How to convert all of them to C# ?
Whenever I tried, it didn’t work. Please help me
welcome to this forum
what are the Rhinocommon / Rhino-Inside specify aspects of your question ?
is the great starting point.
If your question is a general phyton question without any link to the CAD-Software Rhino - this is maybe not the right forum.
you may also want to google for
“online code converter python to c#”
or point out the rhino–specific aspects of your question. in a few lines of quoted code that you post directly.
kind regards - tom
warning to others: the code might contain malware