I wrote this code, it adds new item and delete it perfectly, but I can not make an edit on any item. I copied the item into Textfield in a sheet so I can modify it. I tried to make i.toDo = toEdit, and save it but I think it is not the correct way.I searched about the problem but no way to the answer.

import SwiftUI
import CoreData
struct ContentView: View {
var context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
@State var showEditSheet = false
@State var toEdit = ""
@FetchRequest(
    sortDescriptors: [NSSortDescriptor(keyPath: \Note.toDo, ascending: true)], animation: .default)
var items : FetchedResults<Note>
@State private var task = ""
var body: some View {

    NavigationView{
        VStack(){
            List{
                ForEach(items) { i in

                Text(i.toDo!)
                    .onTapGesture{
                    showEditSheet.toggle()
                        toEdit = i.toDo!
                    }
                    .sheet(isPresented: $showEditSheet){
                        VStack{
                        TextField("",text: $toEdit)
                            Button(action:{

                                 /// Editing here ///
                                /// It does not work///

                                try! context.save()

                            }
                                   ){
                                Text("save")
                            }
                    }
                    }
                }.onDelete(perform: remove)
            }.navigationBarTitle(Text("Note"))

            TextField("note here ...", text: $task)
            Button(action:{
                let newNote = Note(context: context)
                newNote.toDo = task

                do{
                    try context.save()
                }catch{print(error.localizedDescription)}
            }){
                Text("save")
            }
        }.padding()
    }
}

func remove(offsets : IndexSet){
    offsets.map{
        items[$0]}.forEach(context.delete)

    do{
        try context.save()
    }catch{}
    }