SwiftUI Edit Item From List Using CoreData

I am working on a list app and would like the ability to edit the list item details. I am using CoreData for the data model. Right now I am stuck on how to pass the data item from the DetailView to the EditItemView. I updated to the code to the current state I am at. I am currently getting an error in the DetailView taged to the DetailView(myItem: item) line the preview. Am I setting the @State correctly for name and passing the @Binding correctly? I think my error lies in the way I am passing the name in EditItemView(name: self.$name) to the edit view. Thoughts?

Detail View:

import CoreData
import SwiftUI

struct DetailView: View {
    @Environment(\.managedObjectContext) var moc
    @ObservedObject var myItem: Item

    @State private var name: String
    @State private var showingEditScreen = false

    var body: some View {
        NavigationView {
            VStack {
                Text(self.myItem.name ?? "Unknown Item")
                Text(self.myItem.attribute ?? "Unknown attribute")
            }
        }
        .navigationBarTitle(Text(myItem.name ?? "Unknown Item"), displayMode: .inline)
        .navigationBarItems(trailing:
            Button(action: {
                self.showingEditScreen.toggle()
            }) {
                Image(systemName: "square.and.pencil")
            }
        )
        .sheet(isPresented: $showingEditScreen) {
            EditItemView(name: self.$name).environment(\.managedObjectContext, self.moc)
        }
    }
}

struct DetailView_Previews: PreviewProvider {
    static let moc = NSManagedObjectContext(concurrencyType: .mainQueueConcurrencyType)

    static var previews: some View {
        let item = Item(context: moc)
        item.name = "Test item"
        item.attribute = "Test attribute"

        return NavigationView {
            DetailView(myItem: item)
        }
    }
}

Edit Item View:

import CoreData
import SwiftUI

struct EditItemView: View {
    @Binding var name: String

    var body: some View {
        TextField("Enter Item Name", text: self.$name)
    }
}

struct EditItemView_Previews: PreviewProvider {
    static var previews: some View {
        EditItemView(name: .constant("ItemX"))
    }
}