'Declaration Public Property MarkerStyle As Nullable(Of MarkerStyle)
public Nullable<MarkerStyle> MarkerStyle {get; set;}
This property provides a way to customize the marker style for an individual data point in the series.
A value of null implies that the marker style is not explicitly set on this data point, and should inherit the value from it's associated Series.
Use the Series.MarkerStyle property to customize the style of all markers in the series.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2