private void TreeList1_FocusedNodeChanged(object sender, DevExpress.XtraTreeList.FocusedNodeChangedEventArgs e)
{
if (e.Node.ParentNode == null)
{
RefreshMember();
}
else
{
string level = e.Node.GetValue(0).ToString();
DataTable dt = SelectDao.GetMemberGroupByLevel(level);
this.gridControl1.DataSource = dt;
this.gridControl1.RefreshDataSource();
}
}
