public override void DataBind()
{
base.DataBind();
ListControlUtil.AddExtendedListItemProperties(this);
ListControlUtil.InsertFixedItems(this);
ClearSelection();
}
protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
ListControlUtil.AddExtendedListItemProperties(this);
ListControlUtil.InsertFixedItems(this);
}