Generic List In Custom Editor Window

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Hi:

I am trying to make a custom editor window with a grneric list. the same as one in the inspector when you attach it on a gameobject.

  using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  
  using UnityEditor;
  
  [System.Serializable]
  public class Tile
  {
      public GameObject tile; //the tile prefab
      public Color tileColor; //the reffrence of color to instantiate prefab
  }
  
  
  public class LevelGenerator : EditorWindow
  {
  
      public List<Tile> tileList;
  
      [MenuItem("Window/My Editor/Level Generator")]
      public static void ShowWindow()
      {
          GetWindow<LevelGenerator>("Level Generator");
      }
  
      //window code
      void OnGUI()
      {
          tileList = EditorGUILayout.List<Tile>("Tile", tileList); //Having trouble with this part!!!
      }
  }

I am thinking it has to do with "propertyfields" but having trouble implementing it.

Thanks: James

Answer 1

Best Answer

Answer by jimjames · Dec 09, 2019 at 04:33 AM

I got this to work with placing this part of code in the area where i wanted the list to show up in the editor.

         //to show the list of tiles//
         ScriptableObject target = this;
         SerializedObject so = new SerializedObject(target);
         SerializedProperty stringsProperty = so.FindProperty("tileList");
 
         EditorGUILayout.PropertyField(stringsProperty, true);
         so.ApplyModifiedProperties();
         //end for the list of tiles

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DancingZombie · May 26, 2020 at 06:31 AM 0

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@jimjames Thanks for this as i am now able to see my list in the custom editor, the problem i am having is that the list is not editable from the editor, it is grayed out. Did you have this issue and do you have any solutions? alt text

capture.png (24.4 kB)

Answer 2

Answer by HyruleDefender · May 06 at 07:42 PM

I have been searching for a solution for this here in 2022

And I just replaced "tileList" with the name of myList Thank you, Thank you!

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unity_0DyuK5ODU55k4w · May 20 at 12:45 PM 0

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Hi, could you please show how you came to this? I can now view the list, but cannot assign anything to it in the editor window...

HyruleDefender unity_0DyuK5ODU55k4w · May 20 at 03:19 PM 0

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Sure, Id be happy to.

This is essentially what I have for the array of game objects (I tried to upload a screenshot of the tool, but Unity Answers is not letting me)

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEditor;
 
 
 public class MLET_Tool : EditorWindow
 {
 
  //model list
     [SerializeField]
     private List<GameObject> listModelGeo;
 
  //UI visuals
     public void OnGUI() // these should send information ON "spawn grid" for most, but "on change" for some (like rotation)
 {
 
  GUILayout.Label("Prefabs/Models", EditorStyles.boldLabel);
         //to show the list of geo
         ScriptableObject target = this;
         SerializedObject so = new SerializedObject(target);
         SerializedProperty stringsProperty = so.FindProperty("listModelGeo");
 }
 
 
 }

Generic List In Custom Editor Window

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