private void SortGroups(string sort)
{
DataTable dt = allGroups.DataTable();
if (sort != string.Empty)
dt.DefaultView.Sort = sort;
allGroups = new GroupCollection();
foreach (DataRowView drv in dt.DefaultView)
{
Group group = new Group((int)drv["GroupID"]);
group.MatchScore = Convert.ToDecimal(drv["MatchScore"]);
allGroups.Add(group);
}
}