XAML 在类型“FadableImageControl”中未找到属性“FadePropertyOf”

wz1wpwve  于 2022-12-07  发布在  其他
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我正在使用可绑定属性我从xaml文件中收到此错误
在类型“FadableImageControl”中找不到属性“FadePropertyOf.”
这看起来像是一个强制转换问题,但是我还没有找到一种方法来使我对象读取此属性ImageFadePropertyImageSourceOf工作正常。有人知道我遗漏了什么吗?

public partial class FadableImageControl : ContentView
{
    public static readonly BindableProperty ImageSourceProperty =
    BindableProperty.Create("ImageSourceOf",
        typeof(ImageSource), typeof(FadableImageControl));

    public ImageSource ImageSourceOf
    {
        get { return GetValue(ImageSourceProperty) as ImageSource; }
        set { SetValue(ImageSourceProperty, value); }
    }

    public bool FadePropertyOf
    {
        get => (bool)GetValue(FadePropertyOfProperty);
        set => SetValue(FadePropertyOfProperty, value);
    }

    public static readonly BindableProperty FadePropertyOfProperty =
       BindableProperty.Create(
           "FadePropertyOf",
           typeof(bool),
           typeof(FadableImageControl),
           defaultValue: false,
           defaultBindingMode: BindingMode.TwoWay,
           propertyChanged: async(BindableObject bindable, object oldValue, object newValue)=>
           {
                var myControl = bindable as FadableImageControl;
                var o = oldValue;
                var n = newValue;
                var opacityControl = myControl.fadableImage;

           if (opacityControl.Opacity == 0)
           {
               await opacityControl.FadeTo(1, 100);
           }
           else
           {
               await opacityControl.FadeTo(0, 100);
           }

    });

   

    public FadableImageControl()
    {
        InitializeComponent();
    }
}

还在XAML中添加了以下内容:

<?xml version="1.0" encoding="UTF-8" ?>
<ContentPage
x:Class="animations.Views.MyPageInitComp"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:bindables="clr-namespace:animations.Views.Bindables">
    <ContentPage.Content>
    <StackLayout Padding="20" BackgroundColor="Pink">
       
        <StackLayout Padding="20" BackgroundColor="DeepPink">
            <bindables:FadableImageControl FadePropertyOfProperty="" ImageSourceOf="ino.png" Opacity="0" />

        </StackLayout>

    </StackLayout>
</ContentPage.Content>
eblbsuwk

eblbsuwk1#

下面的代码对我很有效(我假设FadableImageControlContentView):
第一个

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