C# 棱镜引起的错误：“1”；System.Windows.Markup.XamlParseException“；

我有四个项目的解决方案，如下所示：

BridgeConcrete.BL

布里奇达尔

BridgeConcrete.ViewModel

BridgeConcrete.WPF

我正在使用：

• Microsoft.Practices.Prism.Mvvm版本1.1.1.0
• Microsoft.Practices.Prism.Mvvm.Desktop版本1.1.1.0
• Microsoft.Practices.Prism.SharedInterfaces版本1.1.1.0

BridgeConcrete.BL还没有任何内容。

BridgeConcrete.DAL有：

public class Project
{
    public Project()
    {
        AddedBy = 1;
        AddedDate = System.DateTime.Now;
    }
    public int Id { get; set; }
    public string Name { get; set; }

    public DateTime AddedDate { get; set; }
    public int AddedBy { get; set; }

    public DateTime? ModifiedDate { get; set; }
    public int? ModifiedBy { get; set; }


    // Calculated Fields
    public int BridgeCount { get; private set; }
}

public class ProjectViewModel : BindableBase
{
    private IEnumerable<Project> _projects;
    public IEnumerable<Project> Projects
    {
        get { return _projects; }
        set { SetProperty(ref _projects, value); }
    }

    private Project _selectedRecord;
    public Project SelectedRecord
    {
        get { return _selectedRecord; }
        set { SetProperty(ref _selectedRecord, value); }
    }

    public ProjectViewModel()
    {
        SelectedRecord = new Project() { Id = 1, Name = "Test 1" };
    }
}

BridgeConcrete.ViewModel有：

public class Project
{
    public Project()
    {
        AddedBy = 1;
        AddedDate = System.DateTime.Now;
    }
    public int Id { get; set; }
    public string Name { get; set; }

    public DateTime AddedDate { get; set; }
    public int AddedBy { get; set; }

    public DateTime? ModifiedDate { get; set; }
    public int? ModifiedBy { get; set; }


    // Calculated Fields
    public int BridgeCount { get; private set; }
}

public class ProjectViewModel : BindableBase
{
    private IEnumerable<Project> _projects;
    public IEnumerable<Project> Projects
    {
        get { return _projects; }
        set { SetProperty(ref _projects, value); }
    }

    private Project _selectedRecord;
    public Project SelectedRecord
    {
        get { return _selectedRecord; }
        set { SetProperty(ref _selectedRecord, value); }
    }

    public ProjectViewModel()
    {
        SelectedRecord = new Project() { Id = 1, Name = "Test 1" };
    }
}

公共类项目视图模型：BindableBase
{
私人IEnumerable_项目；
公共工程
{
获取{return\u projects；}
set{SetProperty（ref_projects，value）；}
}
私人项目(u selectedRecord);；
公共项目选择记录
{
获取{return\u selectedRecord；}
集合{SetProperty（ref _selectedRecord，value）；}
}
公共项目视图模型（）
{
SelectedRecord=newproject（）{Id=1，Name=“Test 1”}；
}
}

在BridgeConcrete.WPF中，我有：

public class Project
{
    public Project()
    {
        AddedBy = 1;
        AddedDate = System.DateTime.Now;
    }
    public int Id { get; set; }
    public string Name { get; set; }

    public DateTime AddedDate { get; set; }
    public int AddedBy { get; set; }

    public DateTime? ModifiedDate { get; set; }
    public int? ModifiedBy { get; set; }


    // Calculated Fields
    public int BridgeCount { get; private set; }
}

public class ProjectViewModel : BindableBase
{
    private IEnumerable<Project> _projects;
    public IEnumerable<Project> Projects
    {
        get { return _projects; }
        set { SetProperty(ref _projects, value); }
    }

    private Project _selectedRecord;
    public Project SelectedRecord
    {
        get { return _selectedRecord; }
        set { SetProperty(ref _selectedRecord, value); }
    }

    public ProjectViewModel()
    {
        SelectedRecord = new Project() { Id = 1, Name = "Test 1" };
    }
}

一,。UserControl:ProjectView.xaml

<UserControl
    x:Class="BridgeConcrete.WPF.ProjectView"
    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:vm="clr-namespace:BridgeConcrete.ViewModel;assembly=BridgeConcrete.ViewModel"
    mc:Ignorable="d"
    d:DesignWidth="299.257" Height="140.059">

    <UserControl.DataContext>
        <vm:ProjectViewModel/>
    </UserControl.DataContext>

    <Grid >
        <Label Content="Project ID:" HorizontalAlignment="Left" Margin="10,22,0,0" VerticalAlignment="Top"/>
        <TextBox HorizontalAlignment="Left" Height="23" Margin="98,25,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="78" IsEnabled="False"                
                    Text="{Binding SelectedRecord.Id }"/>

        <Label Content="Project Name:" HorizontalAlignment="Left" Margin="10,48,0,0" VerticalAlignment="Top"/>
        <TextBox HorizontalAlignment="Left" Height="23" Margin="99,53,0,0" TextWrapping="Wrap" Text="{Binding SelectedRecord.Name}" VerticalAlignment="Top" Width="145" />
    </Grid>

</UserControl>

MainWindow.xaml：

我将用户控件称为：

<local:ProjectView Margin="0,0,0.4,5.4"/>

错误是：

public class Project
{
    public Project()
    {
        AddedBy = 1;
        AddedDate = System.DateTime.Now;
    }
    public int Id { get; set; }
    public string Name { get; set; }

    public DateTime AddedDate { get; set; }
    public int AddedBy { get; set; }

    public DateTime? ModifiedDate { get; set; }
    public int? ModifiedBy { get; set; }


    // Calculated Fields
    public int BridgeCount { get; private set; }
}

public class ProjectViewModel : BindableBase
{
    private IEnumerable<Project> _projects;
    public IEnumerable<Project> Projects
    {
        get { return _projects; }
        set { SetProperty(ref _projects, value); }
    }

    private Project _selectedRecord;
    public Project SelectedRecord
    {
        get { return _selectedRecord; }
        set { SetProperty(ref _selectedRecord, value); }
    }

    public ProjectViewModel()
    {
        SelectedRecord = new Project() { Id = 1, Name = "Test 1" };
    }
}

System.Windows.Markup.XamlParseException:“未实现该方法或操作。”

内部异常

NotImplementedException：方法或操作未实现

我做了很多搜索，但除了调试之外，我找不到解决方案。所以，我这样做了，我发现问题出在棱镜上

当我删除Prism的继承时，它工作得很好。

问题：

public class Project
{
    public Project()
    {
        AddedBy = 1;
        AddedDate = System.DateTime.Now;
    }
    public int Id { get; set; }
    public string Name { get; set; }

    public DateTime AddedDate { get; set; }
    public int AddedBy { get; set; }

    public DateTime? ModifiedDate { get; set; }
    public int? ModifiedBy { get; set; }


    // Calculated Fields
    public int BridgeCount { get; private set; }
}

public class ProjectViewModel : BindableBase
{
    private IEnumerable<Project> _projects;
    public IEnumerable<Project> Projects
    {
        get { return _projects; }
        set { SetProperty(ref _projects, value); }
    }

    private Project _selectedRecord;
    public Project SelectedRecord
    {
        get { return _selectedRecord; }
        set { SetProperty(ref _selectedRecord, value); }
    }

    public ProjectViewModel()
    {
        SelectedRecord = new Project() { Id = 1, Name = "Test 1" };
    }
}

---

这里的问题是什么，如何解决这个问题，请

您可能正在调用一个虚拟函数，该函数是要您重写的。该方法将抛出

NotImplementedException

（通常开发人员会在他们希望人们实现的虚拟方法中抛出该异常，而不是使其

抽象化

）

---

如果您可以附加堆栈跟踪，它可能有助于指向正确的方向。

您可能要尝试的第一件事是升级到的最新版本。6.3现在可用。我使用的是最新版本，您所说的是旧版本。最新版本的Prism中不再使用Microsoft.Practices.Prism命名空间。您上面列出的组件给我的印象是您使用的是旧版本。