WPF项控件数据绑定不工作

我有以下类结构，所有类都实现了

INotifyPropertyChanged

class University
{
    List<Faculty> Faculties;
}

class Faculty
{
    string Name;
    List<Degree> Degrees;
    bool IsSelected
}

class Degree
{
    string Code;
    List<Subject> Subjects
    bool IsSelected
}

class Subject
{
    string Nme;
    string Code;
    bool IsSelected
}

---

这是行不通的。错误是什么？？？

您不能将当前功能用作第一个itemscontrol的itemssource，因为它只是一个对象，而不是集合。我不知道你为什么要这么做

如果要将父项控件替换为ContentControl，则只要在视图模型中正确设置了CurrentFaculty，并且视图datacontext正确设置为视图模型，该控件就可以正常工作

<ContentControl Grid.Column="2" Grid.Row="0" Content="{Binding CurrentFaculty, Mode=TwoWay}">
        <ContentControl.ContentTemplate>
            <DataTemplate>
                <StackPanel>
                    <CheckBox  Margin="22,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                        <TextBlock Text="All"/>
                    </CheckBox>
                    <ItemsControl Grid.Column="2" Grid.Row="0" ItemsSource="{Binding Degrees, Mode=TwoWay}">
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <StackPanel>
                                    <CheckBox  Margin="22,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                                        <TextBlock Text="{Binding Name, Mode=TwoWay}"/>
                                    </CheckBox>
                                    <ItemsControl ItemsSource="{Binding Subjects, Mode=TwoWay}">
                                        <ItemsControl.ItemTemplate>
                                            <DataTemplate>
                                                <CheckBox  Margin="42,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                                                    <TextBlock Text="{Binding Name}"></TextBlock>
                                                </CheckBox>
                                            </DataTemplate>
                                        </ItemsControl.ItemTemplate>
                                    </ItemsControl>
                                </StackPanel>

                            </DataTemplate>
                        </ItemsControl.ItemTemplate>
                    </ItemsControl>
                </StackPanel>

            </DataTemplate>
        </ContentControl.ContentTemplate>
    </ContentControl>

---

这应该行得通，我不能保证它显示的内容看起来会很好，但这取决于您。

您是否检查了输出窗口中的任何绑定错误？

<ContentControl Grid.Column="2" Grid.Row="0" Content="{Binding CurrentFaculty, Mode=TwoWay}">
        <ContentControl.ContentTemplate>
            <DataTemplate>
                <StackPanel>
                    <CheckBox  Margin="22,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                        <TextBlock Text="All"/>
                    </CheckBox>
                    <ItemsControl Grid.Column="2" Grid.Row="0" ItemsSource="{Binding Degrees, Mode=TwoWay}">
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <StackPanel>
                                    <CheckBox  Margin="22,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                                        <TextBlock Text="{Binding Name, Mode=TwoWay}"/>
                                    </CheckBox>
                                    <ItemsControl ItemsSource="{Binding Subjects, Mode=TwoWay}">
                                        <ItemsControl.ItemTemplate>
                                            <DataTemplate>
                                                <CheckBox  Margin="42,10,0,0" IsChecked="{Binding IsSelected, Mode=TwoWay}">
                                                    <TextBlock Text="{Binding Name}"></TextBlock>
                                                </CheckBox>
                                            </DataTemplate>
                                        </ItemsControl.ItemTemplate>
                                    </ItemsControl>
                                </StackPanel>

                            </DataTemplate>
                        </ItemsControl.ItemTemplate>
                    </ItemsControl>
                </StackPanel>

            </DataTemplate>
        </ContentControl.ContentTemplate>
    </ContentControl>