How do you use a Undo from EditorWindow?

Questions & Answers
1

/*

  • My CustomEditorWindow → “Ctrl+Z(Undo)” is not working!!

Unity Version 4.3.4f1

*/

using UnityEditor;

public class SampleWindow : EditorWindow
{

[MenuItem( "Window/Sample Window" )]
static void ShowWindow()
{
	EditorWindow.GetWindow( typeof( SampleWindow ), false, "Sample Window" );
}

private SampleClass1 src1;

private void OnEnable()
{
	src1 = AssetDatabase.LoadAssetAtPath( "Assets/Resources/SampleObj1.prefab", typeof( SampleClass1 ) ) as SampleClass1;
}

public void OnGUI()
{
	var c = src1 as SampleClass1;

	string s = EditorGUILayout.TextField( "Text", c.sampleProperty1 );
	if( c.sampleProperty1 != s )
	{strong text
		// Does'nt work.
		Undo.RecordObject( c, "SampleClass1/String/SampleProperty1/Change" );
		c.sampleProperty1 = s;
	}

	float value = EditorGUILayout.Slider( "Value", c.slider, 0f, 1f );
	if( c.slider != value )
	{
		// Does'nt work.
		Undo.RecordObject( c, "SampleClass1/Float/Slider/Change" );
		c.slider = value;
	}
}

}

2

Generally what I’d recommend is that you create an inspector window for your type. Then in your other editor Window, you can use Editor.CreateEditor() and call it’s OnInspectorGUI from within your Editor code. That gives you both a nice inspector for the asset but still let’s you embed the inspector in a more complex GUI (which looks like what you are trying to do).