How To: Declare undoable list and dictionary

For the moment of writing this topic DejaVu supports two types of data collections: list and dictionary.

They are implemented in classes DejaVu.Collections.Generic.UndoRedoList<T> and DejaVu.Collections.Generic.UndoRedoDictionary<T>.
These classes have exactly the same public interface as standard classes List<T> and Dictionary<T> correspondently but with undo/redo engine under the hood.

Declaration of list/dictionary propery is farly simple:

using Dejavu;
...
class MyClass2
{
  private readonly UndoRedoList<MyClass> myclasses = new UndoRedo<MyClass>();
  public UndoRedoList<MyClass> MyClasses
  {
    get { return myclasses ; }
    set { myclasses = value; }
  }
}

As you can see property returns an list of type UndoRedoList<MyClass>. You can add/remove items in this list as you did ever before but when time comes, all these changes can be undone or redone in a single bunch.

In next posts I will eventually show how you can organize your changes into commands and how to make them undo/redo.