C# Avalonia Ui将用户控件放在另一个用户控件中

我需要执行以下类似代码的操作：

<UserControl x:Class="MyApp.Views.UserControls.UCMainControl" 
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:dxb="http://schemas.devexpress.com/winfx/2008/xaml/bars"
             xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
             xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/core"
             xmlns:dxnav="http://schemas.devexpress.com/winfx/2008/xaml/navigation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:Controls="clr-namespace:MyApp.Views.UserControls">

  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="Auto"/>
      <RowDefinition Height="Auto"/>
      <RowDefinition Height="*"/>
      <RowDefinition Height="140"/>
    </Grid.RowDefinitions>

    <Grid.ColumnDefinitions>
      <ColumnDefinition Width="Auto"/>
      <ColumnDefinition/>
      <ColumnDefinition Width="220"/>
    </Grid.ColumnDefinitions>

    <Controls:UCMenuPrincipal x:Name="MenuPrincipalcontrol" Grid.Row="0"/>

  </Grid>

在这段代码中，我需要在另一个UserControl上放置一个菜单，但是该菜单位于另一个UserControl中（但是，它可以是任何东西）

---

当代码是在正常的WPF我可以这样做。Avalonia有可能做到这一点吗？

不完全确定您的要求，但我认为您正在尝试使用一个包含菜单的用户控件，然后使用一个菜单托管此用户控件的窗口

像这样的方法应该会奏效：

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="clr-namespace:MyApp.ViewModels;assembly=MyApp"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:uc="clr-namespace:MyApp.Views.UserControls;assembly=MyApp"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="MyApp.Views.MainWindow"
        Icon="/Assets/avalonia-logo.ico"
        Title="MyApp">

    <uc:UCMainControl/>

</Window>

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:uc="clr-namespace:MyApp.Views.UserControls;assembly=MyApp"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="MyApp.Views.UserControls.UCMainControl">

  <Grid RowDefinitions="Auto,Auto,*,140" ColumnDefinitions="Auto,*,220">
    <uc:UCMenuPrincipal x:Name="MenuPrincipalcontrol" Grid.Row="0"/>
  </Grid>

</UserControl>

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d"
             x:Class="MyApp.Views.UserControls.UCMenuPrincipal">

  <Menu Background="AliceBlue">
    <MenuItem Header="File"/>
    <MenuItem Header="Edit"/>
    <MenuItem Header="Help"/>
  </Menu>

</UserControl>