System.Activities Namespace

An abstract base class used to create composite activities from pre-existing Activity objects.

An abstract base class used to create composite activities from pre-existing Activity objects, which specifies a result type using the activity's type specifier.

Defines an activity delegate that has no in arguments and does not return a value.

Defines an activity delegate that has one in argument and does not return a value.

Defines an activity delegate that has two in arguments and does not return a value.

Defines an activity delegate that has three in arguments and does not return a value.

Defines an activity delegate that has four in arguments and does not return a value.

Defines an activity delegate that has five in arguments and does not return a value.

Defines an activity delegate that has six in arguments and does not return a value.

Defines an activity delegate that has seven in arguments and does not return a value.

Defines an activity delegate that has eight in arguments and does not return a value.

Defines an activity delegate that has nine in arguments and does not return a value.

Defines an activity delegate that has ten in arguments and does not return a value.

Defines an activity delegate that has eleven in arguments and does not return a value.

Defines an activity delegate that has twelve in arguments and does not return a value.

Defines an activity delegate that has thirteen in arguments and does not return a value.

Defines an activity delegate that has fourteen in arguments and does not return a value.

Defines an activity delegate that has fifteen in arguments and does not return a value.

Defines an activity delegate that has sixteen in arguments and does not return a value.

Provides property data for a workflow activity.

Provides property data for a generic workflow activity.

The base class for context classes that represent the execution environment of an activity.

Represents an activity-based callback.

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

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with three in arguments of type T and one out argument of type TResult.

Defines an activity delegate with four in arguments of type T and one out argument of type TResult.

Defines an activity delegate with five in arguments of type T and one out argument of type TResult.

Defines an activity delegate with six in arguments of type T and one out argument of type TResult.

Defines an activity delegate with seven in arguments of type T and one out argument of type TResult.

Defines an activity delegate with eight in arguments of type T and one out argument of type TResult.

Defines an activity delegate with nine in arguments of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Defines an activity delegate with one in argument of type T and one out argument of type TResult.

Represents the instance state of an activity at runtime.

Represents a property reference that is used in ActivityBuilder and that maps to a PropertyReferenceExtension<T> in an x:Class activity when the x:Class activity is deserialized into an ActivityBuilder.

Retrieves the value or type of an activity out argument. This class is abstract and derives from Activity class.

The abstract base class that represents a binding terminal that supports the flow of data into and out of an activity.

Manages asynchronous code activity execution from start to completion. This is an abstract class.

Manages asynchronous code activity execution, for an activity of a specified type, from start to completion. This is an abstract and generic class.

The execution context for an asynchronous activity.

Represents a point at which a workflow or activity can passively wait to be resumed.

Scopes a set of Bookmark objects that are categorized as operating under the same protocol.

A System.Handle used to manage the lifetime of a BookmarkScope.

An abstract class for creating a custom activity with imperative behavior defined with the Execute(CodeActivityContext) method, which gives access to variable and argument resolution and extensions.

An abstract class for creating a custom activity with imperative behavior defined in the Execute(CodeActivityContext) method, giving access to variable and argument resolution and extensions.

Extends ActivityContext and provides additional functionality for CodeActivity.

The abstract base class that represents a binding terminal that supports the flow of data into and out of an ActivityDelegate.

The abstract base class that represents a binding terminal that supports the flow of data into an ActivityDelegate.

A binding terminal that represents the flow of data into an ActivityDelegate.

The abstract base class that represents a binding terminal that supports the flow of data out of an ActivityDelegate.

A binding terminal that represents the flow of data out of an ActivityDelegate.

Provides an object model that allows you to construct activities dynamically that interface with the WF designer and runtime using ICustomTypeDescriptor.

Provides an approach that is consistent with the document object model (DOM), which constructs activities dynamically that interface with the WF designer and workflow runtime using ICustomTypeDescriptor.

Represents a property of a DynamicActivity that is created at runtime and executes in the ActivityExecutionContext.

Specifies exception persistence.

Adds supplementary information to a bookmark that enables it to access a subset of its scope handles, excluding handles that are not required.

Represents the collection of properties at a particular scope.

Represents a type that has its lifetime controlled by the workflow runtime.

Represents the initialization environment of a Handle.

The abstract base class that represents a binding terminal that supports the flow of data into an activity.

A binding terminal that represents the flow of data into an activity.

The abstract base class that represents a binding terminal that supports the flow of data into and out of an activity.

A binding terminal that represents the flow of data into and out of an activity.

Handles exceptions that occur when a workflow is not valid.

Provides data for the InvokeCompleted event.

Provides a reference to a value used by an Argument or Variable.

Provides a typed reference to a value used by an Argument or Variable.

Provides a mechanism by which a Location can be resolved at runtime.

Provides a representation of the environment of variables and arguments that is available to an activity at runtime.

Abstract base class for custom activities that implement execution logic using the Execute(NativeActivityContext) method, which has full access to the runtime's features.

Abstract base class for custom activities that implement execution logic using the Execute(NativeActivityContext) method, that has full access to the runtime's features.

Represents the execution environment of an activity that is being aborted.

The execution context for a NativeActivity.

Represents the execution environment of a NativeActivity when it is handling an exception thrown by a child activity.

The execution context for a NativeActivity that needs to provide the runtime with a transaction.

Manages the lifetime of a no-persist block.

The abstract base class that represents a binding terminal that supports the flow of data out of an activity.

A binding terminal that represents the flow of data out of an activity.

Provides a method for indicating which combinations of arguments are valid in an activity.

Provides access to the current collection of workflow execution properties.

Application element on which it is valid to apply an argument.

Describes the characteristics of an argument of an activity to the runtime.

Describes the characteristics of a DelegateArgument to the runtime.

Provides access to the run-time transaction in a workflow instance.

The exception that is thrown when a workflow or activity is in an invalid state.

The abstract base class from which the workflow data member support class Variable<T> derives.

Represents a variable in a workflow.

Specifies information about a version mismatch exception.

Provides a host for a single instance of a workflow.

Provides data about an aborted workflow instance.

Represents the exception that is thrown when an operation on a workflow instance is not valid because the instance has been aborted.

Provides information about a workflow instance that has completed its execution.

Represents the exception that is thrown when an operation on a workflow instance is not valid because the instance has completed.

A base class for events associated with a WorkflowApplication .

Provides the base class for handling an error that occurs during the execution of a workflow application.

Holds information about the workflow instance that has become idle.

Specifies information about a workflow application instance.

An exception that is thrown when an operation on a workflow instance is not valid because the instance has been terminated.

Provides information about an unhandled exception that occurred in a workflow instance.

An exception that is thrown when an operation on a workflow instance is invalid because the instance has been unloaded.

Represents the data context of the current workflow environment and provides a bridge to bring workflow arguments and variables into the scope of Windows Presentation Foundation (WPF) data binding.

Maps a persisted workflow instance to its corresponding workflow definition.

Provides methods for working with the runtime metadata for an activity tree.

Provides a means for invoking a workflow as if it were a method call.

Represents the set of arguments, child activities, variables, and delegates that a configured Activity introduces to the execution environment.

Represents the set of arguments that a configured CodeActivity introduces to the execution environment.

Specifies information about a public environment accessor.

Represents the set of arguments, child activities, variables, and delegates that a configured NativeActivity introduces to the execution environment.

Provides execution properties with a mechanism for configuring thread local storage before and after the work items of the associated activity.

Allows a workflow execution property to provide custom registration and un-registration logic.

Describes the state of an activity instance.

Specifies the direction of data flow for an Argument.

Specifies the options for a Bookmark.

Defines an enumeration whose members represent the outcome of bookmark scheduling requests.

Specifies the action that occurs when a workflow becomes idle when persistence is allowed.

Specifies the action that occurs when an exception escapes the root of a workflow.

Specifies the way the workflow runtime treats Variable objects.

Specifies the workflow identity filter.

Represents the method that is called when a Bookmark is resumed.

The method that is called when an activity completes.

The method that is called when an activity completes.

Represents the method that is called when an ActivityDelegate completes.

Represents the method that is called when a scheduled activity or one of its children enters the Faulted state.