Steps to upgrade your project to .NET Standard library
Here are the steps required to upgrade your projects.
1. Uninstall .NET Framework wrapper from the your old project
2. Add Newtonsoft.Json v12 package from NuGet
3. Download library from NuGet. Choose Highsoft.Highcharts or Highsoft.Highstock package.
4. Add using directive to the view file
5. Remove the call to the GetHighcharts method
6. Create a Highcharts object with the following options
7. Assign the ID of the div render target using chartOptions.ID