C# Partial Class Usecases, Why/When to use it? [duplicate]

This question already has an answer here:

• When is it appropriate to use C# partial classes? 21 answers

The partial class primary purpose I see is being able to split a class in many files. But what I am not able to visualize is what benefit would that do?

I would be really happy to see some comments and links to any articles.

Are there any implications in the design patterns, or any technical benefit of using it?