The Line graph or series is used to represent data as a two-dimensional line curve. It has two
components, Position and Value. The data in these two
components respectively specify the positions and values of the series
pieces. It also has an optional
component called LabelMember whose data may be used as the mark labels
for the series pieces.
Each pair of data in the two mandatory series components may be optionally
represented as a point on the line. The Points property determines the
appearance of the points on the line.
The LinePen property determines the appearance of the line.
If the Stairs property is set to true, the series will be rendered as
a stair-like line.