Assigning List with Points from one C# class into another C# class

Grasshopper Developer
1

Hi everyone,
I was doing the ICD-Course from 2017 today and tried to make some changes,where the problem occured.

I have a class relying on the standard Grasshopper template to harvest the values from Grasshopper and than pass them to another class.

Unbenannt
Unbenannt1337×749 76.2 KB

I am getting the Points read in correctly, but when I want to use them in the other class, the list comes in as null.
grafik
grafik1335×627 52.4 KB

I cant understand how to assing the List correctly?

Thanks in advance!

2

Hi Baris,

StartPts is not pointing to any valid address in memory, hence the null reference exception. If you initialize it within your constructor, the problem will be solved.

StartPts = new List<Point3d>();

3

Yes! Thanks again Nicholas!