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Grasshopper
Grasshopper.Documentation
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Grasshopper.GUI.Base
Grasshopper.GUI.Canvas
Grasshopper.GUI.Canvas.TagArtists
Grasshopper.GUI.Gradient
Grasshopper.GUI.Theme
Grasshopper.Kernel
- GH_ActiveObject Class
- GH_Alias Class
- GH_Arrange Enumeration
- GH_AssemblyFolderInfo Structure
- GH_AssemblyInfo Class
- GH_AssemblyInfoStub Class
- GH_AssemblyPriority Class
- GH_Attributes(T) Class
- GH_AttributesChangedEventArgs Class
- GH_Author Class
- GH_AutoSaveSettings Class
- GH_AutoSaveSettings.AutoSaveFileFormatChangedEventHandler Delegate
- GH_AutoSaveSettings.EnableAutoSaveChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnDataFlatteningChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnDocumentUnloadChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnObjectAddedChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnObjectChangeChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnObjectRemovedChangedEventHandler Delegate
- GH_AutoSaveSettings.SaveOnWireEventChangedEventHandler Delegate
- GH_AutoSaveTrigger Enumeration
- GH_BakeUtility Class
- GH_BitmapChannel Enumeration
- GH_CharPatternParamNameConstructor Class
- GH_ClipboardType Enumeration
- GH_Component Class
- GH_Component.GH_InputParamManager Class
- GH_Component.GH_OutputParamManager Class
- GH_ComponentParamServer Class
- GH_ComponentParamServer.IGH_SyncObject Interface
- GH_ComponentParamServer.ParameterChangedEventHandler Delegate
- GH_ComponentParamServer.ParameterNickNameChangedEventHandler Delegate
- GH_ComponentParamServer.ParameterSourcesChangedEventHandler Delegate
- GH_ComponentServer Class
- GH_ComponentServer.GHAFileLoadedEventHandler Delegate
- GH_ConnectivityDiagram Class
- GH_ConnectivityDisparity Class
- GH_ConnectivityNode Class
- GH_Conversion Enumeration
- GH_Convert Class
- GH_CustomEventServer Class
- GH_DataComparison Enumeration
- GH_DataMapping Enumeration
- GH_DebugDescriptionWriter Class
- GH_DisplayExpiredEventArgs Class
- GH_DocContextEventArgs Class
- GH_DocEnabledEventArgs Class
- GH_DocFilePathEventArgs Class
- GH_DocModifiedEventArgs Class
- GH_DocObjectEventArgs Class
- GH_DocSettingsEventArgs Class
- GH_Document Class
  - GH_Document Constructor
  - GH_Document Properties
  - GH_Document Methods
    - ActiveObjects Method
    - AddObject Method
    - AlignObjects Method
    - AppendToDebugLog Method
    - ArrangeObject Method
    - ArrangeObjects Method
    - AssociateWithRhinoDocument Method
    - AutoLayoutComponents Method
    - AutoSave Method
    - AutoSaveFileName Method
    - BoundingBox Method
    - BringSelectionToTop Method
    - ClearIgnoreList Method
    - ClearReferenceTable Method
    - CloseAllSubsidiaries Method
    - ClusterInputHooks Method
    - ClusterInstanceCount Method
    - ClusterOutputHooks Method
    - CompareTo Method
    - ConstructDocumentTree Method
    - ContainsClusterHooks Method
    - ConvertFullNamesToNickNames Method
    - ConvertNickNamesToFullNames Method
    - CreateAutomaticClusterHooks Method
    - CreateConnectivityDiagram Method
    - CreateExpressionParser Method
    - DefineConstant Method
    - DeselectAll Method
    - DestroyAttributeCache Method
    - DestroyAutoSaveFiles Method
    - DestroyObjectTable Method
    - DestroyPreviewCaches Method
    - DestroyPreviewMeshes Method
    - DestroyProxySources Method
    - DisabledObjects Method
    - Dispose Method
    - DuplicateDocument Method
    - EnabledObjects Method
    - ExpandSelection Method
    - ExpirePreview Method
    - ExpireSolution Method
    - FilterActive Method
    - FilterDisabled Method
    - FilterEnabled Method
    - FilterInactive Method
    - FilterObjects Method
    - FilterSelected Method
    - FilterUnselected Method
    - FindAllDownstreamObjects Method
    - FindAttribute Method
    - FindAttributeByGrip Method
    - FindClusters Method
    - FindComponent Method
    - FindFloatingParameter Method
    - FindInputParameter Method
    - FindObject Method
    - FindObjects Method
    - FindOutputParameter Method
    - FindParameter Method
    - FindWireAt Method
    - ForcePreview Method
    - GetAllInstanceIDs Method
    - InactiveObjects Method
    - InvertSelection Method
    - IsEscapeKeyDown Method
    - IsRenderMeshPipelineViewport Method
    - MergeDocument Method
    - Modified Method
    - MutateAllIds Method
    - NewSolution Method
    - NonBlankFilter Method
    - NullFilter Method
    - OnContextChanged Method
    - OnEnabledChanged Method
    - OnFilePathChanged Method
    - OnModifiedChanged Method
    - OnObjectAdded Method
    - OnObjectDeleted Method
    - OnObjectsAdded Method
    - OnObjectsDeleted Method
    - OnSettingsChanged Method
    - OnUndoStateChanged Method
    - PreviewCurrentMeshParameters Method
    - Read Method
    - Redo Method
    - RelevantObjectAtPoint Method
    - RemoveObject Method
    - RemoveObjects Method
    - RemoveSelection Method
    - RepairProxySources Method
    - ReplaceProxySources Method
    - RequestAbortSolution Method
    - ScheduleSolution Method
    - Select Method
    - SelectAll Method
    - SelectedObjects Method
    - SetEnabledFlags Method
    - SetPreviewFlags Method
    - SetStatusBarEventHelper Method
    - ShowPreviewSettings Method
    - SolutionProgress Method
    - ToggleEnabledFlags Method
    - TogglePreviewFlags Method
    - ToString Method
    - TranslateObjects Method
    - Undo Method
    - UnselectedObjects Method
    - UpdateAllSubsidiaries Method
    - Write Method
  - GH_Document Events
  - GH_Document Fields
- GH_Document.ContextChangedEventHandler Delegate
- GH_Document.DefaultPreviewColourChangedEventHandler Delegate
- GH_Document.DefaultSelectedPreviewColourChangedEventHandler Delegate
- GH_Document.EnabledChangedEventHandler Delegate
- GH_Document.EnableSolutionsChangedEventHandler Delegate
- GH_Document.FilePathChangedEventHandler Delegate
- GH_Document.GH_ActiveObjectFilter Delegate
- GH_Document.GH_ScheduleDelegate Delegate
- GH_Document.GH_UndoUtil Class
- GH_Document.ModifiedChangedEventHandler Delegate
- GH_Document.ObjectsAddedEventHandler Delegate
- GH_Document.ObjectsDeletedEventHandler Delegate
- GH_Document.SettingsChangedEventHandler Delegate
- GH_Document.SolutionEndEventHandler Delegate
- GH_Document.SolutionStartEventHandler Delegate
- GH_Document.UndoStateChangedEventHandler Delegate
- GH_DocumentAssociations Class
- GH_DocumentContext Enumeration
- GH_DocumentEventServer Class
- GH_DocumentIO Class
- GH_DocumentObject Class
- GH_DocumentObject.ColourEventHandler Delegate
- GH_DocumentRank Enumeration
- GH_DocumentRenderMeshProvider Class
- GH_DocumentServer Class
- GH_DocumentServer.DocumentAddedEventHandler Delegate
- GH_DocumentServer.DocumentRemovedEventHandler Delegate
- GH_DocumentSettings Enumeration
- GH_DocumentTree Class
- GH_DocumentTreeNode Class
- GH_DocUndoEventArgs Class
- GH_Exposure Enumeration
- GH_ExternalFile Class
- GH_ExternalFileType Enumeration
- GH_FileSystemEventServer Class
- GH_FileSystemEventServer.FileEvent Delegate
- GH_FileWatcher Class
- GH_FileWatcher.FileChanged Delegate
- GH_FileWatcher.FileChangedSimple Delegate
- GH_FileWatcherEvents Enumeration
- GH_Filter Enumeration
- GH_FontServer Class
- GH_FontServer.ConsoleFamilyChangedEventHandler Delegate
- GH_FontServer.ScriptFamilyChangedEventHandler Delegate
- GH_FontServer.StandardFamilyChangedEventHandler Delegate
- GH_Format Class
- GH_GetterResult Enumeration
- GH_GHALoadingEventArgs Class
- GH_GHXHarvester Class
- GH_GuidConflictSolution Enumeration
- GH_IconDisplayMode Enumeration
- GH_InstanceDescription Class
- GH_LibraryLicense Enumeration
- GH_LineParser Class
- GH_LineParserAction Enumeration
- GH_ListUtil Class
- GH_LoadingAttribute Class
- GH_LoadingDemand Enumeration
- GH_LoadingInstruction Enumeration
- GH_LoadingMechanism Enumeration
- GH_MatchLevel Enumeration
- GH_MatchWeight Enumeration
- GH_MemoryBitmap Class
- GH_ObjectChangedEventArgs Class
- GH_ObjectEventType Enumeration
- GH_ObjectSpecies Enumeration
- GH_ObjectType Enumeration
- GH_Param(T) Class
- GH_ParamAccess Enumeration
- GH_ParamData Enumeration
- GH_ParameterContext Class
- GH_ParameterSide Enumeration
- GH_ParamHashFields Enumeration
- GH_ParamKind Enumeration
- GH_ParamServerEventArgs Class
- GH_ParamWireDisplay Enumeration
- GH_PersistentGeometryParam(T) Class
- GH_PersistentParam(T) Class
- GH_PickBox Enumeration
- GH_PingDocumentEventArgs Class
- GH_PluginFolderType Enumeration
- GH_PreviewArgs Class
- GH_PreviewBoundary Class
- GH_PreviewExpiredEventArgs Class
- GH_PreviewFilter Enumeration
- GH_PreviewMesh Enumeration
- GH_PreviewMeshArgs Class
- GH_PreviewMode Enumeration
- GH_PreviewUtil Class
- GH_PreviewWireArgs Class
- GH_PrincipalState Enumeration
- GH_ProcessStep Enumeration
- GH_ProfilerMode Enumeration
- GH_RelevantObjectData Class
- GH_RelevantObjectFilter Enumeration
- GH_RenderArgs Class
- GH_RuntimeMessage Class
- GH_RuntimeMessageLevel Enumeration
- GH_SelectionState Enumeration
- GH_SelectionTopology Enumeration
- GH_SettingsServer Class
- GH_SettingsType Enumeration
- GH_SolutionEventArgs Class
- GH_SolutionExpiredEventArgs Class
- GH_SolutionMode Enumeration
- GH_SolutionPhase Enumeration
- GH_SolutionSpan Structure
- GH_State Class
- GH_StateServer Class
- GH_StateTag Class
- GH_StateTag.DrawCallback Delegate
- GH_StateTagLayoutDirection Enumeration
- GH_StateTagList Class
- GH_TaskCapableComponent(T) Class
- GH_TimeKind Enumeration
- GH_TypeLib Class
- GH_UndoOperation Enumeration
- GH_UpgradeUtil Class
- GH_UserObject Class
- GH_ValueProxy(T) Class
- GH_VarParamEventArgs Class
- GH_VarParamSide Enumeration
- GH_ZuiAction Class
- IGH_ActiveObject Interface
- IGH_Attributes Interface
- IGH_Author Interface
- IGH_BakeAwareData Interface
- IGH_BakeAwareObject Interface
- IGH_Component Interface
- IGH_ContextualParameter Interface
- IGH_DataAccess Interface
- IGH_DebugDescription Interface
- IGH_DocumentObject Interface
- IGH_DocumentObject.AttributesChangedEventHandler Delegate
- IGH_DocumentObject.DisplayExpiredEventHandler Delegate
- IGH_DocumentObject.ObjectChangedEventHandler Delegate
- IGH_DocumentObject.PingDocumentEventHandler Delegate
- IGH_DocumentObject.PreviewExpiredEventHandler Delegate
- IGH_DocumentObject.SolutionExpiredEventHandler Delegate
- IGH_DocumentOwner Interface
- IGH_EventConsumer Interface
- IGH_InitCodeAware Interface
- IGH_InstanceDescription Interface
- IGH_InstanceGuidDependent Interface
- IGH_ObjectProxy Interface
- IGH_Param Interface
- IGH_PreviewArgs Interface
- IGH_PreviewData Interface
- IGH_PreviewMeshData Interface
- IGH_PreviewObject Interface
- IGH_RenderAwareData Interface
- IGH_RenderAwareObject Interface
- IGH_StateAwareObject Interface
- IGH_StateTag Interface
- IGH_TaskCapableComponent Interface
- IGH_UpgradeObject Interface
- IGH_UserPromptAware Interface
- IGH_ValueProxy Interface
- IGH_VariableParameterComponent Interface
- IGH_VarParamComponent Interface
- IGH_ZuiAction Interface
- IRcpAwareObject Interface
Grasshopper.Kernel.Attributes
Grasshopper.Kernel.Data
Grasshopper.Kernel.Expressions
Grasshopper.Kernel.Geometry.SpatialTrees
Grasshopper.Kernel.Parameters
Grasshopper.Kernel.Types
Grasshopper.Kernel.Types.Transforms
Grasshopper.Kernel.Undo
Grasshopper.Kernel.Undo.Actions
Grasshopper.Plugin

GH_Document.Undo Method

Grasshopper API

GH_DocumentUndo Method

Perform the first undo event.

Namespace: Grasshopper.Kernel
Assembly: Grasshopper (in Grasshopper.dll)

Syntax

public bool Undo()

Public Function Undo As Boolean

Return Value

Type: Boolean
True on success, false on no undo event or invalid undo event.

Reference

GH_Document Class

Grasshopper.Kernel Namespace

Report wishes and bugs at discourse.mcneel.com

M:Grasshopper.Kernel.GH_Document.Undo