Question

I need to format a number with a specific format. I don’t want to decide on the format with the regional settings of the computer so I’m trying:

string s = "219171"
string result = Convert.ToDouble(s).ToString("0,0.0") //219,171.0
string result = Convert.ToDouble(s).ToString("0.0,0") //219171.00

I want to display it as

219.171,00

Thank you

Answer 1

Create a custom NumberFormatInfo instance and pass that in when calling ToString().

NumberFormatInfo nfi = new NumberFormatInfo();
nfi.NumberGroupSeparator = ".";
nfi.NumberDecimalSeparator = ",";

double s = 219171;
string result = s.ToString("N2", nfi);

NumberFormatInfo belongs to System.Globalization