DiscardChanges()
Discards unsaved changes to the contents of the editor.
Read time 1 minuteLast updated 14 days ago
Definition
- Type: Method
- Namespace: UnityEditor.AssetImporters
- Assembly: UnityEditor
public override void DiscardChanges()
Remarks
Override DiscardChanges() to discard unsaved work when an editor is closed. When you override this method, call the base implementation. Otherwise the _hasUnsavedChanges property is not reset to false. Note, if the Editor has multiple prompts to the user to discard their changes, the Editor will call this method as part of a list of changes that need to be discarded. If this method throws an exception, Unity cancels the discard process for all remaining prompts. In that case, a dialog box displays an error message with the exception message.
Examples
using UnityEngine;using UnityEditor;[CreateAssetMenu]public class UnsavedChangesExampleSO : ScriptableObject{}[CustomEditor(typeof(UnsavedChangesExampleSO))]public class UnsavedChangesExampleEditor : UnityEditor.Editor{ void OnEnable() { saveChangesMessage = "This editor has unsaved changes. Would you like to save?"; } void OnInspectorGUI() { saveChangesMessage = EditorGUILayout.TextField(saveChangesMessage); EditorGUILayout.LabelField(hasUnsavedChanges ? "I have changes!" : "No changes.", EditorStyles.wordWrappedLabel); EditorGUILayout.LabelField("Try to change selection."); using (new EditorGUI.DisabledScope(hasUnsavedChanges)) { if (GUILayout.Button("Create unsaved changes")) hasUnsavedChanges = true; } using (new EditorGUI.DisabledScope(!hasUnsavedChanges)) { if (GUILayout.Button("Save")) SaveChanges(); if (GUILayout.Button("Discard")) DiscardChanges(); } } public override void SaveChanges() { // Your custom save procedures here Debug.Log($"{this} saved successfully!!!"); base.SaveChanges(); } public override void DiscardChanges() { // Your custom procedures to discard changes Debug.Log($"{this} discarded changes!!!"); base.DiscardChanges(); }}