FrameworkElement.RegisterName(String, Object) 方法

定義

提供可簡化對 NameScope 註冊方法之存取的存取子 (Accessor)。Provides an accessor that simplifies access to the NameScope registration method.

public:
 void RegisterName(System::String ^ name, System::Object ^ scopedElement);
public void RegisterName (string name, object scopedElement);
member this.RegisterName : string * obj -> unit
Public Sub RegisterName (name As String, scopedElement As Object)

參數

name
String

要用於指定之「名稱-物件」對應的名稱。Name to use for the specified name-object mapping.

scopedElement
Object

對應的物件。Object for the mapping.

範例

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace Microsoft.Samples.Animation.AnimatingWithStoryboards
{

    public class ScopeExample : Page
    {
        
        private Storyboard myStoryboard;
        private StackPanel myMainPanel;
        private Button button1, button2;
        
        public ScopeExample()
        {
        
            this.Background = Brushes.White; 
            myMainPanel = new StackPanel();
            
            // Create a name scope for the stackpanel. 
            NameScope.SetNameScope(myMainPanel, new NameScope());
            
            myMainPanel.Background = Brushes.Orange;
              
            button1 = new Button();
            button1.Name = "Button1";
            
            // Register button1's name with myMainPanel.
            myMainPanel.RegisterName(button1.Name, button1);
            button1.Content = "Button 1";
            button1.Click += new RoutedEventHandler(button1Clicked);
            myMainPanel.Children.Add(button1);
            
            button2 = new Button();
            button2.Name = "Button2";
            
            // Register button2's name with myMainPanel.
            myMainPanel.RegisterName(button2.Name, button2);
            button2.Content = "Button 2";
            button2.Click += new RoutedEventHandler(button2Clicked);
            myMainPanel.Children.Add(button2);

            // Create some animations and a storyboard.
            DoubleAnimation button1WidthAnimation = 
                new DoubleAnimation(300, 200, new Duration(TimeSpan.FromSeconds(5)));
            Storyboard.SetTargetName(button1WidthAnimation, button1.Name);
            Storyboard.SetTargetProperty(button1WidthAnimation, new PropertyPath(Button.WidthProperty));

            DoubleAnimation button2WidthAnimation = 
                new DoubleAnimation(300, 200, new Duration(TimeSpan.FromSeconds(5)));
            Storyboard.SetTargetName(button2WidthAnimation, button2.Name);
            Storyboard.SetTargetProperty(button2WidthAnimation, new PropertyPath(Button.WidthProperty));
            
            DoubleAnimation heightAnimationWithoutTarget = 
                new DoubleAnimation(300, 200, new Duration(TimeSpan.FromSeconds(5)));
            Storyboard.SetTargetProperty(heightAnimationWithoutTarget, new PropertyPath(FrameworkElement.HeightProperty));                
            
            myStoryboard = new Storyboard();
            myStoryboard.Children.Add(button1WidthAnimation);
            myStoryboard.Children.Add(button2WidthAnimation);
            myStoryboard.Children.Add(heightAnimationWithoutTarget);
            
            this.Content = myMainPanel;
        }  

        private void button1Clicked(object sender, RoutedEventArgs args)
        {
        
            // Starts the animations. The animation without a specified 
            // target name, heightAnimationWithoutTarget, is applied to
            // myMainPanel.
            myStoryboard.Begin(myMainPanel);
        }
        
        private void button2Clicked(object sender, RoutedEventArgs args)
        {
        
            // Starts the animations. The animation without a specified 
            // target name, heightAnimationWithoutTarget, is applied to
            // button2.
            myStoryboard.Begin(button2);
        }        
    }
}

Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.Windows.Shapes

Namespace Microsoft.Samples.Animation.AnimatingWithStoryboards




    Public Class ScopeExample
        Inherits Page

        Private myStoryboard As Storyboard
        Private myMainPanel As StackPanel
        Private button1, button2 As Button

        Public Sub New()

            Me.Background = Brushes.White
            myMainPanel = New StackPanel()

            ' Create a name scope for the stackpanel. 
            NameScope.SetNameScope(myMainPanel, New NameScope())

            myMainPanel.Background = Brushes.Orange

            button1 = New Button()
            button1.Name = "Button1"

            ' Register button1's name with myMainPanel.
            myMainPanel.RegisterName(button1.Name, button1)
            button1.Content = "Button 1"
            AddHandler button1.Click, AddressOf button1Clicked
            myMainPanel.Children.Add(button1)

            button2 = New Button()
            button2.Name = "Button2"

            ' Register button2's name with myMainPanel.
            myMainPanel.RegisterName(button2.Name, button2)
            button2.Content = "Button 2"
            AddHandler button2.Click, AddressOf button2Clicked
            myMainPanel.Children.Add(button2)


            ' Create some animations and a storyboard.
            Dim button1WidthAnimation As New DoubleAnimation(300, 200, New Duration(TimeSpan.FromSeconds(5)))
            Storyboard.SetTargetName(button1WidthAnimation, button1.Name)
            Storyboard.SetTargetProperty(button1WidthAnimation, New PropertyPath(Button.WidthProperty))

            Dim button2WidthAnimation As New DoubleAnimation(300, 200, New Duration(TimeSpan.FromSeconds(5)))
            Storyboard.SetTargetName(button2WidthAnimation, button2.Name)
            Storyboard.SetTargetProperty(button2WidthAnimation, New PropertyPath(Button.WidthProperty))

            Dim heightAnimationWithoutTarget As New DoubleAnimation(300, 200, New Duration(TimeSpan.FromSeconds(5)))
            Storyboard.SetTargetProperty(heightAnimationWithoutTarget, New PropertyPath(FrameworkElement.HeightProperty))

            myStoryboard = New Storyboard()
            myStoryboard.Children.Add(button1WidthAnimation)
            myStoryboard.Children.Add(button2WidthAnimation)
            myStoryboard.Children.Add(heightAnimationWithoutTarget)

            Me.Content = myMainPanel

        End Sub


        Private Sub button1Clicked(ByVal sender As Object, ByVal args As RoutedEventArgs)

            ' Starts the animations. The animation without a specified 
            ' target name, heightAnimationWithoutTarget, is applied to
            ' myMainPanel.
            myStoryboard.Begin(myMainPanel)

        End Sub

        Private Sub button2Clicked(ByVal sender As Object, ByVal args As RoutedEventArgs)

            ' Starts the animations. The animation without a specified 
            ' target name, heightAnimationWithoutTarget, is applied to
            ' button2.
            myStoryboard.Begin(button2)

        End Sub

    End Class


End Namespace

備註

這個方法是呼叫的便利方法 RegisterNameThis method is a convenience method for calling RegisterName. 此實作為會檢查連續的父項目,直到找到適用的 NameScope 實作為(藉由尋找可執行檔元素找到) INameScopeThe implementation will check successive parent elements until it finds the applicable NameScope implementation, which is found by finding an element that implements INameScope. 如需有關名稱範圍的詳細資訊,請參閱 WPF XAML 名稱範圍For more information about namescopes, see WPF XAML Namescopes.

RegisterName 程式碼中建立應用程式時,需要呼叫才能正確地連結動畫分鏡腳本。Calling RegisterName is necessary in order to correctly hook up animation storyboards for applications when created in code. 這是因為其中一個主要的分鏡腳本屬性,會 TargetName 使用執行時間名稱查閱,而不是能夠參考目標元素。This is because one of the key storyboard properties, TargetName, uses a run-time name lookup instead of being able to take a reference to a target element. 即使該元素可透過程式碼的參考來存取,也是如此。This is true even if that element is accessible by reference from the code. 如需為何需要為腳本目標注冊名稱的詳細資訊,請參閱分鏡腳本 總覽For more information on why you need to register names for storyboard targets, see Storyboards Overview.

適用於

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