How to access the values of SerializedProperty.hasMultipleValue ?

I know I can use SerializedProperty.hasMultipleValue to determine whether I'm in multi-object editing mode. However, I see no way of iterating over each of the values or even simply getting / setting them.

(How) can I do it?

 

For iterating over each property and getting their values you can do something like this (theoretically)

Code (CSharp):

1. Object[] allTargetObjects = myProperty.serializedObject.targetObjects;
2. foreach(var targetObject in allTargetObjects)
3. {
4.     SerializedObject iteratedObject = new SerializedObject(targetObject);
5.     SerializedProperty iteratedProperty = iteratedObject.FindProperty(myProperty.propertyPath);
6.     float iteratedValue = iteratedProperty.floatValue;//get any value
7. }

 

Awesome! I thought of trying that but didn't know you could call a constructor on SerializedObject.

I turned it into an extension method, if anybody's interested:

Code (CSharp):

1. public static IEnumerable<SerializedProperty> Multiple(this SerializedProperty property)
2. {
3.     if (property.hasMultipleDifferentValues)
4.     {
5.         return property.serializedObject.targetObjects.Select(o => new SerializedObject(o).FindProperty(property.propertyPath));
6.     }
7.     else
8.     {
9.         return new[] { property };
10.     }
11. }
12.  

Now you can call:

Code (csharp):

1. foreach (SerializedProperty iteratedProperty in myProperty.Multiple())
2. {
3.        iteratedProperty.floatValue = ...
4. }

The extension method requires System.Linq and will automatically handle non-multiple-values properties, so it's safe to use in any context.