When set to true in a derived class, the editor will prompt the user to save unsaved changes if the window is about to be closed.
Set hasUnsavedChanges to true to prevent users from accidentally losing unsaved work. For hasUnsavedChanges to work, you must use it with EditorWindow.saveChangesMessage and override the EditorWindow.SaveChanges method. Once hasUnsavedChanges is enabled, the tile bar and docked tabs will update to show that the user needs to save their work. If the user closes the window without saving, a message box will pop up which prompts them to either save at that time, discard the charges or cancel.
// C# Example // Script that demonstrates the unsaved changes API
using UnityEngine; using UnityEditor;
public class UnsavedChangesExampleWindow : EditorWindow { [MenuItem("Example/Editor Window With Unsaved Changes")] static void Init() { UnsavedChangesExampleWindow window = (UnsavedChangesExampleWindow)EditorWindow.GetWindowWithRect(typeof(UnsavedChangesExampleWindow), new Rect(100, 100, 400, 400));
window.saveChangesMessage = "This window has unsaved changes. Would you like to save?"; window.Show(); }
void OnGUI() { saveChangesMessage = EditorGUILayout.TextField(saveChangesMessage);
EditorGUILayout.LabelField(hasUnsavedChanges ? "I have changes!" : "No changes.", EditorStyles.wordWrappedLabel); EditorGUILayout.LabelField("Try to close the window.");
if (GUILayout.Button("Create unsaved changes")) hasUnsavedChanges = true;
if (GUILayout.Button("Save")) SaveChanges(); }
public override void SaveChanges() { // Your custom save procedures here
Debug.Log($"{this} saved successfully!!!"); base.SaveChanges(); } }
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.