How can I hide all the elements inside of a canvas?

Question

I need to $$anonymous$$de the current scene contents when the user clicks a button. The button will open another scene.

My code:

 public class OpenCredits : MonoBehaviour
 {
     public void OpenCreditScene()
     {
         SceneManager.LoadScene("Credits", LoadSceneMode.Additive);
         MainMenu.SetActive(false);  // T$$anonymous$$s is not working. MainMenu is the canvas and has some buttons and TextMeshPro objects in it.
     }
 }

Thanks.

Answer 1

@MichaelA1337 Here is my "Pause Game Menu" script. Is quite long, but I hope it helps! In my Canvas I have created an EMPTY OBJECT and named it "PauseGameMenu". I have attached t$$anonymous$$s script to it. I build all my inner menu panels as c$$anonymous$$ldren of the empty-pausegamemenu object. Here's my script:

 using UnityEngine;
 using UnityEngine.SceneManagement;
 
 public class PauseGameMenu : MonoBehaviour
 {
     [Header("Main Game Music")]
     public AudioSource mainGameMusic;
     [Header("Pause Menu Music")]
     public AudioSource pauseMenuMusic;
     [Header("ButtonPressSound")]
     public AudioSource pressButtonSound;
     [Header("Is the PauseGameMenu Open?")]
     public bool pauseGameMenu = false;
     [Header("PauseGameMenu in Canvas")]
     public GameObject pauseMenu;
     [Header("Turn OFF the Player")]
     public GameObject thePlayer;
     [Header("Player Name Display Off")]
     public GameObject playerNameDisplay;
     [Header("Turn OFF Save Position")]
     public GameObject savePositionButton;
     [Header("Turn OFF Load Position")]
     public GameObject loadPositionButton;
     [Header("Items Panel in Canvas")]
     public GameObject itemPanel;
     [Header("House Items Panel in Canvas")]
     public GameObject itemHousePanel;
     [Header("Pet Items Panel in Canvas")]
     public GameObject itemPetPanel;
     [Header("Player Items Panel in Canvas")]
     public GameObject itemPlayerPanel;
     [Header("Current Quests Panel in Canvas")]
     public GameObject currentQuestsPanel;
     [Header("All Quests Panel in Canvas")]
     public GameObject allQuestsPanel;
     [Header("Q001 Info Button in Canvas")]
     public GameObject Q001PickFlowerSwordButton;
     [Header("Q002 Info Panel in Canvas")]
     public GameObject Q002KillTheSpidersButton;
     [Header("Q003 Info Panel in Canvas")]
     public GameObject Q003CatchHurtButterflyButton;
     [Header("Q001 Info Panel in Canvas")]
     public GameObject Q001InfoPanel;
     [Header("Q002 Info Panel in Canvas")]
     public GameObject Q002InfoPanel;
     [Header("Q003 Info Panel in Canvas")]
     public GameObject Q003InfoPanel;
     [Header("Stats Panel in Canvas")]
     public GameObject statPanel;
 
 
     // Update is called once per frame
     void Update()
     {
         if (Input.GetButtonDown("Cancel"))
         {
             if (pauseGameMenu == false)
             {
                 pressButtonSound.Play();
                 pauseMenuMusic.Play();
                 mainGameMusic.Pause();
                 Time.timeScale = 0;
                 pauseGameMenu = true;
                 Cursor.visible = true;
                 pauseMenu.SetActive(true);
                 thePlayer.GetComponent<CubeMovement>().enabled = false;
                 playerNameDisplay.SetActive(false);
                 savePositionButton.SetActive(false);
                 loadPositionButton.SetActive(false);
             }
             else
             {
                 pauseMenu.SetActive(false);
                 mainGameMusic.UnPause();
                 pauseMenuMusic.Pause();
                 Cursor.visible = true;
                 pauseGameMenu = false;
                 Time.timeScale = 1;
                 thePlayer.GetComponent<CubeMovement>().enabled = true;
                 playerNameDisplay.SetActive(true);
                 savePositionButton.SetActive(true);
                 loadPositionButton.SetActive(true);
             }
         }
     }
 
     // All Buttons Go Here
 
     //Main "Items Button" on far left
     public void ShowItem()
     {
         itemPanel.SetActive(true);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     //House Items Button wit$$anonymous$$n the Main Items Button
     public void ShowHouseItems()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(true);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     //Pet Items Button wit$$anonymous$$n the Main Items Button
     public void ShowPetItems()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(true);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     //Player Items Button wit$$anonymous$$n the Main Items Button
     public void ShowPlayerItems()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(true);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     public void ShowCurrentQuest()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(true);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     public void ShowAllQuestsList()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(true);
         Q001PickFlowerSwordButton.SetActive(true);
         Q002KillTheSpidersButton.SetActive(true);
         Q003CatchHurtButterflyButton.SetActive(true);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     public void ShowQ001InfoPanel()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(true);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     public void ShowQ002InfoPanel()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(true);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(false);
     }
 
     public void ShowQ003InfoPanel()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001PickFlowerSwordButton.SetActive(false);
         Q002KillTheSpidersButton.SetActive(false);
         Q003CatchHurtButterflyButton.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(true);
         statPanel.SetActive(false);
     }
 
     public void ShowStat()
     {
         itemPanel.SetActive(false);
         itemHousePanel.SetActive(false);
         itemPetPanel.SetActive(false);
         itemPlayerPanel.SetActive(false);
         currentQuestsPanel.SetActive(false);
         allQuestsPanel.SetActive(false);
         Q001InfoPanel.SetActive(false);
         Q002InfoPanel.SetActive(false);
         Q003InfoPanel.SetActive(false);
         statPanel.SetActive(true);
     }
 
     public void ResumeGame()
     {
         pauseMenu.SetActive(false);
         pressButtonSound.Play();
         pauseMenuMusic.Pause();
         mainGameMusic.UnPause();
         Cursor.visible = true;
         pauseGameMenu = false;
         Time.timeScale = 1;
         thePlayer.GetComponent<CubeMovement>().enabled = true;
         playerNameDisplay.SetActive(true);
         savePositionButton.SetActive(true);
         loadPositionButton.SetActive(true);
     }
 
     public void RestartLevel()
     {
         pauseMenu.SetActive(false);
         pressButtonSound.Play();
         Cursor.visible = true;
         pauseGameMenu = false;
         Time.timeScale = 1;
         thePlayer.GetComponent<CubeMovement>().enabled = true;
         playerNameDisplay.SetActive(true);
         savePositionButton.SetActive(true);
         loadPositionButton.SetActive(true);
         SceneManager.LoadScene(1);
     }
 
     public void QuitToMenu()
     {
         pauseMenuMusic.Pause();
         pauseMenu.SetActive(false);
         pressButtonSound.Play();
         Cursor.visible = true;
         pauseGameMenu = false;
         Time.timeScale = 1;
         thePlayer.GetComponent<CubeMovement>().enabled = true;
         playerNameDisplay.SetActive(true);
         savePositionButton.SetActive(true);
         loadPositionButton.SetActive(true);
         SceneManager.LoadScene(0);
     }
 }

How can I hide all the elements inside of a canvas?

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