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IUndoRedoService

Interface

The service handling the undo-redo stack.

Definition

Namespace:Telerik.Windows.Diagrams.Core

Assembly:Telerik.WinControls.RadDiagram.dll

Syntax:

public interface IUndoRedoService

Derived Classes: UndoRedoService

Properties

IsActive

bool

Gets the is active property.

bool IsActive { get; }

Property Value:

Determines whether the undoRedo service is executing undo or redo action at the moment.

RedoBufferSize

int

Gets or sets the size of the redo buffer.

int RedoBufferSize { get; set; }

Property Value:

The size of the redo buffer.

RedoStack

IEnumerable<ICommand>

Gets the redo stack.

IEnumerable<ICommand> RedoStack { get; }

UndoBufferSize

int

Gets or sets the size of the undo buffer.

int UndoBufferSize { get; set; }

Property Value:

The size of the undo buffer.

UndoStack

IEnumerable<ICommand>

Gets the undo stack.

IEnumerable<ICommand> UndoStack { get; }

Methods

AddCommand(ICommand)

Adds the given command without executing it.

void AddCommand(ICommand command)

Parameters:commandICommand

The command to add.

CanRedo()

Determines whether this instance can redo.

bool CanRedo()

Returns:

bool

true if this instance can redo; otherwise, false.

CanUndo()

Determines whether this instance can undo.

bool CanUndo()

Returns:

bool

true if this instance can undo; otherwise, false.

Clear()

Clears the undo and redo stacks.

void Clear()

ExecuteCommand(ICommand, object)

Executes the command.

void ExecuteCommand(ICommand command, object state = null)

Parameters:commandICommand

The command.

stateobject

The state.

Redo()

Redoes this instance.

void Redo()

RemoveCommand(ICommand)

Removes the command.

void RemoveCommand(ICommand command)

Parameters:commandICommand

The command.

Undo(object)

Undoes this instance.

void Undo(object state = null)

Parameters:stateobject

Events

ActionExecuted

EventHandler<CommandEventArgs>

event EventHandler<CommandEventArgs> ActionExecuted