StructuredCompositeActivityDesigner.ContainedDesigners Propiedad

Definición

Espacio de nombres:

System.Workflow.ComponentModel.Design

Ensamblado:

System.Workflow.ComponentModel.dll

Obtiene una colección de solo lectura genérica que contiene todos los diseñadores de actividad que son elementos secundarios de StructuredCompositeActivityDesigner.

public:
 virtual property System::Collections::ObjectModel::ReadOnlyCollection<System::Workflow::ComponentModel::Design::ActivityDesigner ^> ^ ContainedDesigners { System::Collections::ObjectModel::ReadOnlyCollection<System::Workflow::ComponentModel::Design::ActivityDesigner ^> ^ get(); };

public override System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Design.ActivityDesigner> ContainedDesigners { get; }

member this.ContainedDesigners : System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Design.ActivityDesigner>

Public Overrides ReadOnly Property ContainedDesigners As ReadOnlyCollection(Of ActivityDesigner)

Valor de propiedad

ReadOnlyCollection<ActivityDesigner>

Una colección ActivityDesigner de solo lectura que contiene los diseñadores secundarios.

Ejemplos

El ejemplo siguiente muestra la suma de una nueva bifurcación utilizando un diseñador basado fuera de de la clase CompositeActivityDesigner. Si CanInsertActivities devuelve verdadero, una nueva bifurcación se crea utilizando el método InsertActivities. Un objeto ConnectorHitTestInfo se crea como un parámetro del método InsertActivities. Cuando esto está finalizado, el método EnsureVisibleContainedDesigner se utiliza para garantizar que la bifurcación recientemente agregada se muestre en el Workflow Designer accediendo a un objeto único en la colección ContainedDesigners.

protected override CompositeActivity OnCreateNewBranch()
{
    return new ParallelIfBranch();
}

private void OnAddBranch(object sender, EventArgs e)
{
    CompositeActivity activity1 = this.OnCreateNewBranch();
    CompositeActivity activity2 = base.Activity as CompositeActivity;

    if ((activity2 != null) && (activity1 != null))
    {
        int num1 = this.ContainedDesigners.Count;
        Activity[] activityArray1 = new Activity[] { activity1 };

        if (CanInsertActivities(new ConnectorHitTestInfo(this, HitTestLocations.Designer, activity2.Activities.Count),
            new List<Activity>(activityArray1).AsReadOnly()))
        {
            CompositeActivityDesigner.InsertActivities(this,
                new ConnectorHitTestInfo(this, HitTestLocations.Designer, activity2.Activities.Count),
                new List<Activity>(activityArray1).AsReadOnly(),
                string.Format("Adding branch {0}", activity1.GetType().Name));

            if ((this.ContainedDesigners.Count > num1) && (this.ContainedDesigners.Count > 0))
            {
                this.ContainedDesigners[this.ContainedDesigners.Count - 1].EnsureVisible();
            }
        }
    }
}

Protected Overrides Function OnCreateNewBranch() As CompositeActivity
    Return New ParallelIfBranch()
End Function

Private Sub OnAddBranch(ByVal sender As Object, ByVal e As EventArgs)
    Dim activity1 As CompositeActivity = Me.OnCreateNewBranch()
    Dim activity2 As CompositeActivity = CType(MyBase.Activity, CompositeActivity)

    If (activity2 IsNot Nothing) And (activity1 IsNot Nothing) Then

        Dim num1 As Integer = Me.ContainedDesigners.Count
        Dim activityArray1() As Activity = {activity1}

        If (CanInsertActivities(New ConnectorHitTestInfo(Me, HitTestLocations.Designer, activity2.Activities.Count), _
            New List(Of Activity)(activityArray1).AsReadOnly())) Then

            CompositeActivityDesigner.InsertActivities(Me, _
                New ConnectorHitTestInfo(Me, HitTestLocations.Designer, activity2.Activities.Count), _
                New List(Of Activity)(activityArray1).AsReadOnly(), _
                String.Format("Adding branch 0}", activity1.GetType().Name))

            If (Me.ContainedDesigners.Count > num1) And (Me.ContainedDesigners.Count > 0) Then
                Me.ContainedDesigners(Me.ContainedDesigners.Count - 1).EnsureVisible()
            End If
        End If
    End If
End Sub