Iterate through object fields

Question

I'm making an in game editor for my buildings, and I need to iterate through the building class's fields to instanciate fields to edit each property.

The fields are prefab, my buildings class has a number of fields that can vary in the future, and I'd like to make an editor that instanciates one inputField for each field I can edit.

How can I iterate through all fields ? I tried something like :

 foreach (var thisVar in building.GetType().GetProperties())
         {
             Debug.Log("Var Name : " + thisVar.Name + 
                       " ; Type : " + thisVar.PropertyType + 
                       " ; Value : " + thisVar.GetValue(building, null));
         }

but nothing appears in the console (and I am absolutely not sure about the usage of getValue()).

Can anyone give a hand ? :D

EDIT: Thanks to @Kciwsolb, I now know the code loops through attributes, and I have none. I like the idea of Scriptable Objects, but it doesn't solve the fact that I don't know the number of fields I might have in the future...

Answer 1

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Answer by Kciwsolb · Jun 04, 2018 at 01:16 PM

It is possible you do not have any properties in your class. Are you sure you have properties and not just public fields? I have seen people confuse the terms so it is worth asking. A property is a special method for accessing private fields. Here is an example:

 //This is a private field:
 private string name;
 
 //This is a property:
 public string Name
 {
       get{ return name;  }
       set{ name = value; }
 }
 
 //This is just a public field:
 public string alternateName;

Just making sure. If for some reason you were not using properties, here is the documentation on them.

Otherwise try just doing a Debug.Log(thisVar.ToString()); in your loop to see if it is working.

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Saryk360 · Jun 04, 2018 at 09:11 PM 0

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Indeed I'm using fields, because I serialize the class to json so they need to be public fields. I'll edit the question to use proper vocabulary.

ShadyProductions Saryk360 · Jun 04, 2018 at 09:12 PM 0

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Just use GetFields() ins$$anonymous$$d of GetProperties then.

Saryk360 ShadyProductions · Jun 04, 2018 at 10:53 PM 1

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Works like a charm, thank you very much !

Iterate through object fields

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