netcoreapp3.0 
namespace System.Windows.Forms.DataVisualization.Charting
{
    public enum ChartHatchStyle
    {
        ForwardDiagonal = 16
    }
}
.NET 5.06.07.08.09.010.0
.NET Core 3.03.1
.NET Framework 4.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to netcoreapp3.0
Assembly

System.Windows.Forms.DataVisualization , Version=1.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to System.Windows.Forms.DataVisualization.

Package System.Windows.Forms.DataVisualization (1.0.0-prerelease.20110.1) netcoreapp3.0
Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API