// Remove a to-do task item from the database and collections.
        public void DeleteToDoItem(ToDoItem toDoForDelete)
        {

            // Remove the to-do item from the "all" observable collection.
            AllToDoItems.Remove(toDoForDelete);

            // Remove the to-do item from the data context.
            toDoDB.Items.DeleteOnSubmit(toDoForDelete);

            // Remove the to-do item from the appropriate category.   
            switch (toDoForDelete.Category.Name)
            {
                case "Home":
                    HomeToDoItems.Remove(toDoForDelete);
                    break;
                case "Work":
                    WorkToDoItems.Remove(toDoForDelete);
                    break;
                case "Hobbies":
                    HobbiesToDoItems.Remove(toDoForDelete);
                    break;
                default:
                    break;
            }

            // Save changes to the database.
            toDoDB.SubmitChanges();
        }
        // Add a to-do item to the database and collections.
        public void AddToDoItem(ToDoItem newToDoItem)
        {
            // Add a to-do item to the data context.
            toDoDB.Items.InsertOnSubmit(newToDoItem);

            // Save changes to the database.
            toDoDB.SubmitChanges();

            // Add a to-do item to the "all" observable collection.
            AllToDoItems.Add(newToDoItem);

            // Add a to-do item to the appropriate filtered collection.
            switch (newToDoItem.Category.Name)
            {
                case "Home":
                    HomeToDoItems.Add(newToDoItem);
                    break;
                case "Work":
                    WorkToDoItems.Add(newToDoItem);
                    break;
                case "Hobbies":
                    HobbiesToDoItems.Add(newToDoItem);
                    break;
                default:
                    break;
            }
        }
Beispiel #3
0
 // Called during a remove operation
 private void detach_ToDo(ToDoItem toDo)
 {
     NotifyPropertyChanging("ToDoItem");
     toDo.Category = null;
 }
Beispiel #4
0
 // Called during an add operation
 private void attach_ToDo(ToDoItem toDo)
 {
     NotifyPropertyChanging("ToDoItem");
     toDo.Category = this;
 }
 // Called during a remove operation
 private void detach_ToDo(ToDoItem toDo)
 {
     NotifyPropertyChanging("ToDoItem");
     toDo.Category = null;
 }
 // Called during an add operation
 private void attach_ToDo(ToDoItem toDo)
 {
     NotifyPropertyChanging("ToDoItem");
     toDo.Category = this;
 }