将 TextBlock 绑定到 MouseEventHandlers

Question

我正在尝试将一个简单的字符串绑定到 TextBlock，但它什么也没做。

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        this.MouseMove += new MouseEventHandler(window_MouseMove);
    }

    public void window_MouseMove (object sender, MouseEventArgs e)
    {
        Point mouseXY = Mouse.GetPosition(this);

        string mouseXYstring = mouseXY.ToString();
    }
}

还有 XAML...：

<TextBlock x:Name="MousePosition" HorizontalAlignment="Right"
VerticalAlignment="Top" Width="200" Text="{Binding Path=mouseXYstring}" />

也试过了...：

<TextBlock x:Name="MousePosition" HorizontalAlignment="Right"
VerticalAlignment="Top" Width="200" Text="{Binding mouseXYstring}" />

并从 window_MouseMove 执行此操作，删除 ´Text="{Binding mouseXYstring}´，但似乎没有任何效果：

    public void window_MouseMove (object sender, MouseEventArgs e)
    {
        Point mouseXY = Mouse.GetPosition(this);

        string mouseXYstring = mouseXY.ToString();

        TextBlock MP = new TextBlock();

        MP.Text = mouseXYstring;
    }

Answer 1

我在一个文本框上尝试了它，这是我的代码

//mousemove inside my Textbox
    private void TextBox_MouseMove_1(object sender, MouseEventArgs e)
    {
        //txt is the name oh my textbox
        txt.Text = e.GetPosition(this).ToString();
    }

    //mousemove in my windows
    private void wn_MouseMove(object sender, MouseEventArgs e)
    {
        //txt is the name oh my textbox
        txt.Text = e.GetPosition(this).ToString();
    }

但在您的情况下，您使用文本块并尝试此代码

 public void window_MouseMove (object sender, MouseEventArgs e)
{
    MousePosition.text = e.GetPosition(this).ToString();
}