Pick Class
Provides event-based control flow modeling.
System.Activities.Activity
System.Activities.NativeActivity
System.Activities.Statements.Pick
Namespace: System.Activities.Statements
Assembly: System.Activities (in System.Activities.dll)
The Pick type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | Branches | The collection of PickBranch objects that the Pick activity potentially executes one of, based on incoming events. |
![]() | CacheId | Gets the identifier of the cache that is unique within the scope of the workflow definition. (Inherited from Activity.) |
![]() | DisplayName | Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. (Inherited from Activity.) |
![]() | Id | Gets an identifier that is unique in the scope of the workflow definition. (Inherited from Activity.) |
![]() | ImplementationVersion | Gets or sets the implementation version of the activity. (Inherited from NativeActivity.) |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | ShouldSerializeDisplayName | Indicates whether the DisplayName property should be serialized. (Inherited from Activity.) |
![]() | ToString | Returns a String that contains the Id and DisplayName of the Activity. (Inherited from Activity.) |
This activity behaves similarly to Switch in that it executes only one of several activities in response to events. The action chosen to be executed is defined by an event, chosen from a set of events.
The following code sample demonstrates creating a Pick activity. This example is from the Using the Pick Activity sample.
static Activity CreateWF() { Variable<string> name = new Variable<string>(); Sequence body = new Sequence { Variables = { name }, Activities = { new WriteLine { Text = "What is your name? (You have 5 seconds to answer)" }, new Pick { Branches = { new PickBranch { Trigger = new ReadString { Result = name, BookmarkName = bookmarkName }, Action = new WriteLine { Text = new InArgument<string>(env => "Hello " + name.Get(env)) } }, new PickBranch { Trigger = new Delay { Duration = TimeSpan.FromSeconds(5) }, Action = new WriteLine { Text = "Time is up." } } } } } }; return body; }
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
