//!定位滚动条位置
private void AdvTree_Item_Click(object sender, EventArgs e)
{
RefreshAdvTree();
DevComponents.AdvTree.Node vSelNode = AdvTree_Item.Nodes[AdvTree_Item.Nodes.Count - 1];
AdvTree_Item.SelectNode(vSelNode, DevComponents.AdvTree.eTreeAction.Code);
vSelNode.EnsureVisible();
}