ATMLCommonLibrary.controls.awb.DropListTreeForm.FindElement C# (CSharp) Метод

        public bool FindElement( XmlElement element )
        {
            bool found = false;
            foreach (TreeNode node in _treeView.Nodes)
            {
                found = FindNode( node, element );
                if (found)
                    break;
            }
            return found;
        }

        private void btnDown_Click(object sender, EventArgs e)
        {
            var pt = new Point(0, panel1.Height);

            if (_treeForm == null)
            {
                _treeForm                = new DropListTreeForm();
                _treeForm.TreeModel      = _treeModel;
                _treeForm.Location       = PointToScreen(pt);
                _treeForm.Width          = edtSelectedValue.Width + btnDown.Width;
                _treeForm.SignalSelect  += _treeForm_SignalSelect;
                _treeForm.TreeLostFocus += _treeForm_TreeLostFocus;
                if (!string.IsNullOrEmpty(edtSelectedValue.Text))
                {
                    _treeForm.FindElement((XmlElement)edtSelectedValue.Tag);
                }
                _treeForm.Show();
            }
            else
            {
                CloseTree();
            }
        }