我有以下ViewModel：

// Top-level Policy ViewModel
class MainWindowVM {
    // A collection of ViewModels, each mapping to an application role.
    public List<RolePolicyVM> ComponentPolicyVMs { get; set; } = new();
}

// Contains the component policies pretaining to a specific application roles.
class RolePolicyVM {
    // Role name
    public String Name { get; set; }
    
    // Component policies applying to the ADCS role.
    public List<ComponentPolicyVM> ComponentPolicies { get; set; } = new();
}

// Contains the component policies pretaining to a specific agent plugin or worker
class ComponentPolicyVM {
    // Plugin or worker Id. Not rendered.
    public Guid Id { get; set; }
    
    // The description of the setting to be displayed in the AgentConfig tool
    public String Description { get; set; }
    
    // The tooltip to be displayed when mousing over the Description TextBlock
    public String ToolTipText { get; set; }
    
    // The value to bind to a control
    public Object Value { get; set; }
    
    // The data type of "Value". 
    // This property determines what type of control to render.
    public Type ValueType { get; set; }
}

我需要创建一个DataGrid或TreeView控件，它是基于AppPolicyVM.ComponentPolicyVMs中的元素动态填充的。

• 顶层层次结构绑定到RolePolicyVM.Name
• 第二级必须包含2列：
• 第一列绑定到ComponentPolicyVM.Description
• 第二列绑定到ComponentPolicyVM.Value，但这里是它变得棘手的地方：我需要这里呈现的控件是基于ComponentPolicyVM.ValueType的值动态的。例如，如果它是typeof(string)，我们会看到一个TextBox。如果它是typeof(bool)，它是一个复选框。我需要支持bool，string和int。

我已经渲染了一个TreeView，它总是渲染一个复选框：

我所坚持的（甚至不确定这是否可能）是如何添加逻辑，以动态呈现基于ComponentPolicyVM.ValueType的适当类型的控件。
以下是我目前为止的XAML：

<Window x:Class="AppPolicyConfig.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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:vm="clr-namespace:AppPolicyConfig.ViewModels"
        xmlns:local="clr-namespace:AppPolicyConfig"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.DataContext>
        <vm:MainWindowVM/>
    </Window.DataContext>
    <TreeView x:Name="MainTreeView"
              HorizontalAlignment="Stretch"
              VerticalAlignment="Stretch"
              Margin="10"
              ItemsSource="{Binding ComponentPolicyVMs}">
        <TreeView.ItemContainerStyle>
            <Style TargetType="{x:Type TreeViewItem}">
                <Setter Property="IsExpanded" Value="True" />
            </Style>
        </TreeView.ItemContainerStyle>
        <TreeView.ItemTemplate>
            <HierarchicalDataTemplate ItemsSource="{Binding ComponentPolicies}" DataType="{x:Type vm:RolePolicyVM}">
                <TextBlock Text="{Binding Name}"/>
                <HierarchicalDataTemplate.ItemTemplate>
                    <DataTemplate DataType="{x:Type vm:ComponentPolicyVM}">
                        <Grid>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="300" />
                                <ColumnDefinition Width="*" />
                            </Grid.ColumnDefinitions>
                            <TextBlock Grid.Column="0" 
                                       Text="{Binding Description}"/>
                            <CheckBox Grid.Column="1"
                                      IsChecked="{Binding Value}"/>
                        </Grid>
                    </DataTemplate>
                </HierarchicalDataTemplate.ItemTemplate>
            </HierarchicalDataTemplate>
        </TreeView.ItemTemplate>
    </TreeView>
</Window>