FreeformActivityDesigner.AddConnector 메서드

정의

네임스페이스:

System.Workflow.ComponentModel.Design

어셈블리:

System.Workflow.ComponentModel.dll

커넥터를 FreeformActivityDesigner에 추가합니다.

public:
 System::Workflow::ComponentModel::Design::Connector ^ AddConnector(System::Workflow::ComponentModel::Design::ConnectionPoint ^ source, System::Workflow::ComponentModel::Design::ConnectionPoint ^ target);

public System.Workflow.ComponentModel.Design.Connector AddConnector (System.Workflow.ComponentModel.Design.ConnectionPoint source, System.Workflow.ComponentModel.Design.ConnectionPoint target);

member this.AddConnector : System.Workflow.ComponentModel.Design.ConnectionPoint * System.Workflow.ComponentModel.Design.ConnectionPoint -> System.Workflow.ComponentModel.Design.Connector

Public Function AddConnector (source As ConnectionPoint, target As ConnectionPoint) As Connector

매개 변수

source

ConnectionPoint

커넥터 그리기를 시작하는 ConnectionPoint 위치입니다.

target

ConnectionPoint

커넥터 그리기를 종료하는 ConnectionPoint 위치입니다.

반환

Connector

Connector에 추가된 FreeformActivityDesigner입니다.

예외

ArgumentNullException

source 또는 target에 null 참조(Visual Basic의 경우 Nothing)가 포함된 경우

ArgumentException

AssociatedDesigner 또는 source의 target 속성에 null 참조(Nothing)가 포함된 경우

InvalidOperationException

현재 FreeformActivityDesigner가 추가할 커넥터의 컨테이너가 아닌 경우

예제

다음 예제에서는 사용자 지정 활동 디자이너의 OnLayoutPosition 메서드에서 메서드를 사용하는 AddConnector 방법을 보여 줍니다.

class ProcessActvityDesigner : FreeformActivityDesigner
{
    private ConnectionPoint GetConnectionPoint(Activity activity, Int32 connectorIndex, DesignerEdges edge)
    {
        ActivityDesigner designer = null;

        if (activity != null && activity.Site != null)
        {
            IDesignerHost designerHost = activity.Site.GetService(typeof(IDesignerHost)) as IDesignerHost;
            if (designerHost != null)
                designer = designerHost.GetDesigner(activity) as ActivityDesigner;
        }
        return new ConnectionPoint(designer, edge, connectorIndex);
    }

    protected override void OnLayoutPosition(ActivityDesignerLayoutEventArgs e)
    {
        base.OnLayoutPosition(e);

        // Draw a connector between the first and second activities contained in
        // the sequence activity used by this designer
        if (this.IsRootDesigner)
        {
            CompositeActivity parentActivity = (CompositeActivity)this.Activity;
            ConnectionPoint sourcePoint = GetConnectionPoint(parentActivity.Activities[0], 1, DesignerEdges.Bottom);
            ConnectionPoint targetPoint = GetConnectionPoint(parentActivity.Activities[1], 0, DesignerEdges.Top);

            this.AddConnector(sourcePoint, targetPoint);
        }
    }

Class ProcessActvityDesigner
    Inherits System.Workflow.ComponentModel.Design.FreeformActivityDesigner


    Function GetConnectionPoint(ByVal activity As Activity, ByVal connectorIndex As Int32, ByVal edge As DesignerEdges) As ConnectionPoint

        Dim designer As ActivityDesigner = Nothing

        If Activity IsNot Nothing And Activity.Site IsNot Nothing Then

            Dim designerHost As IDesignerHost = activity.Site.GetService(GetType(IDesignerHost))
            If designerHost IsNot Nothing Then
                designer = CType(designerHost.GetDesigner(activity), ActivityDesigner)
            End If
        End If

        Return New ConnectionPoint(designer, edge, connectorIndex)
    End Function


    Protected Overrides Sub OnLayoutPosition(ByVal e As ActivityDesignerLayoutEventArgs)

        MyBase.OnLayoutPosition(e)

        ' Draw a connector between the first and second activities contained in 
        ' the sequence activity used by me designer
        If Me.IsRootDesigner Then

            Dim parentActivity As CompositeActivity = CType(Me.Activity, CompositeActivity)
            Dim sourcePoint As ConnectionPoint = GetConnectionPoint(parentActivity.Activities(0), 1, DesignerEdges.Bottom)
            Dim targetPoint As ConnectionPoint = GetConnectionPoint(parentActivity.Activities(1), 0, DesignerEdges.Top)

            Me.AddConnector(sourcePoint, targetPoint)
        End If
    End Sub

End Class

설명

AddConnector 는 사용자가 .에 추가할 Connector 때 호출됩니다 FreeformActivityDesigner.