Beispiel #1
0
        /// <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)
        {
            // Cast the objects to be compared to ListViewItem objects
            ListViewItem listviewX = (ListViewItem)x;
            ListViewItem listviewY = (ListViewItem)y;

            // Compare the two items
            int compareResult = ListViewItemSorter.Compare(listviewX, listviewY);

            switch (Order)
            {
            // Calculate correct return value based on object comparison
            case SortOrder.Ascending:
                // Ascending sort is selected, return normal result of compare operation
                return(compareResult);

            case SortOrder.Descending:
                // Descending sort is selected, return negative result of compare operation
                return(-compareResult);

            case SortOrder.None:
            default:
                // Return '0' to indicate they are equal
                return(0);
            }
        }
Beispiel #2
0
        /// <summary>
        /// Class constructor.  Initializes various elements
        /// </summary>
        public ListViewColumnSorter(ListViewItemSorter s)
        {
            // Initialize the column to '0'
            SortColumn = 0;

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

            // Initialize the CaseInsensitiveComparer object
            ListViewItemSorter = s;
        }