'Declaration Public Property Border As ChartBorder
public ChartBorder Border {get; set;}
For series which support fills, this property controls the color and size of the line drawn around the fill region.
For line-based series, use the Line property.
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