如何：在腳本開始後進行控制
這個範例示範如何在程式碼啟動之後，使用程式碼來控制 Storyboard。 若要在 XAML 中控制分鏡腳本，請使用 Trigger 和 TriggerAction 物件；例如，請參閱在分鏡腳本啟動時使用事件觸發程序控制分鏡腳本。
若要啟動分鏡腳本，您可以使用其 Begin 方法，將分鏡腳本的動畫散發至其建立動畫的屬性，並啟動分鏡腳本。
若要讓分鏡腳本成為可控，您可以使用 Begin 方法，並將 true 指定為第二個參數。 然後，您可以使用分鏡腳本的互動式方法，來暫停、繼續、搜尋、停止、加速或放慢分鏡腳本，或將分鏡腳本推進到其填滿期間。 以下是分鏡腳本互動式方法的清單：
Pause (部分機器翻譯)：暫停分鏡腳本。
Resume (英文)：繼續暫停的分鏡腳本。
SetSpeedRatio：設定分鏡腳本的互動速度。
Seek：搜尋指定位置的分鏡腳本。
SeekAlignedToLastTick：在指定的位置搜尋分鏡腳本。 不同於 Seek 方法，會在下一個刻度之前處理此作業。
SkipToFill (英文)：將分鏡腳本推進到其填滿期間 (如果有的話)。
Stop (部分機器翻譯)：停止分鏡腳本。
在下列範例中，會使用數個分鏡腳本方法，以互動方式控制分鏡腳本。
注意
若要查看搭配 XAML 使用觸發程序控制分鏡腳本的範例，請參閱在分鏡腳本啟動時使用事件觸發程序控制分鏡腳本。
範例
/*
This example shows how to control
a storyboard after it has started.
*/
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Windows.Media.Animation;
namespace Microsoft.Samples.Animation.TimingBehaviors
{
public partial class ControlStoryboardExample : Page
{
private Storyboard myStoryboard;
public ControlStoryboardExample()
{
// Create a name scope for the page.
NameScope.SetNameScope(this, new NameScope());
this.WindowTitle = "Controlling a Storyboard";
this.Background = Brushes.White;
StackPanel myStackPanel = new StackPanel();
myStackPanel.Margin = new Thickness(20);
// Create a rectangle.
Rectangle myRectangle = new Rectangle();
myRectangle.Width = 100;
myRectangle.Height = 20;
myRectangle.Margin = new Thickness(12,0,0,5);
myRectangle.Fill = new SolidColorBrush(Color.FromArgb(170, 51, 51, 255));
myRectangle.HorizontalAlignment = HorizontalAlignment.Left;
myStackPanel.Children.Add(myRectangle);
// Assign the rectangle a name by
// registering it with the page, so that
// it can be targeted by storyboard
// animations.
this.RegisterName("myRectangle", myRectangle);
//
// Create an animation and a storyboard to animate the
// rectangle.
//
DoubleAnimation myDoubleAnimation =
new DoubleAnimation(100, 500, new Duration(TimeSpan.FromSeconds(5)));
Storyboard.SetTargetName(myDoubleAnimation, "myRectangle");
Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath(Rectangle.WidthProperty));
myStoryboard = new Storyboard();
myStoryboard.Children.Add(myDoubleAnimation);
//
// Create some buttons to control the storyboard
// and a panel to contain them.
//
StackPanel buttonPanel = new StackPanel();
buttonPanel.Orientation = Orientation.Horizontal;
Button beginButton = new Button();
beginButton.Content = "Begin";
beginButton.Click += new RoutedEventHandler(beginButton_Clicked);
buttonPanel.Children.Add(beginButton);
Button pauseButton = new Button();
pauseButton.Content = "Pause";
pauseButton.Click +=new RoutedEventHandler(pauseButton_Clicked);
buttonPanel.Children.Add(pauseButton);
Button resumeButton = new Button();
resumeButton.Content = "Resume";
resumeButton.Click +=new RoutedEventHandler(resumeButton_Clicked);
buttonPanel.Children.Add(resumeButton);
Button skipToFillButton = new Button();
skipToFillButton.Content = "Skip to Fill";
skipToFillButton.Click +=new RoutedEventHandler(skipToFillButton_Clicked);
buttonPanel.Children.Add(skipToFillButton);
Button setSpeedRatioButton = new Button();
setSpeedRatioButton.Content = "Triple Speed";
setSpeedRatioButton.Click +=new RoutedEventHandler(setSpeedRatioButton_Clicked);
buttonPanel.Children.Add(setSpeedRatioButton);
Button stopButton = new Button();
stopButton.Content = "Stop";
stopButton.Click +=new RoutedEventHandler(stopButton_Clicked);
buttonPanel.Children.Add(stopButton);
myStackPanel.Children.Add(buttonPanel);
this.Content = myStackPanel;
}
// Begins the storyboard.
private void beginButton_Clicked(object sender, RoutedEventArgs args)
{
// Specifying "true" as the second Begin parameter
// makes this storyboard controllable.
myStoryboard.Begin(this, true);
}
// Pauses the storyboard.
private void pauseButton_Clicked(object sender, RoutedEventArgs args)
{
myStoryboard.Pause(this);
}
// Resumes the storyboard.
private void resumeButton_Clicked(object sender, RoutedEventArgs args)
{
myStoryboard.Resume(this);
}
// Advances the storyboard to its fill period.
private void skipToFillButton_Clicked(object sender, RoutedEventArgs args)
{
myStoryboard.SkipToFill(this);
}
// Updates the storyboard's speed.
private void setSpeedRatioButton_Clicked(object sender, RoutedEventArgs args)
{
// Makes the storyboard progress three times as fast as normal.
myStoryboard.SetSpeedRatio(this, 3);
}
// Stops the storyboard.
private void stopButton_Clicked(object sender, RoutedEventArgs args)
{
myStoryboard.Stop(this);
}
}
}
'
' This example shows how to control
' a storyboard after it has started.
'
'
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Shapes
Imports System.Windows.Media.Animation
Namespace Microsoft.Samples.Animation.TimingBehaviors
Partial Public Class ControlStoryboardExample
Inherits Page
Private ReadOnly myStoryboard As Storyboard
Public Sub New()
' Create a name scope for the page.
NameScope.SetNameScope(Me, New NameScope())
WindowTitle = "Controlling a Storyboard"
Background = Brushes.White
Dim myStackPanel As New StackPanel With {
.Margin = New Thickness(20)
}
' Create a rectangle.
Dim myRectangle As New Rectangle With {
.Width = 100,
.Height = 20,
.Margin = New Thickness(12, 0, 0, 5),
.Fill = New SolidColorBrush(Color.FromArgb(170, 51, 51, 255)),
.HorizontalAlignment = HorizontalAlignment.Left
}
myStackPanel.Children.Add(myRectangle)
' Assign the rectangle a name by
' registering it with the page, so that
' it can be targeted by storyboard
' animations.
RegisterName("myRectangle", myRectangle)
'
' Create an animation and a storyboard to animate the
' rectangle.
'
Dim myDoubleAnimation As New DoubleAnimation(100, 500, New Duration(TimeSpan.FromSeconds(5)))
Storyboard.SetTargetName(myDoubleAnimation, "myRectangle")
Storyboard.SetTargetProperty(myDoubleAnimation, New PropertyPath(Rectangle.WidthProperty))
myStoryboard = New Storyboard()
myStoryboard.Children.Add(myDoubleAnimation)
'
' Create some buttons to control the storyboard
' and a panel to contain them.
'
Dim buttonPanel As New StackPanel With {
.Orientation = Orientation.Horizontal
}
Dim beginButton As New Button With {
.Content = "Begin"
}
AddHandler beginButton.Click, AddressOf beginButton_Clicked
buttonPanel.Children.Add(beginButton)
Dim pauseButton As New Button With {
.Content = "Pause"
}
AddHandler pauseButton.Click, AddressOf pauseButton_Clicked
buttonPanel.Children.Add(pauseButton)
Dim resumeButton As New Button With {
.Content = "Resume"
}
AddHandler resumeButton.Click, AddressOf resumeButton_Clicked
buttonPanel.Children.Add(resumeButton)
Dim skipToFillButton As New Button With {
.Content = "Skip to Fill"
}
AddHandler skipToFillButton.Click, AddressOf skipToFillButton_Clicked
buttonPanel.Children.Add(skipToFillButton)
Dim setSpeedRatioButton As New Button With {
.Content = "Triple Speed"
}
AddHandler setSpeedRatioButton.Click, AddressOf setSpeedRatioButton_Clicked
buttonPanel.Children.Add(setSpeedRatioButton)
Dim stopButton As New Button With {
.Content = "Stop"
}
AddHandler stopButton.Click, AddressOf stopButton_Clicked
buttonPanel.Children.Add(stopButton)
myStackPanel.Children.Add(buttonPanel)
Content = myStackPanel
End Sub
' Begins the storyboard.
Private Sub beginButton_Clicked(sender As Object, args As RoutedEventArgs)
' Specifying "true" as the second Begin parameter
' makes this storyboard controllable.
myStoryboard.Begin(Me, True)
End Sub
' Pauses the storyboard.
Private Sub pauseButton_Clicked(sender As Object, args As RoutedEventArgs)
myStoryboard.Pause(Me)
End Sub
' Resumes the storyboard.
Private Sub resumeButton_Clicked(sender As Object, args As RoutedEventArgs)
myStoryboard.Resume(Me)
End Sub
' Advances the storyboard to its fill period.
Private Sub skipToFillButton_Clicked(sender As Object, args As RoutedEventArgs)
myStoryboard.SkipToFill(Me)
End Sub
' Updates the storyboard's speed.
Private Sub setSpeedRatioButton_Clicked(sender As Object, args As RoutedEventArgs)
' Makes the storyboard progress three times as fast as normal.
myStoryboard.SetSpeedRatio(Me, 3)
End Sub
' Stops the storyboard.
Private Sub stopButton_Clicked(sender As Object, args As RoutedEventArgs)
myStoryboard.Stop(Me)
End Sub
End Class
End Namespace
