C# (CSharp) UndoManager.AddDelegateUndo Exemples

Exemple #1

        private void Insert_Impl()
        {
            var newNote = new ShowLightViewModel(InsertColor, (int)(InsertTime * 1000f));

            UndoManager.AddDelegateUndo(
                "Insert",
                undoAction: () =>
            {
                Showlights.Remove(newNote);
                return(newNote);
            },
                redoAction: () =>
            {
                Showlights.AddOrUpdate(newNote);
                return(newNote);
            },
                FileDirty);

            Showlights.AddOrUpdate(newNote);

            SelectedItem = newNote;
            scrollIntoView.OnNext(newNote);
        }