Cannot get swift view to update within multiple Lists and ForEach loop - foreach

Question

I am trying to get a my contentview to update correctly when I change a property in a child view. The view displays all the data correctly, but does not update until you back up a level in the UI and go back to the child view. The child view that does not update is embedded in NavigationView -> List -> Section -> NavigationLink -> List -> ForEach -> NavigationLink.
The same child view updates content view correctly when embedded in NavigationView -> List -> Section -> ForEach -> NavigationLink.
userManager is an instance of a class containing my data, added to the environment
user is an instance of NSManagedObject stored in userManager as an array, and created by a FetchRequest from a Core Data store
UserDetail is a view displaying properties of user, accessing userManager through #EnvironmentObject.
I have tried adding the id:.id and id:.self to the ForEach loop and did not work, I started with passing the userManager in as an #ObservedObject but that did not work either.
I want to keep this view structure because it displays my data nicely the way I want it in the UI, just does not update when the user property is changed.
I am just learning SwiftUI, I am sure I am missing something obvious but I cannot figure it out after searching.
I am attaching code snippets below:
var body: some View {
NavigationView {
List {
Section("Active Users"){
ForEach(userManager.activeUsers) {user in
NavigationLink {
UserDetail( user: user) //*** this updates contentview correctly when user property is updated, this prints a confirmation to the console when user property is changed.
} label: {
Text(user.wrappedName)
}
}
}
Section("Active Users"){
NavigationLink {
List {
ForEach(userManager.activeUsers, id:\.id) { user in
NavigationLink {
UserDetail( user: user) //** this does not update content view when same property in user is updated. I prove this by a print statement which is not called.
} label: {
Text(user.wrappedName)
}
}
}
} label: {
Text("Last Names A through H")
}
}
Here is the beginning of my UserManager class, I am using a number of computed properties to return subsets of the users array.
class UserManager: ObservableObject{
#Published var users: [UserCore]
init() {
self.users = [UserCore]()
}
Here is the beginning of UserDetail View:
struct UserDetail: View {
#Environment(\.managedObjectContext) var moc
#Environment(\.presentationMode) var presentationMode
#EnvironmentObject var userManager: UserManager
var user: UserCore

Answer 1

I just figured it out!
I programmatically ask the Button that changes the user state to send an objectWillChange.send() and that forces the content view to update and gives me the functionality I want:
Button(user.isActive ? "Deactivate User" : "Activate User"){
user.isActive.toggle()
userManager.objectWillChange.send() // this fixed the problem!
try? moc.save()
presentationMode.wrappedValue.dismiss()