Sorting 2D string list in C#

/*
 * In application code
 */
// Declare a variable for data
public static List recordList = new List(); 

// Set a list
// For example,
//    2/11/2009, apple, 20
//    2/10/2009, banana, 5
//    1/30/2009, pineapple, 3
recodeList.Add(new clsDataRecord(DateTimeVar1, TextVar1, IntVar1));
recodeList.Add(new clsDataRecord(DateTimeVar2, TextVar2, IntVar2));
recodeList.Add(new clsDataRecord(DateTimeVar3, TextVar3, IntVar3));

// Call sorting by date
clsDataRecord.CompType = clsDataRecord.ComparisonType.Date;
Program.altRecordList.Sort();
// Sorted result will be
//    1/30/2009, pineapple, 3
//    2/10/2009, banana, 5
//    2/11/2009, apple, 20

// Call sorting by text
clsDataRecord.CompType = clsDataRecord.ComparisonType.Text;
Program.altRecordList.Sort();
// Sorted result will be
//    2/11/2009, apple, 20
//    2/10/2009, banana, 5
//    1/30/2009, pineapple, 3

// Call sorting by number
clsDataRecord.CompType = clsDataRecord.ComparisonType.Number;
Program.altRecordList.Sort();
// Sorted result will be
//    1/30/2009, pineapple, 3
//    2/10/2009, banana, 5
//    2/11/2009, apple, 20



/*
 * Class for clsDataRecord
 */
using System;
using System.Collections;

class clsDataRecord : IComparable
{
    public enum ComparisonType
    {
        Date = 1,
        Text = 2,
        Number = 3
    };

    // This class has three different members.
    // You can customize these with your own data.
    private DateTime _date;
    private string   _text;
    private int      _number;

    private static ComparisonType _compType;

    public clsDataRecord(DateTime date, string text, int number)
    {
        _date = date;
        _text = text;
        _number = number;
    }

    public DateTime Date
    {
        get { return _date; }
        set { _date = value; }
    }

    public string Text
    {
        get { return _text; }
        set { _text = value; }
    }

    public int Number
    {
        get { return _number; }
        set { _number = value; }
    }

    public static ComparisonType CompType
    {
        get { return _compType; }
        set { _compType = value; }
    }

    public override string ToString()
    {
        return String.Format("{0} - {1} - {2}", _date.ToShortDateString(), _text, _number.ToString());
    }

    public int CompareTo(object obj)
    {
        if (obj is clsDataRecord)
        {
            clsDataRecord r2 = (clsDataRecord)obj;

            switch (_compType)
            {
                case ComparisonType.Date:
                    return _date.CompareTo(r2.Date);
                case ComparisonType.Text:
                    return _text.CompareTo(r2.Text);
                case ComparisonType.Number:
                default:
                    return _number.CompareTo(r2.Number);
            }
        }
        else
            throw new ArgumentException("Object is not an clsDataRecord.");
    }
}