CompositeActivityDesigner.InsertActivities 方法

定义

命名空间:

System.Workflow.ComponentModel.Design

程序集:

System.Workflow.ComponentModel.dll

将活动插入设计器。

重载

InsertActivities(HitTestInfo, ReadOnlyCollection<Activity>)	将指定活动插入设计器中的指定位置。
InsertActivities(CompositeActivityDesigner, HitTestInfo, ReadOnlyCollection<Activity>, String)	使用事务将活动插入设计器中的指定位置。

InsertActivities(HitTestInfo, ReadOnlyCollection<Activity>)

将指定活动插入设计器中的指定位置。

public:
 virtual void InsertActivities(System::Workflow::ComponentModel::Design::HitTestInfo ^ insertLocation, System::Collections::ObjectModel::ReadOnlyCollection<System::Workflow::ComponentModel::Activity ^> ^ activitiesToInsert);

public virtual void InsertActivities (System.Workflow.ComponentModel.Design.HitTestInfo insertLocation, System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Activity> activitiesToInsert);

abstract member InsertActivities : System.Workflow.ComponentModel.Design.HitTestInfo * System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Activity> -> unit
override this.InsertActivities : System.Workflow.ComponentModel.Design.HitTestInfo * System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Activity> -> unit

Public Overridable Sub InsertActivities (insertLocation As HitTestInfo, activitiesToInsert As ReadOnlyCollection(Of Activity))

参数

insertLocation

HitTestInfo

设计器中要插入活动的位置。

activitiesToInsert

ReadOnlyCollection<Activity>

要插入的活动的列表。

注解

使用 InsertActivities 可将一系列活动插入指定位置。

调用 InsertActivities 之前，使用 CanInsertActivities 可确保可以插入指定的活动。

InsertActivities(CompositeActivityDesigner, HitTestInfo, ReadOnlyCollection<Activity>, String)

使用事务将活动插入设计器中的指定位置。

public:
 static void InsertActivities(System::Workflow::ComponentModel::Design::CompositeActivityDesigner ^ compositeActivityDesigner, System::Workflow::ComponentModel::Design::HitTestInfo ^ insertLocation, System::Collections::ObjectModel::ReadOnlyCollection<System::Workflow::ComponentModel::Activity ^> ^ activitiesToInsert, System::String ^ undoTransactionDescription);

public static void InsertActivities (System.Workflow.ComponentModel.Design.CompositeActivityDesigner compositeActivityDesigner, System.Workflow.ComponentModel.Design.HitTestInfo insertLocation, System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Activity> activitiesToInsert, string undoTransactionDescription);

static member InsertActivities : System.Workflow.ComponentModel.Design.CompositeActivityDesigner * System.Workflow.ComponentModel.Design.HitTestInfo * System.Collections.ObjectModel.ReadOnlyCollection<System.Workflow.ComponentModel.Activity> * string -> unit

Public Shared Sub InsertActivities (compositeActivityDesigner As CompositeActivityDesigner, insertLocation As HitTestInfo, activitiesToInsert As ReadOnlyCollection(Of Activity), undoTransactionDescription As String)

参数

compositeActivityDesigner

CompositeActivityDesigner

将插入活动的设计器。

insertLocation

HitTestInfo

设计器中将插入活动的位置。

activitiesToInsert

ReadOnlyCollection<Activity>

要插入的活动的列表。

undoTransactionDescription

String

由插入操作创建的设计器事务的说明。

示例

下面的示例演示如何使用 CompositeActivityDesigner 类的基于设计器的中断来添加新的分支。 如果 CanInsertActivities 返回 true，则使用 InsertActivities 方法创建一个新分支。

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

注解

使用 InsertActivities 可将一系列活动插入复合活动。

调用 InsertActivities 之前，使用 CanInsertActivities 可确保可以插入指定的一系列活动。