Fire a simple longrunning task including visual progress. This example is meant for educational purposes, further description is to be found in source code comments in file Form1.cs
To view the Form1-Class in the ClassDiagram1.cd file in Visual Studio you need an extension which, for whatever reason, is not included in standard installations (at least in VS 2019). Please refer to: https://docs.microsoft.com/en-us/visualstudio/ide/class-designer/how-to-add-class-diagrams-to-projects?view=vs-2022