private void FilterClicked(object sender, System.EventArgs e)
{
ToolStripMenuItem menuItem = (ToolStripMenuItem)sender;
string key = (string)menuItem.Tag;
m_filterSettings.Set(key, !m_filterSettings.IsSet(key));
menuItem.Checked = m_filterSettings.IsSet(key);
if (FiltersUpdated != null)
{
FiltersUpdated();
}
}