Get GameObject from array with specific name with LINQ

Question

I wrote some code with foreach loop but it looks very ugly and I wanna translate it into LINQ version but i can't figure out how to do that (sorry, I am new to LINQ) and can someone tell me the LINQ way of my code which is given below?

        GameObject[] everything = Resources.FindObjectsOfTypeAll(
                                 typeof(GameObject)) as GameObject[];
        GameObject layoutContainer = new GameObject();

        foreach (GameObject obj in everything) {
            if(obj.name == "LayoutContainer") {
                layoutContainer = obj;
                break;
            }
        }

You looking for FirstOrDefault method. Something like layoutContainer = everything.FirstOrDefault(obj => obj.name == "LayoutContainer") — Aleks Andreev
– Aleks Andreev, Commented Jul 16, 2019 at 13:20

Matt Rowland · Accepted Answer · 2019-07-16 13:21:53Z

3

You can convert this to LINQ with the following code:

GameObject layoutContainer = everything.FirstOrDefault(obj => obj.name == "LayoutContainer") ?? new GameObject();

This grabs the first object with the name of "LayoutContainer". If there is no object with that name, it will assign it a new object. This is the same functionality that you have shown in your code example.

answered Jul 16, 2019 at 13:21

Matt Rowland

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3 Comments

VPavliashvili Over a year ago

Thanks for your answer. I have already tried this but in FirstOrDefault method i was using { } this action qurly braces and compiler was saying that "not all code path returns a value", now i understand, i just had to pass logic as parameter and not as an action

Matt Rowland Over a year ago

Your error came from the scoping curly braces. Leave those out and use the code as I wrote it and you should be all set.

VPavliashvili Over a year ago

Yes, I did that and now all is fine

happydaily · Accepted Answer · 2019-07-16 13:24:59Z

2

GameObject layoutContainer = (from game in everything
                                          where game.name == "LayoutContainer"
                                          select game).FirstOrDefault();

answered Jul 16, 2019 at 13:24

happydaily

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Comments

mm8 · Accepted Answer · 2019-07-16 13:26:23Z

1

Try this:

GameObject layoutContainer = (Resources.FindObjectsOfTypeAll(typeof(GameObject)) as GameObject[])?
   .FirstOrDefault(x => x.name == "LayoutContainer") ?? new GameObject();

answered Jul 16, 2019 at 13:26

mm8

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