Question

我为metro应用程序进行了自定义控制，并希望从Style设置其属性。但它的定制者不会被召唤。

控制属性：

    public int FramesCount
    {
        get { return _framesCount; }
        set
        {
            _framesCount = value;
            if (ImageFileMask != null) ReloadFrames();
        }
    }

    public static readonly DependencyProperty FramesCountProperty =
        DependencyProperty.Register(
            "FramesCount", typeof(int),
            typeof(MyControl), null
        );

XAML风格：

<Style TargetType="controls:MyControl" x:Key="wmLoadingBoxWaiting">
    <Setter Property="Width" Value="32"/>
    <Setter Property="Height" Value="32"/>
    <Setter Property="FramesCount" Value="1"/>
</Style>

和页面XAML：

<controls:MyControl HorizontalAlignment="Left" Margin="645,185,0,0" VerticalAlignment="Top" Style="{StaticResource wmLoadingBoxWaiting}"/>

标准属性（宽度和高度）设置正确，byt costom属性FramesCount没有。只有当我直接在页面XAML中设置它而不是设置样式时，它才会调用它。有人知道我做错了吗？

Answer 1

更改FramesCount定义：

public int FramesCount
{
    get { return (string)GetValue(FramesCountProperty ); }
    set 
    { 
        SetValue(FramesCountProperty , value); 
        if (ImageFileMask != null) ReloadFrames();
    }
}

Answer 2

我找到了一些解决方案：

    public int FramesCount
    {
        get { return _framesCount; }
        set
        {
            _framesCount = value;
            if (ImageFileMask != null) ReloadFrames();
        }
    }

    public static readonly DependencyProperty FramesCountProperty =
        DependencyProperty.Register(
            "FramesCount",
            typeof(int),
            typeof(MyControl),
            new PropertyMetadata(false, (d, e) =>
            {
                (d as MyControl).FramesCount = (int)e.NewValue;
            })
        );

从Style XAML设置自定义控件属性

2 个答案: