如果我们使用表达式交互ChangepropertyAction,XAML中的双向绑定不会更新源代码

我遇到了一个场景,在这个场景中,我必须更新WPF项目中的源数据对象,而不需要任何代码延迟(严格来说,仅限于XAML更改)。描述如下:我有两个文本框,分别称为员工的姓名和职务。

Employee.cs:

public class Employee : INotifyPropertyChanged
{
    private string name;
    public string Name {
        get { return name; }
        set
        {
            name = value;
            if(PropertyChanged != null)
            {
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Name"));
            }
        }
    }

    private string title;
    public string Title {
        get { return title; }
        set
        {
            title = value;
            if (PropertyChanged != null)
            {
                PropertyChanged.Invoke(this, new PropertyChangedEventArgs("Title"));
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

    public static Employee GetEmployee()
    {
        var emp = new Employee()
        {
            Name = "Ali Ahmed",
            Title = "Developer"
        };
        return emp;
    }
}

windows类如下所示:

public partial class MainWindow : Window
    {
        Employee employee = Employee.GetEmployee();
        public MainWindow()
        {
            InitializeComponent();
            DataContext = employee;
        }

        private void OnNameChanged(object sender, RoutedEventArgs e)
        {
            TextBox castedTextBox = sender as TextBox;
            employee.Title = castedTextBox.Text;
        }
    }

注意 OnNameChanged 处理程序将员工的头衔设置为其姓名的字符串(模拟实际项目中不需要的bug)

XAML代码:

<Window x:Class="WpfApp1.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:local="clr-namespace:WpfApp1"
        xmlns:i = "http://schemas.microsoft.com/expression/2010/interactivity" 
        xmlns:ei = "http://schemas.microsoft.com/expression/2010/interactions" 
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <CheckBox x:Name="checkBox" Content="CheckBox" HorizontalAlignment="Left" Height="21" Margin="59,39,0,0" VerticalAlignment="Top" Width="89"/>
        <ComboBox HorizontalAlignment="Left" Height="25" Margin="59,72,0,0" VerticalAlignment="Top" Width="179" />
        <TextBox HorizontalAlignment="Left" x:Name="TitleTextBox" Height="21" Margin="60,113,0,0" TextWrapping="Wrap" Text="{Binding Title, Mode=TwoWay}" VerticalAlignment="Top" Width="178">
            <i:Interaction.Triggers>
                <i:EventTrigger EventName="TextChanged">
                    <ei:ChangePropertyAction TargetName="TitleTextBox" TargetObject="{Binding ElementName=TitleTextBox}" PropertyName="Text" Value=""/>
                </i:EventTrigger>
            </i:Interaction.Triggers>
        </TextBox>
        <TextBox HorizontalAlignment="Left" Height="24" Margin="60,146,0,0" TextWrapping="Wrap" Text="{Binding Name, Mode=TwoWay}" TextChanged="OnNameChanged" VerticalAlignment="Top" Width="178"/>
        <TextBlock HorizontalAlignment="Left" Height="27" Margin="59,180,0,0" TextWrapping="Wrap" Text="{Binding Name, Mode=OneWay}" VerticalAlignment="Top" Width="179"/>
        <TextBlock HorizontalAlignment="Left" Height="27" Margin="60,221,0,0" TextWrapping="Wrap" Text="{Binding Title, Mode=OneWay}" VerticalAlignment="Top" Width="179"/>

    </Grid>
</Window>

这个XAML代码唯一重要的一点是在 TitleTextBox . 这段交互XAML代码的意图和目的是删除title文本框,希望双向绑定也会删除错误设置的员工的title值 OnNameChanged

我的问题:我可以在XAML上做些什么吗 单独地 (因为这是我必须处理的一个特定约束)这会迫使模型识别标题框中的更改并更新Employee对象吗?