---
title: "History Members"
canonical: https://www.graphicsmill.com/docs/gm5/AllMembers_T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History.htm
product: "Graphics Mill 5.5 for .NET"
---

This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)

# History Members
 
The [History](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubmethod.gif) |  [addLayerAdded](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerAdded.htm.md) |  Adds the [LayerAddedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerAddedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addLayerMoved](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerMoved.htm.md) |  Adds the [LayerMovedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerMovedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addLayerRemoved](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addLayerRemoved.htm.md) |  Adds the [LayerRemovedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_LayerRemovedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addVObjectAdded](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectAdded.htm.md) |  Adds the [VObjectAddedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectAddedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addVObjectChanged](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectChanged.htm.md) |  Adds the [VObjectChangedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectChangedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addVObjectMoved](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectMoved.htm.md) |  Adds the [VObjectMovedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectMovedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [addVObjectRemoved](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_addVObjectRemoved.htm.md) |  Adds the [VObjectRemovedCommand](https://www.graphicsmill.com/docs/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_VObjectRemovedCommand.htm.md) command to the history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [clear](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clear.htm.md) |  Discards the redo and undo history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [clearRedo](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clearRedo.htm.md) |  Discards the redo history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [clearUndo](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_clearUndo.htm.md) |  Discards the undo history. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [redo](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_redo.htm.md) |  Redoes the last made change. |
 |  ![Public method](https://www.graphicsmill.com/docs/gm5/icons/pubmethod.gif) |  [undo](https://www.graphicsmill.com/docs/gm5/M_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History_undo.htm.md) |  Undoes the last made change. |
 
## Properties

|   |  Name |  Description |
| --- | --- | --- |
 |  ![Public property](https://www.graphicsmill.com/docs/gm5/icons/pubproperty.gif) |  [canRedo](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubproperty.gif) |  [canUndo](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubproperty.gif) |  [enable](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubproperty.gif) |  [events](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubproperty.gif) |  [maxUndoStepCount](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubproperty.gif) |  [trackingEnabled](https://www.graphicsmill.com/docs/gm5/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/gm5/icons/pubevent.gif) |  [changed](https://www.graphicsmill.com/docs/gm5/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/gm5/T_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo_History.htm.md)
- [Aurigma.GraphicsMill.AjaxControls.VectorObjects.RedoUndo Namespace](https://www.graphicsmill.com/docs/gm5/N_J_Aurigma_GraphicsMill_AjaxControls_VectorObjects_RedoUndo.htm.md)