater what the system settings of the computer are?

I am reading in a file from excel and it gives me value with a '.' and I see that if I run my program on my laptop It throws and error as it expects a ','

I can use:

string tmp1 = tmp[2].Replace('.', ',');

but then obviously if my computer wants a ''. then it will give an error.

What is my best option?

Answer 1

See: Double.Parse

Use this overload to specify an IFormatProvider in your case CultureInfo.InvariantCulture .

var value = double.Parse(tmp[2], CultureInfo.InvariantCulture);

However I would recommend Double.TryParse if you intend to make your process durable.

double value;

if(!double.TryParse(tmp[2],
   NumberStyles.None,
   CultureInfo.InvariantCulture,
   out value))
{
    // error handling
}

Answer 2

使用Double.Parse Method (String, IFormatProvider)和CultureInfo.InvariantCulture进行解析。

double d = double.Parse("2.2", CultureInfo.InvariantCulture);

Answer 3

您可以使用Decimal.Parse的重载，它允许您指定文化：

decimal value = decimal.Parse(tmp[2], CultureInfo.InvariantCulture);