private void SearchResult_ColumnClick(object sender , ColumnClickEventArgs e)
{
var sorter = m_lvSearchResult.ListViewItemSorter as IColumnSorter;
ColumnDataType_t dataType = (ColumnDataType_t)m_lvSearchResult.Columns[e.Column].Tag;
if (sorter == null)
{
sorter = GetColumnSorter(dataType);
sorter.ColumnIndex = e.Column;
m_lvSearchResult.ListViewItemSorter = sorter;
}
else if (sorter.ColumnIndex != e.Column)
{
m_lvSearchResult.SetColumnHeaderSortIcon(sorter.ColumnIndex , SortOrder.None);
sorter = GetColumnSorter(dataType);
sorter.ColumnIndex = e.Column;
sorter.SortDescending = false;
m_lvSearchResult.ListViewItemSorter = sorter;
}
else
sorter.SortDescending = !sorter.SortDescending;
m_lvSearchResult.Sort();
m_lvSearchResult.SetColumnHeaderSortIcon(e.Column , sorter.SortDescending ? SortOrder.Descending :
SortOrder.Ascending);
}
IColumnSorter GetColumnSorter(ColumnDataType_t dataType)
{
IColumnSorter sorter;
if (!m_colSorters.TryGetValue(dataType , out sorter))
{
switch (dataType)
{
case ColumnDataType_t.Text:
sorter = new TextColumnSorter();
break;
case ColumnDataType_t.Integer:
sorter = new IntegerColumnSorter();
break;
case ColumnDataType_t.Float:
sorter = new FloatColumnSorter();
break;
case ColumnDataType_t.Time:
sorter = new TimeColumnSorter();
break;
default:
Assert(false);
break;
}
m_colSorters[dataType] = sorter;
}
return sorter;
}