#region License Information /* HeuristicLab * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections; using System.Windows.Forms; namespace HeuristicLab.Clients.Hive.JobManager { /// /// Comparer for sorting items in a list view by date /// See: http://msdn.microsoft.com/en-us/library/ms996467.aspx /// public class ListViewItemDateComparer : IComparer { private int col; public SortOrder Order { get; set; } public ListViewItemDateComparer() { col = 0; Order = SortOrder.Ascending; } public ListViewItemDateComparer(int column, SortOrder order) { col = column; Order = order; } public int Compare(object x, object y) { int returnVal; bool result; DateTime firstDate, secondDate; ListViewItem listViewItemX, listViewItemY; listViewItemX = x as ListViewItem; listViewItemY = y as ListViewItem; if (listViewItemX == null || listViewItemY == null) { throw new ArgumentException(string.Format("The ListViewItemDateComparer expects ListViewItems but received {0} and {1}.", x.GetType().ToString(), y.GetType().ToString())); } result = DateTime.TryParse(listViewItemX.SubItems[col].Text, out firstDate); result = DateTime.TryParse(listViewItemY.SubItems[col].Text, out secondDate) && result; if (result) { returnVal = DateTime.Compare(firstDate, secondDate); } else { throw new ArgumentException(string.Format("The ListViewItemDateComparer expects DateTimes. Can't parse {0} and {1}.", listViewItemX.SubItems[col].Text, listViewItemY.SubItems[col].Text)); } if (Order == SortOrder.Descending) { // invert the value returned by Compare. returnVal *= -1; } return returnVal; } } }