Join lines into polyline

I’ve been trying to join lines into polylines with dynamo but I haven’t succeeded, does anyone know how to do this?

What have you tried so far? What do your curves look like? What errors have you gotten (if any)? If you’re having issues you’re going to need to show us what you’re dealing with.

How to get help on the Dynamo forums - FAQ - Dynamo (dynamobim.com)

I have these lines drawn by points and i need to transform them into a single polyline. how would i do this with dynamo?
I tried the polyline.byPoints command but I really wanted to join these existing lines, without using polyline.byPoints


Look into the constructors (the nodes with a green + or green line next to them) in thr PolyLine section of the Civil3D Toolkit package.