Opentribe.Memento 0.1.8

// Initialize the Memento // First step is to initialize a Memento object. This object is the “Caretaker” in the memento design pattern. public static Memento.Memento Caretaker { get; set; } = new Memento.Memento();

//Remember and change one attribute //To remember the state of an object, you have to ask the Caretaker to remember each attributes of the object than you are free to modify these attributes.

Caretaker.Remember<MyObject, string>(AnObject, “MyStringAttribute”); // remember

AnObject.MyStringAttribute = “A new state”; // change attribute

Caretaker.Undo(); // restore the previous value

// Remember and change several attributes // To remember the state of an object, you have to ask the Caretaker to remember each attributes of the object than you are free to modify these attributes.

Caretaker.Begin(); // start to remember Caretaker.Remember<MyObject, string>(AnObject, “MyStringAttribute”); // remember first attribute Caretaker.Remember<MyObject, int>(AnObject, “MyIntAttribute”); // remember second attribute Caretaker.End(); // stop registering

AnObject.MyStringAttribute = “A new state”; // change first attribute AnObject.MyIntAttribute = 123; // change second attribute

Caretaker.Undo(); // restores second and first attribute.