c# How to separate an int with decimal points?

Question

I am trying to format an int with decimal points as separators, not commas.

Example: 1234567890 should be formatted to 1.234.567.890

text_team1.text = em.team1Score.ToString("#,##0");

This will give 1,234,567,890

However in this topic there was some information about using the class CultureInfo which contains the format-style, so I used several of them:

text_team1.text = em.team1Score.ToString("#,##0", new System.Globalization.CultureInfo("IS-is"));

as an example. But it seems that every cultureInfo uses a comma as separator.

Even by editing the string afterwards, there is still the comma as seperator.

text_team1.text = em.team1Score.ToString("#,##0");
text_team1.text.Replace(',','.');

Answer 1

Even by editing the string afterwards, there is still the comma as seperator.

 text_team1.text = em.team1Score.ToString("#,##0"); text_team1.text.Replace(',','.'); 

You forgot to assign the replaced string back.

text_team1.text = text_team1.text.Replace(',','.');

EDIT :

If you still prefer a solution without using the Replace function, you can use the Extension method below. It works for strings and ints . Please Google and read about extension methods if you don't know how they work.

Create and place the ExtensionMethod script in any folder in your project :

using System.Globalization;
using System;

public static class ExtensionMethod
{
    public static string formatStringWithDot(this string stringToFormat)
    {
        string convertResult = "";
        int tempInt;
        if (Int32.TryParse(stringToFormat, out tempInt))
        {
            convertResult = tempInt.ToString("N0", new NumberFormatInfo()
            {
                NumberGroupSizes = new[] { 3 },
                NumberGroupSeparator = "."
            });
        }
        return convertResult;
    }

    public static string formatStringWithDot(this int intToFormat)
    {
        string convertResult = "";

        convertResult = intToFormat.ToString("N0", new NumberFormatInfo()
        {
            NumberGroupSizes = new[] { 3 },
            NumberGroupSeparator = "."
        });
        return convertResult;
    }
}

Usage :

string stringToFormat = "1234567890";
Debug.Log(stringToFormat.formatStringWithDot());

Or

int intToFormat = 1234567890;
Debug.Log(intToFormat.formatStringWithDot());

Or

string stringToFormat = "1234567890";
text_team1.text = stringToFormat.formatStringWithDot();

Use each one depending on which scenario you run into.

Answer 2

If you are using globalisation as a means to format your string, you could set a Custom Group Seperator

NumberFormatInfo nfi = new CultureInfo( "en-US", false ).NumberFormat;

// Displays the same value with a blank as the separator.
Int64 myInt = 1234567890;
nfi.NumberGroupSeparator = ".";
Console.WriteLine( myInt.ToString( "N0", nfi ) );

https://dotnetfiddle.net/vRqd6x

Answer 3

I prefer using string.Format() . Does your OS represent numbers with that format? If so, you can try with the simplest form

text_team1.text = string.Format("{0:N}", em.team1Score);

or you can force it with

text_team1.text = string.Format(CultureInfo.GetCultureInfo("IS-is"), "{0:N}", em.team1Score);

which cares of the culture.