Managing Microsoft Team Foundation Version Control (TFVC) using "Team Foundation Sidekicks"

using System.Collections;
using System.Windows.Forms;
using Microsoft.TeamFoundation.VersionControl.Client;

namespace MySidekick
{
    public class ListViewColumnSorter : IComparer
    {
        /// <summary>
        /// Specifies the column to be sorted
        /// </summary>
        private int columnToSort;
        /// <summary>
        /// Specifies the order in which to sort (i.e. 'Ascending').
        /// </summary>
        private SortOrder orderOfSort;
        /// <summary>
        /// Case insensitive comparer object
        /// </summary>
        private readonly CaseInsensitiveComparer objectCompare;

        /// <summary>
        /// Class constructor.  Initializes various elements
        /// </summary>
        public ListViewColumnSorter()
        {
            // Initialize the column to '0'
            columnToSort = 0;

            // Initialize the sort order to 'none'
            orderOfSort = SortOrder.None;

            // Initialize the CaseInsensitiveComparer object
            objectCompare = new CaseInsensitiveComparer();
        }

        /// <summary>
        /// This method is inherited from the IComparer interface.  It compares the two objects passed using a case insensitive comparison.
        /// </summary>
        /// <param name="x">First object to be compared</param>
        /// <param name="y">Second object to be compared</param>
        /// <returns>The result of the comparison. "0" if equal, negative if 'x' is less than 'y' and positive if 'x' is greater than 'y'</returns>
        public int Compare(object x, object y)
        {
            int compareResult;

            // Cast the objects to be compared to ListViewItem objects
            var listviewX = (ListViewItem)x;
            var listviewY = (ListViewItem)y;

            // Compare the two items
            if (columnToSort == 4)
                compareResult = objectCompare.Compare(((Item)listviewX.Tag).ContentLength, ((Item)listviewY.Tag).ContentLength);
            else
                compareResult = objectCompare.Compare(listviewX.SubItems[columnToSort].Text, listviewY.SubItems[columnToSort].Text);

            // Calculate correct return value based on object comparison
            if (orderOfSort == SortOrder.Ascending)
            {
                // Ascending sort is selected, return normal result of compare operation
                return compareResult;
            }
            if (orderOfSort == SortOrder.Descending)
            {
                // Descending sort is selected, return negative result of compare operation
                return (-compareResult);
            }
            // Return '0' to indicate they are equal
            return 0;
        }

        /// <summary>
        /// Gets or sets the number of the column to which to apply the sorting operation (Defaults to '0').
        /// </summary>
        public int SortColumn
        {
            set
            {
                columnToSort = value;
            }
            get
            {
                return columnToSort;
            }
        }

        /// <summary>
        /// Gets or sets the order of sorting to apply (for example, 'Ascending' or 'Descending').
        /// </summary>
        public SortOrder Order
        {
            set
            {
                orderOfSort = value;
            }
            get
            {
                return orderOfSort;
            }
        }

    }

}