Using JSON List to populate Shop Scroll List

Greetings,
This is my first post to the forums.
I am building a shop scrollList based on the Unity tutorial but I am incorporating a JSON file as a source for populating the buttons. I am running into errors when I attempt to use the list created from the JSONUtility.

Code (CSharp):

1. using
2. UnityEngine;
3. using System.Collections;
4. using UnityEngine.UI;
5. using System.Collections.Generic;
6.  
7. [System.Serializable]
8. public class Titles
9. {
10.     public string name;
11.     public string address;
12.     public string iapid;
13. }
14.  
15. public class ShopScrollList : MonoBehaviour
16. {
17.  
18.     public Transform contentPanel;
19.     public SimpleObjectPool buttonObjectPool;
20.     public List<Titles> TitlesList = new List<Titles>();
21.  
22.  
23.     // Use this for initialization
24.     void Start()
25.  
26.     {
27.         TextAsset asset = Resources.Load("Catalog") as TextAsset;
28.         if (asset != null)
29.         {
30.          
31.             titlesList = JsonUtility.FromJson<Titles>(asset.text);
32.         }
33.     {
34.         RefreshDisplay();
35.     }
36.  
37.     void RefreshDisplay()
38.     {
39.         RemoveButtons();
40.         AddButtons();
41.     }
42.  
43.     void RemoveButtons()
44.     {
45.         while (contentPanel.childCount > 0)
46.         {
47.             GameObject toRemove = transform.GetChild(0).gameObject;
48.             buttonObjectPool.ReturnObject(toRemove);
49.         }
50.     }
51.  
52.     void AddButtons()
53.     {
54.         for (int i = 0; i < titlesList.Count; i++)
55.         {
56.             Titles titles = titlesList[i];
57.             GameObject newButton = buttonObjectPool.GetObject();
58.             newButton.transform.SetParent(contentPanel);
59.  
60.             SampleButton sampleButton = newButton.GetComponent<SampleButton>();
61.             sampleButton.Setup(titles, this);
62.         }
63.     }
64. }

I get the following errors:
Lines 29, 52, and 54 'The name 'titles.List does not exist win the current context'.
When I try to fix this by making a new instance of the list, I then get an error on the List.Count stating that there is no definition for Count.

Below are the other two scripts in the project.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class SampleButton : MonoBehaviour
7. {
8.     public Button button;
9.     public Text name;
10.    
11.  
12. }
13.  

Code (CSharp):

1. using UnityEngine;
2. using System.Collections.Generic;
3.  
4. // A very simple object pooling class
5. public class SimpleObjectPool : MonoBehaviour
6. {
7.     // the prefab that this object pool returns instances of
8.     public GameObject prefab;
9.     // collection of currently inactive instances of the prefab
10.     private Stack<GameObject> inactiveInstances = new Stack<GameObject>();
11.  
12.     // Returns an instance of the prefab
13.     public GameObject GetObject()
14.     {
15.         GameObject spawnedGameObject;
16.  
17.         // if there is an inactive instance of the prefab ready to return, return that
18.         if (inactiveInstances.Count > 0)
19.         {
20.             // remove the instance from the collection of inactive instances
21.             spawnedGameObject = inactiveInstances.Pop();
22.         }
23.         // otherwise, create a new instance
24.         else
25.         {
26.             spawnedGameObject = (GameObject)GameObject.Instantiate(prefab);
27.  
28.             // add the PooledObject component to the prefab so we know it came from this pool
29.             PooledObject pooledObject = spawnedGameObject.AddComponent<PooledObject>();
30.             pooledObject.pool = this;
31.         }
32.  
33.         // put the instance in the root of the scene and enable it
34.         spawnedGameObject.transform.SetParent(null);
35.         spawnedGameObject.SetActive(true);
36.  
37.         // return a reference to the instance
38.         return spawnedGameObject;
39.     }
40.  
41.     // Return an instance of the prefab to the pool
42.     public void ReturnObject(GameObject toReturn)
43.     {
44.         PooledObject pooledObject = toReturn.GetComponent<PooledObject>();
45.  
46.         // if the instance came from this pool, return it to the pool
47.         if (pooledObject != null && pooledObject.pool == this)
48.         {
49.             // make the instance a child of this and disable it
50.             toReturn.transform.SetParent(transform);
51.             toReturn.SetActive(false);
52.  
53.             // add the instance to the collection of inactive instances
54.             inactiveInstances.Push(toReturn);
55.         }
56.         // otherwise, just destroy it
57.         else
58.         {
59.             Debug.LogWarning(toReturn.name + " was returned to a pool it wasn't spawned from! Destroying.");
60.             Destroy(toReturn);
61.         }
62.     }
63. }
64.  
65. // a component that simply identifies the pool that a GameObject came from
66. public class PooledObject : MonoBehaviour
67. {
68.     public SimpleObjectPool pool;
69. }
70.  

Any help would be greatly appreciated. I've been working it every which way for over a week. Thank you

 

C# is case sensitive. You define TitlesList and are using titlesList in your methods.

 

Thank you for the fast reply. I'll clean this up and see what errors it throws from there.
Awesome....

 

I cleaned up the case issues in the code and most of the errors are gone.
I have one issue left with the JSONUtility at line 30. It gives the following error:
Assets/ShopScrollList.cs(30,26): error CS0029: Cannot implicitly convert type 'Titles' to 'System.Collections.Generic.List<Titles>'
Here is the entire script:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using UnityEngine.UI;
4. using System.Collections.Generic;
5.  
6. [System.Serializable]
7. public class Titles
8. {
9.     public string name;
10.     public string address;
11.     public string iapid;
12. }
13.  
14. public class ShopScrollList : MonoBehaviour
15. {
16.  
17.     public Transform contentPanel;
18.     public SimpleObjectPool buttonObjectPool;
19.     public List<Titles> TitlesList = new List<Titles>();
20.  
21.  
22.     // Use this for initialization
23.     void Start()
24.  
25.     {
26.         TextAsset asset = Resources.Load("Catalog") as TextAsset;
27.         if (asset != null)
28.         {
29.          
30.             TitlesList = JsonUtility.FromJson<Titles>(asset.text);
31.         }
32.     {
33.         RefreshDisplay();
34.     }
35.  
36.     void RefreshDisplay()
37.     {
38.         RemoveButtons();
39.         AddButtons();
40.     }
41.  
42.     void RemoveButtons()
43.     {
44.         while (contentPanel.childCount > 0)
45.         {
46.             GameObject toRemove = transform.GetChild(0).gameObject;
47.             buttonObjectPool.ReturnObject(toRemove);
48.         }
49.     }
50.  
51.     void AddButtons()
52.     {
53.         for (int i = 0; i < TitlesList.Count; i++)
54.         {
55.             Titles titles = TitlesList[i];
56.             GameObject newButton = buttonObjectPool.GetObject();
57.             newButton.transform.SetParent(contentPanel);
58.  
59.             SampleButton sampleButton = newButton.GetComponent<SampleButton>();
60.             sampleButton.Setup(titles, this);
61.         }
62.     }
63. }
64. }

 

TitlesList is of type List<Titles>

So it wants you to assign it that type
"Cannot implicitly convert type 'Titles' to 'System.Collections.Generic.List<Titles>"

Code (CSharp):

1. TitlesList = JsonUtility.FromJson<List<Titles>>(asset.text);

 

Thank you. I tried so many times to get this right, looked on references and videos, etc. Now I get it. Can't thank you enough.