ActivityDelegate Class

.NET Framework (current version)
 

Represents an activity-based callback.

Namespace:   System.Activities
Assembly:  System.Activities (in System.Activities.dll)

System.Object
  System.Activities.ActivityDelegate
    System.Activities.ActivityAction
    System.Activities.ActivityAction<'T>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14, 'T15>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14, 'T15, 'T16>
    System.Activities.ActivityAction<'T1, 'T2>
    System.Activities.ActivityAction<'T1, 'T2, 'T3>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8>
    System.Activities.ActivityAction<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9>
    System.Activities.ActivityFunc<'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14, 'T15, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'T9, 'T10, 'T11, 'T12, 'T13, 'T14, 'T15, 'T16, 'TResult>
    System.Activities.ActivityFunc<'T, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'TResult>
    System.Activities.ActivityFunc<'T1, 'T2, 'T3, 'T4, 'T5, 'T6, 'T7, 'T8, 'TResult>

[<AbstractClass>]
[<ContentPropertyAttribute("Handler")>]
type ActivityDelegate = class end

NameDescription
System_CAPS_protmethodActivityDelegate()

Called by derived class constructors to initialize the object.

NameDescription
System_CAPS_pubpropertyDisplayName

Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking.

System_CAPS_pubpropertyHandler

Gets or sets the activity that is represented by this ActivityDelegate.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_protmethodGetResultArgument()

When implemented in a derived class, returns the DelegateOutArgument of the ActivityDelegate.

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnGetRuntimeDelegateArguments(IList<RuntimeDelegateArgument>)

Supplies a list of runtime arguments for the ActivityDelegate.

System_CAPS_pubmethodShouldSerializeDisplayName()

Indicates whether the DisplayName property value should be serialized to XAML.

System_CAPS_pubmethodToString()

Returns a String representation of the ActivityDelegate that contains the DisplayName.(Overrides Object.ToString().)

Activity delegates enable activity authors to expose callbacks with specific signatures that users of the activity can provide activity-based handlers for. There are two types of activity delegates: ActivityAction<'T> is used for invoking activities that do not have a return value, and ActivityFunc<'TResult> is used for invoking activities that do have a return value. Activity delegates are useful in scenarios where a child activity must be constrained to having a certain signature.

.NET Framework
Available since 4.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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