WPFChartViewer.ZoomDirection

`[C#]`	`public WinChartDirection ZoomDirection {get; set;};`
`[VB]`	`Public Property ZoomDirection As WinChartDirection`

Gets or sets the zoom direction for mouse zoom in/out actions.

In zoom operations for charts, it is common to restrict zooming to one direction only. For example, in a chart plotting temperature against time, zooming in from a yearly chart to a daily chart may mean the time axis (x-axis) is zoomed in by 36500%, while the temperature axis (y-axis) may be auto-scaled and not zoomed in at all. The user may be surprise if you also zoom in the y-axis by 36500%, in which case the chart may become hardly readable.

This method allows you to determine the zoom direction for mouse zoom actions (see WPFChartViewer.MouseUsage), specified using the following predefined constants:

Constant	Value	Description
WinChartDirection.Horizontal	0	Zoom actions apply to horizontal direction only.
WinChartDirection.Vertical	1	Zoom actions apply to vertical direction only.
WinChartDirection.HorizontalVertical	2	Zoom actions apply to both horizontal and vertical directions.