C# 有没有办法不使用继承就将属性引入类中？

我使用的是Xamarin，它要求我的CS类和XAML继承自Xamarin对象，如下所示：

CS

XAML

然后它告诉我我不能这样做，因为分部类必须从同一基类继承

---

这有什么办法吗？无论如何，我可以添加属性，例如

SelectedValProperty

。。没有从基类继承？

您看到的错误仅仅是因为代码隐藏中的基类类型与您在XAML中使用的基类类型不同

一旦确保两个基类类型相同，XAML编译器就会很高兴

<?xml version="1.0" encoding="UTF-8"?>
<!-- make sure change root tag from ContentView to base class type -->
<!-- ('jt' represents the tag prefix for xmlms namespace declaration) -->

<jt:BaseTemplate xmlns="http://xamarin.com/schemas/2014/forms" 
    xmlns:jt="clr-namespace:Japanese.Templates"

    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
    xmlns:local="clr-namespace:Japanese;assembly=Japanese" 
    xmlns:b="clr-namespace:Behaviors;assembly=Behaviors" 
    x:Class="Japanese.Templates.TimeIntervalTemplate" x:Name="this">

    <!-- your content here -->

</jt:BaseTemplate>

<?xml version="1.0" encoding="UTF-8"?>
<ContentView xmlns="http://xamarin.com/schemas/2014/forms" 
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
             xmlns:local="clr-namespace:Japanese;assembly=Japanese" 
             xmlns:b="clr-namespace:Behaviors;assembly=Behaviors" 
             x:Class="Japanese.Templates.TimeIntervalTemplate" x:Name="this">
    <StackLayout BackgroundColor="#FFFFFF" Padding="20,0" HeightRequest="49" Margin="0">

public class BaseTemplate : ContentView
... 

public partial class TimeIntervalTemplate : BaseTemplate
...

<?xml version="1.0" encoding="UTF-8"?>
<!-- make sure change root tag from ContentView to base class type -->
<!-- ('jt' represents the tag prefix for xmlms namespace declaration) -->

<jt:BaseTemplate xmlns="http://xamarin.com/schemas/2014/forms" 
    xmlns:jt="clr-namespace:Japanese.Templates"

    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
    xmlns:local="clr-namespace:Japanese;assembly=Japanese" 
    xmlns:b="clr-namespace:Behaviors;assembly=Behaviors" 
    x:Class="Japanese.Templates.TimeIntervalTemplate" x:Name="this">

    <!-- your content here -->

</jt:BaseTemplate>