How to make building Strings from dates easy?

While the DateTime object might already have quite some standard formats for its ToString method, it's just not good enough to use directly in a front-end.

In some applications, outputting dates can become quite a recurring job. Because of this, I decided to write a little helper class. This helper can easily be extended later by overloading the Print method to support other objects than just DateTime.

using System;

namespace Helpers
{
    ///<summary>
    /// Helpers.PrintHelper
    ///</summary>
    public static class PrintHelper
    {
        ///<summary>
        /// Prints the specified date time.
        ///</summary>
        ///<param name="dateTime">The date time.</param>
        ///<returns></returns>
        public static String Print(DateTime dateTime)
        {
            return dateTime.ToString
                (
                    "dddd, '" +
                    AddOrdinal(dateTime.Day) +
                    " of' MMMM yyyy 'at' HH:mm:ss"
                );
        }

        ///<summary>
        /// Adds the ordinal.
        ///</summary>
        ///<param name="day">The day.</param>
        ///<returns></returns>
        private static string AddOrdinal(int day)
        {
            switch (day % 100)
            {
                case 11:
                case 12:
                case 13:
                    return day.ToString() + "th";
            }

            switch (day % 10)
            {
                case 1:
                    return day.ToString() + "st";
                case 2:
                    return day.ToString() + "nd";
                case 3:
                    return day.ToString() + "rd";
                default:
                    return day.ToString() + "th";
            }
        }
    }
}

You can then use it as following:

String date = Helpers.PrintHelper.Print(DateTime.Now);

The variable "date" will then contain the datetime, formatted beautifully, including ordinals.

8th of December 2010 at 14:46:00