/// <summary>
/// Compare!
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public override int Compare(object x, object y)
{
string x1 = null;
if (col < ((ListViewItem)x).SubItems.Count)
x1 = ((ListViewItem)x).SubItems[col].Text;
string y1 = null;
if (col < ((ListViewItem)y).SubItems.Count)
y1 = ((ListViewItem)y).SubItems[col].Text;
if (comparer == null)
{
// Default is the StringComparer
ISortComparer c = new StringComparer();
c.SortOrder = sortorder;
return c.Compare(x1, y1);
}
else
{
comparer.SortOrder = sortorder;
return comparer.Compare(x1, y1);
}
}
/// <summary>
/// Sorts the ListView by the specified column.
/// </summary>
/// <param name="column"></param>
protected void Sort(int column)
{
// Toggle ASC and DESC
if (column == lastsortcolumn)
{
if (sortorder == SortOrder.Ascending)
sortorder = SortOrder.Descending;
else
sortorder = SortOrder.Ascending;
}
else
{
sortorder = SortOrder.Ascending;
}
lastsortcolumn = column;
// Get the columns comparer (if the column ist registered use the StringComparer by default)
ISortComparer c = null;
if (comparercollection.ContainsKey(this.ListView.Columns[column].Text))
c = comparercollection[this.ListView.Columns[column].Text];
else
c = new StringComparer();
// Initialize the ListViewItemComparer
ListViewItemComparer lvc = new ListViewItemComparer(column, c);
lvc.SortOrder = sortorder;
this.ListView.ListViewItemSorter = lvc;
// Sort!
this.ListView.Sort();
// Set ColumnHeaders image
SetImage(column, sortorder);
}