日期:2014-05-18  浏览次数:21061 次

storyboard创建动画问题
要求:
创建一个button(起始坐标为(0,0)),沿x轴方向由0移动到100
在xaml中可以正常实现(使用),实现方法如下:
C# code

<Window.Resources>
        <Storyboard x:Key="sboard">
            <DoubleAnimation Storyboard.TargetName="ttXaml" Storyboard.TargetProperty="X"
                             Duration="00:00:01" From="0" To="30" />
        </Storyboard>
    </Window.Resources>
    <Grid>
        <Button x:Name="button1" Content="click" Click="button1_Click" Width="50" Height="50">   
            <Rectangle.RenderTransform>
                <TranslateTransform x:Name="ttXaml"/>
            </Rectangle.RenderTransform>
        </Button>
    </Grid>


C#部分代码如下:
C# code

(this.Resources["sboard"] as Storyboard).Begin();


代码运行正常,现在我想根据xaml代码转换成C#代码,我做了如下转换:
C# code

            TranslateTransform tt = new TranslateTransform();
            // RotateTransform rt = new RotateTransform();
            this.button1.RenderTransform = tt;

            this.button1.Name = "button1";

            NameScope.SetNameScope(this, new NameScope());
            this.RegisterName(this.button1.Name, this.button1);

            DoubleAnimation xAnimation = new DoubleAnimation();
            xAnimation.From = 0;
            xAnimation.To = 100;
            xAnimation.Duration = new Duration(TimeSpan.FromSeconds(1));


            DependencyProperty[] propertyChain = new DependencyProperty[] // 使用属性链的时候应用
            {
                Button.RenderTransformProperty,
                TranslateTransform.XProperty,
                RotateTransform.AngleProperty // 调整角度时候用
            };

            Storyboard story = new Storyboard();
            // story.AutoReverse = true;
            // story.RepeatBehavior = RepeatBehavior.Forever;
            story.Children.Add(xAnimation);

            //Storyboard.SetTargetName(xAnimation, this.button1.Name);
            //Storyboard.SetTargetProperty(xAnimation, new PropertyPath("(0).(1)", propertyChain));
            Storyboard.SetTarget(xAnimation, tt);
            Storyboard.SetTargetProperty(xAnimation, new PropertyPath(TranslateTransform.XProperty));
            //Storyboard.SetTarget(xAnimation, rt);
            //Storyboard.SetTargetProperty(xAnimation, new PropertyPath(RotateTransform.AngleProperty));

            story.Begin(this);


运行之后却没有反应,但是,如果使用:
  //Storyboard.SetTargetName(xAnimation, this.button1.Name);
  //Storyboard.SetTargetProperty(xAnimation, new PropertyPath("(0).(1)", propertyChain));
这个方法就可以得到想要的效果。
我看xaml代码部分的TargeName属性设置为了"ttXaml"也就是对应对象是TranslateTransform变形啊,为什么我在C#代买中这样写就没有效果呢?能帮忙看下是否代码写错了?
非常感谢!

------解决方案--------------------
“RenderTrasform.X"

A Storyboard can be used to animate dependency properties of animatable classes (for more information about what makes a class animatable, see the Animation Overview). However, because storyboarding is a framework-level feature, the object must belong to the NameScope of a FrameworkElement or a FrameworkContentElement.

http://nonocast.cn/?p=2454