Code

var table = diagram.Factory.CreateTableNode(0, 0, 40, 80, 4, 100);
for (int i = 0; i < table.RowCount; i++)
	table[0, i].Text = i.ToString();

var scrollbar = new VScrollBar();

var rect = table.Bounds;
rect.Width = diagramView.ClientToDoc(scrollbar.ClientRectangle).Width;
rect.X = table.Bounds.Right - rect.Width;

var scrollbarNode = new ControlNode(diagramView, scrollbar);
scrollbarNode.ControlPadding = 0;
scrollbarNode.Bounds = rect;
diagram.Nodes.Add(scrollbarNode);

scrollbarNode.AttachTo(table, GroupAnchorStyles.Right |
	GroupAnchorStyles.Top | GroupAnchorStyles.Bottom);

scrollbar.Maximum = table.RowCount;
scrollbar.ValueChanged += (s, args) => table.CurrentScrollRow = scrollbar.Value;