C＃时间格式。本地化为法语如何获得输出＆ldquo; 5h 45＆rdquo; 5:45？

using System;
using System.Globalization;

namespace ConsoleApplication1
{
    public class Program
    {
        static void Main(string[] args)
        {
            // FR Canadian
            Console.WriteLine("Displaying for: fr-CA");
            DisplayDatesForCulture("fr-CA");

            Console.WriteLine();
            Console.WriteLine();
            Console.WriteLine();

            // FR French
            Console.WriteLine("Displaying for: fr-FR");
            DisplayDatesForCulture("fr-FR"); 

            Console.WriteLine();
            Console.WriteLine("Press enter to exit.");
            Console.ReadLine();
        }

        static void DisplayDatesForCulture(string culture)
        {
            var ci = CultureInfo.GetCultureInfo(culture);
            var dt = new DateTime(2010, 10, 8, 18, 0, 0);

            foreach (string s in ci.DateTimeFormat.GetAllDateTimePatterns())
                Console.WriteLine(dt.ToString(s));
        }
    }
}

public static class DateHelper
{
    public static string ToLocalizedLongTimeString(this DateTime target)
    {
        return ToLocalizedLongTimeString(target, CultureInfo.CurrentCulture);
    }

    public static string ToLocalizedLongTimeString(this DateTime target, 
        CultureInfo ci)
    {
        // I'm only looking for fr-CA because the OP mentioned this 
        // is specific to fr-CA situations...
        if (ci.Name == "fr-CA")
        {
            if (target.Minute == 0)
            {
                return target.ToString("H' h'");
            }
            else
            {
                return target.ToString("H' h 'mm");
            }
        }
        else
        {
            return target.ToLongTimeString();
        }
    }
}

var dt = new DateTime(2010, 10, 8, 18, 0, 0);

// this line will return 18 h
Console.WriteLine(dt.ToLocalizedLongTimeString(CultureInfo.GetCultureInfo("fr-CA")));

// this line returns 6:00:00 PM
Console.WriteLine(dt.ToLocalizedLongTimeString());

var dt2 = new DateTime(2010, 10, 8, 18, 45, 0);

// this line will return 18 h 45
Console.WriteLine(dt2.ToLocalizedLongTimeString(CultureInfo.GetCultureInfo("fr-CA")));

// this line returns 6:45:00 PM
Console.WriteLine(dt2.ToLocalizedLongTimeString());

public static string ToCanadianTimeString(this DateTime source)
{
    if (source == null)
        throw new ArgumentNullException("source");

    if (source.Minute > 0)
        return String.Format("{0:hh} h {0:mm}", source);

    else
        return String.Format("{0:hh} h", source);
}

if (Locality == france)
myDateTime.ToString(Resources.Strings.CustomTimeFormat).Replace("00","") ;
else 
myDateTime.ToString(Resources.Strings.CustomTimeFormat);

public static string ToStringOverride(this DateTime dateTime, string format)
{
    // Adjust the "format" as per unique Culture rules not supported by the Framework
    if (CultureInfo.CurrentCulture.LCID == 3084) // 3084 is LCID for fr-ca
    {
        // French Canadians do NOT show 00 for minutes.  ie.  8:00 is shown as "8 h" not "8 h 00"
        if (dateTime.Minute == 0)
        {
            format = format.Replace("mm", string.Empty);
        }
    }

    return dateTime.ToString(format);
}

myDateTime.ToString(myDateTime.Minute == 0 ? @"H h" : @"H h mm")