在WPF和x2B中查看删除/停用；棱镜不工作

我有一个带有

ContentControl

项的shell（窗口）

<ContentControl regions:RegionManager.RegionName="mainContentRegion"/>

及

应用程序启动时，

StartupControl

将根据需要显示在区域中。然而，我正试图让

StartupControl

被

MusicGenerator

取代，这被证明是徒劳的吞食

起初，我尝试更改视图本身（因为

ContentControl

一次只能承载一个视图）

原始视图，即

StartupControl

永远不会从根视图中删除

两个视图的完整代码清单

StartupControl.xaml.cs

public partial class StartupControl : IRegionMemberLifetime
{
    public bool KeepAlive
    {
        get { return false; }
    }

    public StartupControl(IUnityContainer container)
    {
        InitializeComponent();
        DataContext = container.Resolve<StartupViewModel>();
    }
}

using Microsoft.Practices.Prism.Regions;

namespace GeneticMusic.Views
{
    /// <summary>
    /// Interaction logic for StartupControl.xaml
    /// </summary>
    public partial class MusicGeneration : IRegionMemberLifetime
    {
        public bool KeepAlive
        {
            get { return false; }
        }

        public MusicGeneration()
        {
            InitializeComponent();
        }
    }
}

公共部分类StartupControl:IRegionMemberLifetime
{
公共图书馆
{
获取{return false；}
}
公共启动控制（IUnityContainer容器）
{
初始化组件（）；
DataContext=container.Resolve（）；
}
}

StartupControl.xaml

<UserControl x:Class="StartupModule.Views.StartupControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" >

    <Grid Name="Container">
         has content here which displays correctly
    </Grid>
</UserControl>

<UserControl x:Class="GeneticMusic.Views.MusicGeneration"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:toolkit="http://schemas.xceed.com/wpf/xaml/toolkit"
             mc:Ignorable="d" >


    <Grid Name="Container">
        content here... displays correctly
    </Grid>
</UserControl>

此处有正确显示的内容

MusicGenerator.xaml.cs

public partial class StartupControl : IRegionMemberLifetime
{
    public bool KeepAlive
    {
        get { return false; }
    }

    public StartupControl(IUnityContainer container)
    {
        InitializeComponent();
        DataContext = container.Resolve<StartupViewModel>();
    }
}

using Microsoft.Practices.Prism.Regions;

namespace GeneticMusic.Views
{
    /// <summary>
    /// Interaction logic for StartupControl.xaml
    /// </summary>
    public partial class MusicGeneration : IRegionMemberLifetime
    {
        public bool KeepAlive
        {
            get { return false; }
        }

        public MusicGeneration()
        {
            InitializeComponent();
        }
    }
}

使用Microsoft.Practices.Prism.Regions；
命名空间GeneticMusic.Views
{
/// 
///StartupControl.xaml的交互逻辑
/// 
公共部分类音乐生成：IRegionMemberLifetime
{
公共图书馆
{
获取{return false；}
}
公共音乐生成（）
{
初始化组件（）；
}
}
}

GenerateMusic.xaml

<UserControl x:Class="StartupModule.Views.StartupControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" >

    <Grid Name="Container">
         has content here which displays correctly
    </Grid>
</UserControl>

<UserControl x:Class="GeneticMusic.Views.MusicGeneration"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:toolkit="http://schemas.xceed.com/wpf/xaml/toolkit"
             mc:Ignorable="d" >


    <Grid Name="Container">
        content here... displays correctly
    </Grid>
</UserControl>

内容在这里。。。正确显示

编辑：看起来像是重复的

---

您是否可以发布工作样本？理解这个问题并不难。@pushpraj-这真的很难做到，因为我有大量的项目彼此依赖，也就是XAML（资源字典）。我不知道从何处开始添加工作样本，但这里的问题基本相同：

<UserControl x:Class="GeneticMusic.Views.MusicGeneration"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:toolkit="http://schemas.xceed.com/wpf/xaml/toolkit"
             mc:Ignorable="d" >


    <Grid Name="Container">
        content here... displays correctly
    </Grid>
</UserControl>