DependencyObject.SetValue(DependencyProperty, Object) 方法

定义

命名空间:

System.Workflow.ComponentModel

程序集:

System.Workflow.ComponentModel.dll

将 DependencyProperty 的值设置为对象。

public:
 void SetValue(System::Workflow::ComponentModel::DependencyProperty ^ dependencyProperty, System::Object ^ value);

public void SetValue (System.Workflow.ComponentModel.DependencyProperty dependencyProperty, object value);

member this.SetValue : System.Workflow.ComponentModel.DependencyProperty * obj -> unit

Public Sub SetValue (dependencyProperty As DependencyProperty, value As Object)

参数

dependencyProperty

DependencyProperty

要设置的 DependencyProperty。

value

Object

要将值设置为的 Object。

示例

下面的代码演示如何在依赖对象中使用 SetValue 设置依赖项属性。

System.Workflow.ComponentModel.ActivityBind activityBind1 = new System.Workflow.ComponentModel.ActivityBind();
this.SampleReplicatorChildActivity1 = new SampleReplicatorChildActivity();
this.ReplicatorWork = new System.Workflow.Activities.ReplicatorActivity();
//
// SampleReplicatorChildActivity1
//
this.SampleReplicatorChildActivity1.InstanceData = null;
this.SampleReplicatorChildActivity1.Name = "SampleReplicatorChildActivity1";
activityBind1.Name = "SimpleReplicatorWorkflow";
activityBind1.Path = "ChildData";
//
// ReplicatorWork
//
this.ReplicatorWork.Activities.Add(this.SampleReplicatorChildActivity1);
this.ReplicatorWork.ExecutionType = System.Workflow.Activities.ExecutionType.Sequence;
this.ReplicatorWork.Name = "ReplicatorWork";
this.ReplicatorWork.ChildInitialized += new System.EventHandler<System.Workflow.Activities.ReplicatorChildEventArgs>(this.ChildInitializer);
this.ReplicatorWork.SetBinding(System.Workflow.Activities.ReplicatorActivity.InitialChildDataProperty, ((System.Workflow.ComponentModel.ActivityBind)(activityBind1)));

Dim activityBind1 As New System.Workflow.ComponentModel.ActivityBind()
Me.SampleReplicatorChildActivity1 = New SampleReplicatorChildActivity()
Me.ReplicatorWork = New System.Workflow.Activities.ReplicatorActivity()
' 
' SampleReplicatorChildActivity1
' 
Me.SampleReplicatorChildActivity1.InstanceData = Nothing
Me.SampleReplicatorChildActivity1.Name = "SampleReplicatorChildActivity1"
activityBind1.Name = "SimpleReplicatorWorkflow"
activityBind1.Path = "ChildData"
' 
' ReplicatorWork
' 
Me.ReplicatorWork.Activities.Add(Me.SampleReplicatorChildActivity1)
Me.ReplicatorWork.ExecutionType = System.Workflow.Activities.ExecutionType.Sequence
Me.ReplicatorWork.Name = "ReplicatorWork"
AddHandler Me.ReplicatorWork.ChildInitialized, AddressOf Me.ChildInitializer
Me.ReplicatorWork.SetBinding(System.Workflow.Activities.ReplicatorActivity.InitialChildDataProperty, activityBind1)

注解

SetBinding 设置依赖属性的绑定。

SetValue 将值直接设置为 DependencyProperty（类似地，AddHandler 直接将处理程序添加到类型事件的属性）。

为同一个属性调用这些方法时，它们是互斥的。 如果调用了 SetBinding，则忽略先前使用 SetValue（在事件中为 AddHandler）设置的值。 采用相反的方法时，情况也是如此：SetValue (AddHandler) 将重置使用 SetBinding 分配的绑定。