在数据绑定的WPF树视图叶中开发复选框

我有下一个WPF树视图：

        <TreeView HorizontalAlignment="Left" Margin="6,0,0,32" Name="tvProductos" Width="158">
            <TreeViewItem Header="Securities" IsExpanded="True" FontWeight="Bold">
                <TreeViewItem Header="Country" Name="Country" FontWeight="Normal" />
                <TreeViewItem Header="Currency" Name="Currency" FontWeight="Normal" />
                <TreeViewItem Header="Type" Name="Type" FontWeight="Normal" />
                <TreeViewItem Header="ISIN" Name="ISIN" FontWeight="Normal" />
                <TreeViewItem Header="Description" Name="Description" FontWeight="Normal" />
            </TreeViewItem>
            <TreeViewItem Header="Issuer" IsExpanded="True" FontWeight="Bold">
                <TreeViewItem Header="Name" Name="IssuerName" FontWeight="Normal" />
                <TreeViewItem Header="Type" Name="IssuerType" FontWeight="Normal" />
                <TreeViewItem Header="Market" Name="IssuerMarket" FontWeight="Normal" />
            </TreeViewItem>
        </TreeView>

问题是我需要在每个节点上添加一个复选框（低级和高级）。我一直在寻找解决方案，最好的是使用HierarchycalDataTemplate。但我从未发现一个同时具有固定节点和动态节点的示例。我试了几个例子，但都没能解决

你能帮我吗

先谢谢你

---

致以问候。

我这样做的方式是使用一个helper类来表示可以检查的项目（有些人称之为“视图模型”）：

这允许您为此特定类型指定

DataTemplate

：

<TreeView HorizontalAlignment="Left" Margin="6,0,0,32" Name="tvProductos" Width="158">
    <TreeView.Resources>
        <DataTemplate DataType="{x:Type local:SelectableItem}" xmlns:local="clr-namespace:WpfApplication1">
            <StackPanel Orientation="Horizontal">
                <CheckBox IsChecked="{Binding IsSelected}" />
                <TextBlock Text="{Binding Label}" />
            </StackPanel>
        </DataTemplate>
    </TreeView.Resources>
    <TreeViewItem Header="Securities" IsExpanded="True" FontWeight="Bold">
        <TreeViewItem Header="Country" Name="Country" FontWeight="Normal" />
        <TreeViewItem Header="Currency" Name="Currency" FontWeight="Normal" />
        <TreeViewItem Header="Type" Name="Type" FontWeight="Normal" />
        <TreeViewItem Header="ISIN" Name="ISIN" FontWeight="Normal" />
        <TreeViewItem Header="Description" Name="Description" FontWeight="Normal" />
    </TreeViewItem>
    <TreeViewItem Header="Issuer" IsExpanded="True" FontWeight="Bold">
        <TreeViewItem Header="Name" Name="IssuerName" FontWeight="Normal" />
        <TreeViewItem Header="Type" Name="IssuerType" FontWeight="Normal" />
        <TreeViewItem Header="Market" Name="IssuerMarket" FontWeight="Normal" />
    </TreeViewItem>
</TreeView>

---

这就应该起作用了。

好的，它起作用了！非常感谢你。现在，如何检索所选节点？根据应用程序的体系结构，有大约1000种方法可以检索，其中一种方法是使用以下内容：

Country.ItemsSource.Cast（）.Where（I=>I.IsSelected）

；）完美地非常感谢你！

public class SelectableItem
{
    public bool IsSelected { get; set; }
    public string Label { get; set; }
}

<TreeView HorizontalAlignment="Left" Margin="6,0,0,32" Name="tvProductos" Width="158">
    <TreeView.Resources>
        <DataTemplate DataType="{x:Type local:SelectableItem}" xmlns:local="clr-namespace:WpfApplication1">
            <StackPanel Orientation="Horizontal">
                <CheckBox IsChecked="{Binding IsSelected}" />
                <TextBlock Text="{Binding Label}" />
            </StackPanel>
        </DataTemplate>
    </TreeView.Resources>
    <TreeViewItem Header="Securities" IsExpanded="True" FontWeight="Bold">
        <TreeViewItem Header="Country" Name="Country" FontWeight="Normal" />
        <TreeViewItem Header="Currency" Name="Currency" FontWeight="Normal" />
        <TreeViewItem Header="Type" Name="Type" FontWeight="Normal" />
        <TreeViewItem Header="ISIN" Name="ISIN" FontWeight="Normal" />
        <TreeViewItem Header="Description" Name="Description" FontWeight="Normal" />
    </TreeViewItem>
    <TreeViewItem Header="Issuer" IsExpanded="True" FontWeight="Bold">
        <TreeViewItem Header="Name" Name="IssuerName" FontWeight="Normal" />
        <TreeViewItem Header="Type" Name="IssuerType" FontWeight="Normal" />
        <TreeViewItem Header="Market" Name="IssuerMarket" FontWeight="Normal" />
    </TreeViewItem>
</TreeView>

Country.ItemsSource = (from d in db.PAISES
                       join p in db.PRODUCTOS on d.IDPAIS equals p.IDPAIS
                       select new SelectableItem { Label = d.NOMBREPAIS }).Distinct();