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PickBranch Class

A potential path of execution within a Pick activity.

System::Object
  System.Activities.Statements::PickBranch

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

[ContentPropertyAttribute(L"Action")]
public ref class PickBranch sealed

The PickBranch type exposes the following members.

  NameDescription
Public methodPickBranchCreates a new instance of the PickBranch activity.
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  NameDescription
Public propertyActionThe Activity to execute if this branch is triggered for execution.
Public propertyDisplayNameThe name of this branch to be displayed in the activity designer.
Public propertyTriggerThe activity whose completion activates this pick branch.
Public propertyVariablesThe collection of user-defined variables associated with this activity.
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  NameDescription
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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A PickBranch contains a Trigger and an Action. At the beginning of a Pick element’s execution, all the trigger activities from all PickBranch elements are scheduled. When the first activity completes, the corresponding action activity is scheduled, and all other trigger activities are canceled.

The following code sample demonstrates creating a PickBranch 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;
}


.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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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