--- title: "History Members" canonical: https://www.graphicsmill.com/docs/gmwc/AllMembers_T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History.htm archived: true applies_to: - product: "Graphics Mill Web Controls" --- **You’re viewing documentation for an outdated product.** Graphics Mill Web Controls is no longer part of Graphics Mill. For current design editing and rendering tools, see [Design Atoms .NET](https://customerscanvas.com/docs/on-premises/design-atoms-cs/), [Design Atoms JS](https://customerscanvas.com/docs/on-premises/design-atoms-js/), and [Design Editor](https://customerscanvas.com/docs/on-premises/design-editor/). # History Members **Applies to:** Graphics Mill Web Controls · **Archived documentation** The [History](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History.htm.md) type exposes the following members. ## Methods | | Name | Description | | --- | --- | --- | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addCommand](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addCommand.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addLayerAdded](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerAdded.htm.md) | Adds the [LayerAddedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerAddedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addLayerMoved](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerMoved.htm.md) | Adds the [LayerMovedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerMovedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addLayerRemoved](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerRemoved.htm.md) | Adds the [LayerRemovedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerRemovedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addVObjectAdded](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectAdded.htm.md) | Adds the [VObjectAddedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectAddedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addVObjectChanged](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectChanged.htm.md) | Adds the [VObjectChangedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectChangedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addVObjectMoved](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectMoved.htm.md) | Adds the [VObjectMovedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectMovedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [addVObjectRemoved](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectRemoved.htm.md) | Adds the [VObjectRemovedCommand](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectRemovedCommand.htm.md) command to the history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [clear](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clear.htm.md) | Discards the redo and undo history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [clearRedo](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clearRedo.htm.md) | Discards the redo history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [clearUndo](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clearUndo.htm.md) | Discards the undo history. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [endVObjectGroupCommand](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_endVObjectGroupCommand.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [lockHistory](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_lockHistory.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [pauseTracking](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_pauseTracking.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [redo](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_redo.htm.md) | Redoes the last made change. | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [resumeTracking](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_resumeTracking.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [startVObjectGroupCommand](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_startVObjectGroupCommand.htm.md) | | | ![Public method](https://www.graphicsmill.com/docs/gmwc/icons/pubmethod.gif) | [undo](https://www.graphicsmill.com/docs/gmwc/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_undo.htm.md) | Undoes the last made change. | ## Fields | | Name | Description | | --- | --- | --- | | ![Public field](https://www.graphicsmill.com/docs/gmwc/icons/pubfield.gif) | [vObjectAddedFactMethod](https://www.graphicsmill.com/docs/gmwc/F_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_vObjectAddedFactMethod.htm.md) | | | ![Public field](https://www.graphicsmill.com/docs/gmwc/icons/pubfield.gif) | [vObjectChangedFactMethod](https://www.graphicsmill.com/docs/gmwc/F_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_vObjectChangedFactMethod.htm.md) | | | ![Public field](https://www.graphicsmill.com/docs/gmwc/icons/pubfield.gif) | [vObjectMovedFactMethod](https://www.graphicsmill.com/docs/gmwc/F_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_vObjectMovedFactMethod.htm.md) | | | ![Public field](https://www.graphicsmill.com/docs/gmwc/icons/pubfield.gif) | [vObjectRemovedFactMethod](https://www.graphicsmill.com/docs/gmwc/F_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_vObjectRemovedFactMethod.htm.md) | | ## Properties | | Name | Description | | --- | --- | --- | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [canRedo](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_canRedo.htm.md) | Gets the value indicating if the last action can be redone. | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [canUndo](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_canUndo.htm.md) | Gets the value indicating if the last action can be undone. | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [enable](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_enable.htm.md) | Gets or sets the value indicating if the undo/redo functionality is enabled. | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [events](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_events.htm.md) | Returns a list of client events of this history. | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [maxUndoStepCount](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_maxUndoStepCount.htm.md) | Gets or sets a maximum number of available undo steps. | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [overflowMaxUndoStepCount](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_overflowMaxUndoStepCount.htm.md) | | | ![Public property](https://www.graphicsmill.com/docs/gmwc/icons/pubproperty.gif) | [trackingEnabled](https://www.graphicsmill.com/docs/gmwc/P_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_trackingEnabled.htm.md) | Gets or sets the value indicating if the tracking commands functionality is enabled. | ## Events | | Name | Description | | --- | --- | --- | | ![Public event](https://www.graphicsmill.com/docs/gmwc/icons/pubevent.gif) | [changed](https://www.graphicsmill.com/docs/gmwc/E_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_changed.htm.md) | Fires when the history is changed. | ## See Also ### Reference - [History Class](https://www.graphicsmill.com/docs/gmwc/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History.htm.md) - [Aurigma.GraphicsMill.AjaxControls.VectorObjects.RedoUndo Namespace](https://www.graphicsmill.com/docs/gmwc/N_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo.htm.md)