How to zoom a chart programmatically?
You can zoom the chart programmatically using the ZoomFactor property of ChartAxis class. The function mulzoomcenter also can be used to zoom the chart by passing the zoomfactor value as parameter.
The following code is the example for zooming a chart using mulzoomcenter function.
C#
// To zoom in
Chart1.Areas[0].Axes[0].MulZoomCenter(0.5);
Chart1.Areas[0].Axes[1].MulZoomCenter(0.5);
//To Zoom out
Chart1.Areas[0].Axes[0].MulZoomCenter(2);
Chart1.Areas[0].Axes[1].MulZoomCenter(2);