Namespaces
- Autodesk.Revit.ApplicationServices
- Autodesk.Revit.Attributes
- Autodesk.Revit.Creation
- Autodesk.Revit.DB
- Autodesk.Revit.DB.Analysis
- Autodesk.Revit.DB.Architecture
- Autodesk.Revit.DB.DirectContext3D
- Autodesk.Revit.DB.Electrical
- Autodesk.Revit.DB.Events
- Autodesk.Revit.DB.ExtensibleStorage
- Autodesk.Revit.DB.ExternalService
- Autodesk.Revit.DB.Fabrication
- Autodesk.Revit.DB.IFC
- Autodesk.Revit.DB.Infrastructure
- Autodesk.Revit.DB.Lighting
- Autodesk.Revit.DB.Macros
- Autodesk.Revit.DB.Mechanical
- Autodesk.Revit.DB.Plumbing
- Autodesk.Revit.DB.PointClouds
- Autodesk.Revit.DB.Steel
- Autodesk.Revit.DB.Structure
- Autodesk.Revit.DB.Structure.StructuralSections
- Autodesk.Revit.DB.Visual
- Autodesk.Revit.Exceptions
- Autodesk.Revit.UI
  - AddInCommandBinding Class
  - ButtonData Class
  - ColorSelectionDialog Class
  - ComboBox Class
  - ComboBoxData Class
  - ComboBoxMember Class
  - ComboBoxMemberData Class
  - CommandMenuItem Class
  - ContextMenu Class
  - ContextualHelp Class
  - ContextualHelpType Enumeration
  - DockablePane Class
  - DockablePaneId Class
  - DockablePaneProviderData Class
  - DockablePanes Class
  - DockablePanes.BuiltInDockablePanes Class
  - DockablePaneState Class
  - DockPosition Enumeration
  - DoubleClickAction Enumeration
  - DoubleClickOptions Class
  - DoubleClickTarget Enumeration
  - EditorInteraction Class
  - EditorInteractionType Enumeration
  - ExternalApplicationArray Class
  - ExternalApplicationArrayIterator Class
  - ExternalCommandData Class
  - ExternalCommandsData Class
  - ExternalEvent Class
  - ExternalEventRequest Enumeration
  - FaceBasedPlacementType Enumeration
  - FamilyInstancePlacingArgs Class
  - FileDialog Class
  - FileOpenDialog Class
  - FileSaveDialog Class
  - FilterDialog Class
  - IContextMenuCreator Interface
  - IControllableDropHandler Interface
  - IDockablePaneProvider Interface
  - IDropHandler Interface
  - IExternalApplication Interface
  - IExternalCommand Interface
  - IExternalCommandAvailability Interface
  - IExternalEventHandler Interface
  - IExternalResourceUIServer Interface
  - IFCExternalServiceUIData Class
  - IFrameworkElementCreator Interface
  - IIFCEntityTreeUIServer Interface
  - IRevisionsOnSheetUIServer Interface
  - ItemData Class
  - ITemporaryGraphicsHandler Interface
  - ItemSelectionDialogResult Enumeration
  - MenuItem Class
  - PostableCommand Enumeration
  - PreviewControl Class
  - ProjectBrowserOptions Class
  - PromptForFamilyInstancePlacementOptions Class
  - PulldownButton Class
  - PulldownButtonData Class
  - PushButton Class
  - PushButtonData Class
  - RadioButtonGroup Class
  - RadioButtonGroupData Class
  - Result Enumeration
  - RevisionsOnSheetUIServiceData Class
  - RevitCommandId Class
  - RevitLinkUIUtils Class
  - RibbonButton Class
  - RibbonButtonOptions Class
  - RibbonItem Class
  - RibbonItemData Class
  - RibbonItemType Enumeration
  - RibbonPanel Class
  - ScrollbarVisibility Enumeration
  - SelectionUIOptions Class
  - SeparatorItem Class
  - SketchGalleryOptions Enumeration
  - SplitButton Class
  - SplitButtonData Class
  - SubMenuItem Class
  - Tab Enumeration
  - TabbedDialogAction Delegate
  - TabbedDialogExtension Class
  - TableViewUIUtils Class
  - TaskDialog Class
  - TaskDialogCommandLinkId Enumeration
  - TaskDialogCommonButtons Enumeration
  - TaskDialogIcon Enumeration
  - TaskDialogResult Enumeration
  - TemporaryGraphicsCommandData Class
  - TextBox Class
  - TextBoxData Class
  - TextEditorOptions Class
  - ThemeType Enumeration
  - ThinLinesOptions Class
  - ToggleButton Class
  - ToggleButtonData Class
  - UIApplication Class
  - UIControlledApplication Class
  - UIDocument Class
  - UIFabricationUtils Class
  - UISaveAsOptions Class
  - UITheme Enumeration
  - UIThemeManager Class
  - UIView Class
- Autodesk.Revit.UI.Events
- Autodesk.Revit.UI.Macros
- Autodesk.Revit.UI.Mechanical
- Autodesk.Revit.UI.Plumbing
- Autodesk.Revit.UI.Selection
WhatsNew
Revit .NET 8 Upgrade Tips

ExternalCommandsData Class

Revit 2026 API

ExternalCommandsData Class

Base class used to contain external command information necessary to construct PushButtonData and MenuItem.

Inheritance Hierarchy

SystemObject
Autodesk.Revit.UIExternalCommandsData

Namespace: Autodesk.Revit.UI
Assembly: RevitAPIUI (in RevitAPIUI.dll) Version: 26.0.4.0 (26.0.4.0)

Syntax

public class ExternalCommandsData : IDisposable

Public Class ExternalCommandsData
	Implements IDisposable

public ref class ExternalCommandsData : IDisposable

type ExternalCommandsData = 
    class
        interface IDisposable
    end

The ExternalCommandsData type exposes the following members.

Properties

	Name	Description
	AssemblyName	The assembly path of the menu item.
	AvailabilityClassName	The full class name for the class providing the entry point to decide availability of this menu item.
	ClassName	The name of the class containing the implementation for the command.
	IsValidObject	Specifies whether the .NET object represents a valid Revit entity.

Methods

	Name	Description
	Dispose	Releases all resources used by the ExternalCommandsData
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
	GetHashCode	Serves as the default hash function. (Inherited from Object)
	GetType	Gets the Type of the current instance. (Inherited from Object)
	ToString	Returns a string that represents the current object. (Inherited from Object)

See Also

Reference

Autodesk.Revit.UI Namespace

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T:Autodesk.Revit.UI.ExternalCommandsData