/// <summary>
    /// Comapres the items Parent List and then the Items Name
    /// Sort by List Name, then Name Field of Item
    /// </summary>
    public class SortBySPListandSPListItem : IComparer
    {
        /// <summary>
        /// Compare 
        /// </summary>
        /// <param name="obj1">Object to compare against</param>
        /// <param name="obj2">Object to compare</param>
        /// <returns>Less than zero, obj1 is less than obj2. Zero, obj1 equals obj2. Greater than zero, obj1 is greater than obj2.</returns>
        public int Compare(object obj1, object obj2)
        {
            SPListItem Source = null;
            SPListItem Dest = null;

            // Null Checking and casting as SPListItems
            #region Source
            if (obj1 != null)
            {
                if (obj1.GetType() == typeof(SPListItem))
                {
                    // its a list item, TICK!
                    Source = obj1 as SPListItem;
                }
            }
            #endregion

            #region Destination
            if (obj2 != null)
            {
                if (obj2.GetType() == typeof(SPListItem))
                {
                    // its a list item, TICK!
                    Dest = obj2 as SPListItem;
                }
            }
            #endregion

            // Hand it over to the strongly typed method
            return this.Compare(Source, Dest);
        }

        /// <summary>
        /// Compares two List Items based on List & ListItem["Name"]
        /// </summary>
        /// <param name="item1">The List Item to compare against</param>
        /// <param name="item2">A list item to comapre against item1</param>
        /// <returns>Less than zero, obj1 is less than obj2. Zero, obj1 equals obj2. Greater than zero, obj1 is greater than obj2.</returns>
        public int Compare(SPListItem item1, SPListItem item2)
        {
            // Check for null
            if ((item1 == null) || (item2 == null))
            {
                return -1;
            }
            
            int CompareResult = 0;

            // "Outer" Compare.. of the list name
            int SPListOuterCompareResult = item1.ParentList.Title.ToLower().CompareTo(item2.ParentList.Title.ToLower());

            // If we dont equal zero, return out
            if (SPListOuterCompareResult != 0)
            {
                CompareResult = SPListOuterCompareResult;
            }
            else
            {
                // for anything else, do the inner compare on the listitem
                int SPListItemInnerCompareResult = item1["Name"].ToString().ToLower().CompareTo(item2["Name"].ToString().ToLower());

                CompareResult = SPListItemInnerCompareResult;
            }

            // return the result
            return CompareResult;
        }

    }