Execute code after completing some operations

Hello,
i have this code, where I load 4 scriptable objects, and then each of these loads 1 sprite 1 material.
How can I understand when both the 4 SO and the other operation are completed?
Is there any way to concatenate these operations and execute a function after they have completed?

Code (CSharp):

1. m_AssetSharedData.CommonRarity.LoadAssetAsync().Completed += (op) =>
2. {
3.     op.Result.RaritySprite.LoadAssetAsync().Completed += (op2) => m_CommonRaritySprite = op2.Result;
4.     op.Result.RarityMaterial.LoadAssetAsync().Completed += (op2) => m_CommonRarityMaterial = op2.Result;
5. };
6.  
7. m_AssetSharedData.RareRarity.LoadAssetAsync().Completed += (op) =>
8. {
9.     op.Result.RaritySprite.LoadAssetAsync().Completed += (op2) => m_CommonRaritySprite = op2.Result;
10.     op.Result.RarityMaterial.LoadAssetAsync().Completed += (op2) => m_CommonRarityMaterial = op2.Result;
11. };
12.            
13. m_AssetSharedData.EpicRarity.LoadAssetAsync().Completed += (op) =>
14. {
15.     op.Result.RaritySprite.LoadAssetAsync().Completed += (op2) => m_CommonRaritySprite = op2.Result;
16.     op.Result.RarityMaterial.LoadAssetAsync().Completed += (op2) => m_CommonRarityMaterial = op2.Result;
17. };
18.            
19. m_AssetSharedData.LegendaryRarity.LoadAssetAsync().Completed += (op) =>
20. {
21.     op.Result.RaritySprite.LoadAssetAsync().Completed += (op2) => m_CommonRaritySprite = op2.Result;
22.     op.Result.RarityMaterial.LoadAssetAsync().Completed += (op2) => m_CommonRarityMaterial = op2.Result;
23. };

 

Using tasks, you can do it like this:

Code (CSharp):

1. async Task LoadSpritesAndMaterials()
2. {
3.     await Task.WhenAll(
4.         LoadSpriteAndMaterialFromRarity(m_AssetSharedData.CommonRarity),
5.         LoadSpriteAndMaterialFromRarity(m_AssetSharedData.RareRarity),
6.         LoadSpriteAndMaterialFromRarity(m_AssetSharedData.EpicRarity),
7.         LoadSpriteAndMaterialFromRarity(m_AssetSharedData.LegendaryRarity)
8.     );
9.  
10.     async Task LoadSpriteAndMaterialFromRarity(Rarity rarity)
11.     {
12.         var data = await rarity.LoadAssetAsync().Task;
13.  
14.         await Task.WhenAll(LoadSprite(data.RaritySprite), LoadMaterial(data.RarityMaterial));
15.  
16.         async Task LoadSprite(AssetReference spriteReference)
17.         {
18.             m_CommonRaritySprite = await spriteReference.LoadAssetAsync().Task;
19.         }
20.  
21.         async Task LoadMaterial(AssetReference materialReference)
22.         {
23.             m_CommonRarityMaterial = await materialReference.LoadAssetAsync().Task;
24.         }
25.     }
26. }

Then you can wait for that to complete and call your next code like this:

Code (CSharp):

1. await LoadSpritesAndMaterials();
2.  
3. // Your code here.

 

Thanks!
I used a slightly different method based on your code and it works perfectly.