ActivityFunc(TResult) Class
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ActivityFunc<TResult> Class

.NET Framework (current version)
 

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

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

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

public sealed class ActivityFunc<TResult> : ActivityDelegate

Type Parameters

TResult

The type of the out argument of the activity delegate.

NameDescription
System_CAPS_pubmethodActivityFunc<TResult>()

Creates a new instance of the ActivityFunc<TResult> class.

NameDescription
System_CAPS_pubpropertyDisplayName

Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking.(Inherited from ActivityDelegate.)

System_CAPS_pubpropertyHandler

Gets or sets the activity that is represented by this ActivityDelegate.(Inherited from ActivityDelegate.)

System_CAPS_pubpropertyResult

Gets or sets the out argument of the activity delegate.

NameDescription
System_CAPS_pubmethodEquals(Object)

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

System_CAPS_pubmethodGetType()

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

System_CAPS_pubmethodShouldSerializeDisplayName()

Indicates whether the DisplayName property value should be serialized to XAML.(Inherited from ActivityDelegate.)

System_CAPS_pubmethodToString()

Returns a String representation of the ActivityDelegate that contains the DisplayName.(Inherited from ActivityDelegate.)

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
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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