FolderItemSorter.cs :  » GUI » TreeViewAdv » SampleApp » C# / CSharp Open Source

using System;
using System.Collections;
using System.Windows.Forms;

namespace SampleApp{
  public class FolderItemSorter : IComparer
  {
    private string _mode;
    private SortOrder _order;

    public FolderItemSorter(string mode, SortOrder order)
    {
      _mode = mode;
      _order = order;
    }

    public int Compare(object x, object y)
    {
      BaseItem a = x as BaseItem;
      BaseItem b = y as BaseItem;
      int res = 0;

      if (_mode == "Date")
        res = DateTime.Compare(a.Date, b.Date);
      else if (_mode == "Size")
      {
        if (a.Size < b.Size)
          res = -1;
        else if (a.Size > b.Size)
          res = 1;
      }
      else
        res = string.Compare(a.Name, b.Name);

      if (_order == SortOrder.Ascending)
        return -res;
      else
        return res;
    }

    private string GetData(object x)
    {
      return (x as BaseItem).Name;
    }
  }
}