Double to string with culture and only one decimal place

Question

I need to keep culture when converting double to string and also round to only one decimal place.

Converting double to string with culture:

((12275454.8).ToString("N", new CultureInfo("sl-SI")));

Gives output:

12.275.454,80

Converting double to string with only one decimal:

string.Format("{0:F1}",12275454.8)

Gives output:

12275454.8

The second output is without culture, the first output is not rounded to one decimal place. How to combine both methods?

Answer 1

Just use the format string of your second example in your first example, ie:

((12275454.8).ToString("N1", new CultureInfo("sl-SI")));

Edit: Changed format from F1 to N1 as per request. The difference between both is that N additionally uses thousands separators, whereas F does not. For details see https://msdn.microsoft.com/en-US/library/dwhawy9k(v=vs.110).aspx

Answer 2

You can set "sl-SI" culture as a default one:

 using System.Threading;

 ...

 Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo("sl-SI");

 string test = string.Format("{0:F1}",12275454.8);

Add try..finally if you want "sl-SI" culture for a block of code only:

var savedCulture = Thread.CurrentThread.CurrentCulture;

try {
  Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo("sl-SI");

  // Let's work with "sl-SI" for a while  
  string test = string.Format("{0:F1}",12275454.8);
  ...
}
finally {
  Thread.CurrentThread.CurrentCulture = savedCulture;
}