ThrowActivity Constructors

Definition

Namespace:

System.Workflow.ComponentModel

Assembly:

System.Workflow.ComponentModel.dll

Initializes a new instance of the ThrowActivity class.

Overloads

ThrowActivity()	Initializes a new instance of the ThrowActivity class.
ThrowActivity(String)	Initializes a new instance of the ThrowActivity class, and initializes its name.

ThrowActivity()

Initializes a new instance of the ThrowActivity class.

public:
 ThrowActivity();

public ThrowActivity ();

Public Sub New ()

Examples

The following code shows the use of a single throw activity in a workflow to implement exception handling. This example includes invoking the constructor. This code example is part of the Throw SDK sample and is from the ThrowWorkflow.cs file. For more information, see Using Throw.

public sealed partial class ThrowWorkflow : SequentialWorkflowActivity
{
    [System.Diagnostics.DebuggerNonUserCode()]
    private void InitializeComponent()
    {
        this.CanModifyActivities = true;
        System.Workflow.ComponentModel.ActivityBind activitybind1 = new System.Workflow.ComponentModel.ActivityBind();
        this.throwActivity1 = new System.Workflow.ComponentModel.ThrowActivity();
        activitybind1.Name = "ThrowWorkflow";
        activitybind1.Path = "ThrownException";
        //
        // throwActivity1
        //
        this.throwActivity1.Name = "throwActivity1";
        this.throwActivity1.SetBinding(System.Workflow.ComponentModel.ThrowActivity.FaultProperty, ((System.Workflow.ComponentModel.ActivityBind)(activitybind1)));
        //
        // ThrowWorkflow
        //
        this.Activities.Add(this.throwActivity1);
        this.Name = "ThrowWorkflow";
        this.CanModifyActivities = false;
    }

    private Exception thrownExceptionValue = new System.Exception("My Exception Message.");

    public Exception ThrownException
    {
        get { return thrownExceptionValue; }
        set { thrownExceptionValue = value; }
    }

    private ThrowActivity throwActivity1;
}

Partial Public NotInheritable Class ThrowWorkflow
    Inherits SequentialWorkflowActivity

    <System.Diagnostics.DebuggerNonUserCode()> _
                                        Private Sub InitializeComponent()

        Me.CanModifyActivities = True
        Dim activitybind1 As New System.Workflow.ComponentModel.ActivityBind()
        Me.throwActivity1 = New System.Workflow.ComponentModel.ThrowActivity()
        activitybind1.Name = "ThrowWorkflow"
        activitybind1.Path = "ThrownException"
        ' 
        ' throwActivity1
        ' 
        Me.throwActivity1.Name = "throwActivity1"
        Me.throwActivity1.SetBinding(System.Workflow.ComponentModel.ThrowActivity.FaultProperty, activitybind1)
        ' 
        ' ThrowWorkflow
        ' 
        Me.Activities.Add(Me.throwActivity1)
        Me.Name = "ThrowWorkflow"
        Me.CanModifyActivities = False

    End Sub

    Private thrownExceptionValue As New System.Exception("My Exception Message.")

    Public Property ThrownException() As Exception
        Get
            Return thrownExceptionValue
        End Get
        Set(ByVal value As Exception)
            thrownExceptionValue = value
        End Set
    End Property

    Private throwActivity1 As ThrowActivity

End Class

ThrowActivity(String)

Initializes a new instance of the ThrowActivity class, and initializes its name.

public:
 ThrowActivity(System::String ^ name);

public ThrowActivity (string name);

new System.Workflow.ComponentModel.ThrowActivity : string -> System.Workflow.ComponentModel.ThrowActivity

Public Sub New (name As String)

Parameters

name

String

The user-defined name of the activity.

Exceptions

ArgumentNullException

identifier is a null reference (Nothing in Visual Basic).