Cursors, Zooming, and Scrolling in Chart Controls
In the Chart control for Windows Forms, you can give the chart viewer the flexibility to zoom and scroll the data view by enabling cursors and selections. To do this, use the CursorX and CursorY properties (Cursor objects).
You can enable cursors, zooming, and scrolling for the X or Y axes, or both. To enable the cursor in the data view, set the IsUserEnabled property to True. To enable data view selection, set the IsUserSelectionEnabled property to True.
By default, zooming and scrolling are enabled when you enable data view selection. Use the ScaleView and ScrollBar properties in the chart area's X or Y axis to adjust the look and feel of the scroll bar when it is shown.