public Nullable<int> MarkerSize {get; set;}
This property provides a way to customize the marker size for an individual data point in the series.
A value of null implies that the marker size is not explicitly set on this data point, and should inherit the value from it's associated Series.
Use the Series.MarkerSize property to customize the size of all markers in the series.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+