Table of Contents

Class QuestionActivity

Namespace
ActivityPub.Types.AS.Extended.Activity
Assembly
ActivityPub.Types.dll

Represents a question being asked. Question objects are an extension of IntransitiveActivity. That is, the Question object is an Activity, but the direct object is the question itself and therefore it would not contain an object property. Either of the anyOf and oneOf properties MAY be used to express possible answers, but a Question object MUST NOT have both properties.

public class QuestionActivity : ASIntransitiveActivity, IASModel<ASType, ASTypeEntity>, IASModel<ASType>, IASModel<ASObject, ASObjectEntity, ASType>, IASModel<ASObject, ASObjectEntity>, IASModel<ASObject>, IASModel<ASActivity, ASActivityEntity, ASObject>, IASModel<ASActivity, ASActivityEntity>, IASModel<ASActivity>, IASModel<ASIntransitiveActivity, ASIntransitiveActivityEntity, ASActivity>, IASModel<ASIntransitiveActivity, ASIntransitiveActivityEntity>, IASModel<ASIntransitiveActivity>, IASModel<QuestionActivity, QuestionActivityEntity, ASIntransitiveActivity>, IASModel<QuestionActivity, QuestionActivityEntity>, IASModel<QuestionActivity>
Inheritance
QuestionActivity
Implements
Inherited Members

Constructors

QuestionActivity()

Constructs a new instance and attaches it to a new, empty type graph.

public QuestionActivity()

QuestionActivity(ASType)

Constructs a new instance and extends an existing type graph from a provided model.

public QuestionActivity(ASType existingGraph)

Parameters

existingGraph ASType
See Also
Extend<TModel, TEntity>()

QuestionActivity(TypeMap, QuestionActivityEntity?) 

public QuestionActivity(TypeMap typeMap, QuestionActivityEntity? entity)

Parameters

typeMap TypeMap
entity QuestionActivityEntity

QuestionActivity(TypeMap, bool)

Constructs a new instance from an existing type graph. The existing graph is either extended or wrapped, depending on the value of 

isExtending
public QuestionActivity(TypeMap typeMap, bool isExtending = true)

Parameters

typeMap TypeMap
isExtending bool

Remarks

All overrides MUST call this using 

base(typeMap, false)

Exceptions

InvalidOperationException

If 

extendGraph
is true and the entity type already exists in the graph
InvalidOperationException

If 

extendGraph
is true and the entity requires another entity that is missing from the graph
InvalidCastException

If 

extendGraph
is false and the object is not of type 
TEntity
See Also
ProjectTo<TModel, TEntity>(bool)

Fields

QuestionType

ActivityStreams type name for "Question" types.

[PublicAPI]
public const string QuestionType = "Question"

Field Value

string

Properties

AllowMultiple

Indicates whether this question accepts multiple responses. If true, then multiple options can be selected. If false (default), then only one option may be selected.

public bool AllowMultiple { get; set; }

Property Value

bool

Remarks

This is a synthetic field implemented to simplify parts of the Question schema. It does not exist in the ActivityStreams specification.

This field controls how the question is serialized. If true, then Options will map to "anyOf". Otherwise, it maps to "oneOf".

Closed

Indicates that a question has been closed, and answers are no longer accepted.

public FlagWithTimestamp? Closed { get; set; }

Property Value

FlagWithTimestamp

Remarks

We don't support the Object or Link forms, because what would that even mean??

See Also

Entity 

private QuestionActivityEntity Entity { get; }

Property Value

QuestionActivityEntity

Options

The list of options for this Question.

public LinkableList<ASObject>? Options { get; set; }

Property Value

LinkableList<ASObject>

Remarks

This is a semi-synthetic property. It does not exist in the ActivityStreams specification, but encapsulates the usage of both "oneOf" and "anyOf".

See Also

Explicit Interface Implementations

IASModel<QuestionActivity>.ASTypeName

AS type name of this entity. For the full list of names in the object graph, use ASTypes.

static string IASModel<QuestionActivity>.ASTypeName { get; }

Returns

string

IASModel<QuestionActivity>.FromGraph(TypeMap)

Constructs an instance from this type from a pre-populated type graph. The provided TypeMap instance is guaranteed to include an instance of type EntityType.

static QuestionActivity IASModel<QuestionActivity>.FromGraph(TypeMap typeMap)

Parameters

typeMap TypeMap

Returns

QuestionActivity
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