ActivityFunc<TResult> Class

Defines an activity delegate with no in arguments and one out argument of type Tresult.

System.Object
  System.Activities.ActivityDelegate
    System.Activities.ActivityFunc<TResult>

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

public sealed class ActivityFunc<TResult> : ActivityDelegate

Type Parameters

TResult

The type of the out argument of the activity delegate.

The ActivityFunc<TResult> type exposes the following members.

  NameDescription
Public methodActivityFunc<TResult>Creates a new instance of the ActivityFunc<TResult> class.
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  NameDescription
Public propertyDisplayNameGets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. (Inherited from ActivityDelegate.)
Public propertyHandlerGets or sets the activity that is represented by this ActivityDelegate. (Inherited from ActivityDelegate.)
Public propertyResultGets or sets the out argument of the activity delegate.
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  NameDescription
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Protected methodGetResultArgumentWhen implemented in a derived class, returns the DelegateOutArgument of the ActivityDelegate. (Inherited from ActivityDelegate.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodShouldSerializeDisplayNameIndicates whether the DisplayName property value should be serialized to XAML. (Inherited from ActivityDelegate.)
Public methodToStringReturns a String representation of the ActivityDelegate that contains the DisplayName. (Inherited from ActivityDelegate.)
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The ActivityDelegate enables activity authors to expose callbacks with specific signatures that users of the activity can provide activity-based handlers for. ActivityFunc<TResult> is an ActivityDelegate that returns a value. The signature of the ActivityFunc<TResult> is specified as generic type arguments.

There are multiple generic versions of this type that take from 1 to 16 in arguments, plus the out argument, for the activity that is called. There are also ActivityAction types for activity delegates that do not return values.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

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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