Creates a new RSCharts.TRS2DChartValue instance and adds it to the Items array. Call Add to create a 2D value in the collection. The new value is placed at the end of the Items array, or, if the collection is Sorted, placed at the sorted point in the collection (based on a default value (0)).
Add returns the new 2D value.
Note that because every time you change a value an event is called, it is faster to add and initialize a value using the overloaded Add method.
The following example creates values in the collection: