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Developer guide

Last updated Mar 30, 2026

UiPath.Studio.Activities.Api.ObjectLibrary

In this section you can find more information on how to build activities using UiPath.Studio.Activities.Api.ObjectLibrary.

ActivityCreationObjectData

Note:

This feature was introduced in UiPath.Studio.Activities.Api v22.4.

Model that is used by the Object Repository for interaction with IActivityFactoryRepository. The model is available for RegisterArgs.FactoryV3 and later.

Properties

Type	Name	Description
string	Id	The source ID.
string	Reference	The object reference.

IContentComputeArgs

Note:

This feature was introduced in UiPath.Studio.Activities.Api v21.4.

Properties

Type	Name	Description
string	SourceId	Source ID
string	ObjectReference	Object reference
string	ContentName	Content name

IContentDescription

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Content handler interface.

Properties

Type	Name	Description
string	ContentName	Content name.
string	DisplayName	Localized display name.
string	Description	Localized description.
string	DisplayColor	Content color (for the edit object buttons).
byte[]	Icon	Content icon.
string	SelectionName	Selection name corresponding to this content registered using IObjectSelectionDescription.
`Func<IContentEditArgs, Task<bool?>>`	OnEdit	Edit handler.
`Func<IContentHighlightArgs, Task>`	OnHighlight	Enables functionality to highlight the element in the target application.
bool	NeedsParentValidation	If set to `true` it specifies that this content needs a specific parent on add and move operations.

Methods

void RegisterParentValidation(Action setter)

Used to validate parent objects on add and move when NeedsParentValidation is true.

Parameter Type	Parameter Name	Description
Action	setter

IContentEditArgs

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Properties

Type	Name	Description
string	SourceId	Source ID
string	ObjectReference	Object reference
string	ContentName	Content name

IContentHighlightArgs

Note:

This feature was introduced in UiPath.Studio.Activities.Api v21.4.

Properties

Type	Name	Description
string	SourceId	Source ID
string	ObjectReference	Object reference
string	ContentName	Content name

IContentOperations

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Designer operations API.

Methods

void RegisterContent(Action setter)

Registers a content handler for a specific content name

Parameter Type	Parameter Name
Action	setter

void RegisterObjectSelection(Actionsetter)

Registers a handler for indicating objects.

Parameter Type	Parameter Name
Action	setter

ILibraryService

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

API for manipulating library objects.

Properties

Type	Name	Description
IContentOperations	Content
IObjectOperations	Objects
bool	DesignTimeEnforced	If set to `true`, the use of objects from the Object Repository is enforced.

IObjectCreateCriteria

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Properties

Type	Name
string	SourceId
string	ObjectRef
string	ParentRef
string	Name
string	Description
string	Type
string	TaxonomyType
`IReadOnlyList<string>`	Content
IReadOnlyList<byte[]>	Images

IObjectDragArgs

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Properties

Type	Name
string	ObjectType
`IReadOnlyList<string>`	Content

IObjectOperations

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Methods

`Task<IObjectCreateCriteria> ShowCreateWindow(Action<IObjectCreateCriteria> criteriaSetter)`

Parameter Type	Parameter Name
Action	criteriaSetter

void InvokeOnSourcesChanged(Action handler)

Parameter Type	Parameter Name
Action	handler

void InvokeOnBeginDrag(Action handler);

Parameter Type	Parameter Name
Action	handler

void InvokeOnEndDrag(Action handler)

Parameter Type	Parameter Name
Action	handler

void NotifyObjectChanged(string sourceId, string objectReference)

Parameter Type	Parameter Name
string	sourceId
string	objectReference

`IDisposable BeginEdit(string sourceId, IReadOnlyList<string> objectReferences)`

Parameter Type	Parameter Name
string	sourceId
`IReadOnlyList<string>`	objectReferences

`Task<IDisposable> BeginEditAsync(string sourceId, IReadOnlyList<string> objectReferences)`

Parameter Type	Parameter Name
string	sourceId
`IReadOnlyList<string>`	objectReferences

void Focus(string sourceId, string objectReference)

Parameter Type	Parameter Name
string	sourceId
string	objectReference

`Task<bool?> ShowReuseObjectDialog(string objectReference, bool addingToLibrary)`

Parameter Type	Parameter Name
string	objectReference
bool	addingToLibrary

`Task<bool?> ShowEditLinkedObjectDialog(string objectReference, bool isReindicating)`

Parameter Type	Parameter Name
string	objectReference
bool	isReindicating

IObjectRestriction

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Properties

Type	Name	Description
string	ObjectType	The type of object this restriction applies to. If `null`, it applies to all.
`IReadOnlyList<string>`	RequiredContent	Used to validate if the object contains one of the specified content names.

IObjectSelectionDescription

Note:

This feature was introduced in UiPath.Studio.Activities.Api v21.4.

Allows indicating on screen from an Object Repository object.

Properties

Type	Name	Description
string	SelectionName	Selection name.
string	DisplayName	Localized display name for the Indicate button.
string	Description	Localized description.
string	DisplayColor	Content color for the Edit Object buttons.
byte[]	Icon	Content icon.
string	RecordDisplayName	Localized display name for the Record button.
bool	SupportsObjectRecorderHighlight	Returns `true` if element highlighting is supported. Requires Studio 2021.10 or later.
bool	SupportsObjectRecorderCurrentElements	Returns `true` if elements are listed during recording. Requires Studio 2021.10 or later.
`IReadOnlyList<string>`	SupportedObjectTypes	Returns a list of objects that can be recorded.
`Func<ISelectionArgs, Task<bool?>>`	OnIndicate	Allows the injection of a function that can be called when Indicate on screen was clicked.
Func	GetObjectRecorderFactory	Returns the function that allows the recording of objects from the Object Repository.
Func	GetAutoCaptureElementsFactory	Returns the function that allows triggering the Capture All feature from the Object Repository. Requires Studio 2021.10 or later.

IObjectSource

Note:

This feature was introduced in UiPath.Studio.Activities.Api v20.4.

Properties

Type	Name
string	Id
string	Url
bool	CanWrite

ISelectionArgs

Note:

This feature was introduced in UiPath.Studio.Activities.Api v21.4.

Properties

Type	Name
string	SourceId
string	ObjectReference
string	SelectionName

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Developer guide

ActivityCreationObjectData​

Properties​

IContentComputeArgs​

Properties​

IContentDescription​

Properties​

Methods​

void RegisterParentValidation(Action setter)​

IContentEditArgs​

Properties​

IContentHighlightArgs​

Properties​

IContentOperations​

Methods​

void RegisterContent(Action setter)​

void RegisterObjectSelection(Actionsetter)​

ILibraryService​

Properties​

IObjectCreateCriteria​

Properties​

IObjectDragArgs​

Properties​

IObjectOperations​

Methods​

Task<IObjectCreateCriteria> ShowCreateWindow(Action<IObjectCreateCriteria> criteriaSetter)​

void InvokeOnSourcesChanged(Action handler)​

void InvokeOnBeginDrag(Action handler);​

void InvokeOnEndDrag(Action handler)​

void NotifyObjectChanged(string sourceId, string objectReference)​

IDisposable BeginEdit(string sourceId, IReadOnlyList<string> objectReferences)​

Task<IDisposable> BeginEditAsync(string sourceId, IReadOnlyList<string> objectReferences)​

void Focus(string sourceId, string objectReference)​

Task<bool?> ShowReuseObjectDialog(string objectReference, bool addingToLibrary)​

Task<bool?> ShowEditLinkedObjectDialog(string objectReference, bool isReindicating)​

IObjectRestriction​

Properties​

IObjectSelectionDescription​

Properties​

IObjectSource​

Properties​

ISelectionArgs​

Properties​

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ActivityCreationObjectData

Properties

IContentComputeArgs

Properties

IContentDescription

Properties

Methods

void RegisterParentValidation(Action setter)

IContentEditArgs

Properties

IContentHighlightArgs

Properties

IContentOperations

Methods

void RegisterContent(Action setter)

void RegisterObjectSelection(Actionsetter)

ILibraryService

Properties

IObjectCreateCriteria

Properties

IObjectDragArgs

Properties

IObjectOperations

Methods

`Task<IObjectCreateCriteria> ShowCreateWindow(Action<IObjectCreateCriteria> criteriaSetter)`

void InvokeOnSourcesChanged(Action handler)

void InvokeOnBeginDrag(Action handler);

void InvokeOnEndDrag(Action handler)

void NotifyObjectChanged(string sourceId, string objectReference)

`IDisposable BeginEdit(string sourceId, IReadOnlyList<string> objectReferences)`

`Task<IDisposable> BeginEditAsync(string sourceId, IReadOnlyList<string> objectReferences)`

void Focus(string sourceId, string objectReference)

`Task<bool?> ShowReuseObjectDialog(string objectReference, bool addingToLibrary)`

`Task<bool?> ShowEditLinkedObjectDialog(string objectReference, bool isReindicating)`

IObjectRestriction

Properties

IObjectSelectionDescription

Properties

IObjectSource

Properties

ISelectionArgs

Properties