Hi, I think you should look around string.Foramt() methode which can have parameter like NumberFormatInfo MSDN Or, like this example, you can use the ToString() methode :
string NumberPrettyPrint(int number){
// Gets a NumberFormatInfo associated with the en-US culture.
NumberFormatInfo nfi = new CultureInfo( "en-US", false ).NumberFormat;
nfi.NumberDecimalDigits = 2;
return number.ToString("N", nfi);
}
Hope that can help