/// <summary>
        /// Handles the corresponding event.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="MapDrawFilterHelperCollectionRenameEventArgs"/> instance containing the event data.</param>
        void _collection_Renamed(MapDrawFilterHelperCollection sender, MapDrawFilterHelperCollectionRenameEventArgs e)
        {
            var index = lstItems.Items.IndexOf(e.Filter);

            if (index >= 0)
            {
                lstItems.RefreshItemAt(index);
            }
        }
 /// <summary>
 /// Handles the corresponding event.
 /// </summary>
 /// <param name="sender">The source of the event.</param>
 /// <param name="e">The <see cref="MapDrawFilterHelperCollectionRenameEventArgs"/> instance containing the event data.</param>
 void _collection_Renamed(MapDrawFilterHelperCollection sender, MapDrawFilterHelperCollectionRenameEventArgs e)
 {
     var index = lstItems.Items.IndexOf(e.Filter);
     if (index >= 0)
         lstItems.RefreshItemAt(index);
 }