Trying to learn Swift and SwiftUI, but I'm not happy about it.

I have a data model:

class File : Identifiable, Hashable, CustomStringConvertible {
    var edited:Bool = false;
}

The SwiftUI view has a column that shows the edited value as either blank or the pencil system image:

public var body: some View {
  NavigationSplitView {
    Table(of:File.self, selection:$selection) { 
      TableColumn("Edited") { fyl in
        if fyl.edited {
          SwiftUI.Label("", systemImage:"pencil")
            .font(.system(size:8, weight:.heavy))
        }
      }
    }
  rows: { 
  etc…

However, when an edited value is set to true, the table doesn't update. I have to manually click on the row to make it redraw. Since SwiftUI doesn't have the convenience of letting me assign the Table to a property and then calling reloadData like NSTableView does, I'm not sure what to do. I've read things about @ObservableObject and such, but I'm not sure I understand where it goes, and when I try it on the edited property I get a syntax error. Any help?

That's a little helpful, but not enough. I've added ObservableObject to the File class. According to Apple's docs, the edited property needs to be marked with @Published. In my case, the View has a var that is an array of File. When I annotate that var with either @StateObject (or any of the @xxx wrappers or whatever they are), it produces errors. Apple's docs also show an example for a single object of the class, not an array.

class File : Identifiable, Hashable, CustomStringConvertible, ObservableObject {
    @Published var          edited:Bool = false;
}

public var body: some View {
     /*What goes here?*/var         files:[File] = [];
     The rest as above…

I wish I could just get an answer without having to watch a video. Maybe I misunderstood the purpose of this forum, but I assumed I could ask a question and get some plain answers or clear cut suggestions. I'm not trying to start a new career as a Swift engineer, but just finish a small project by dabbling in SwiftUI to see what all the hubbub is about.