用于获取用户输入的弹出窗口

>我在这里有一个类似的问题：鼠标单击时弹出输入对话框

因此，当用户单击画布时，会在鼠标单击的位置标记一个彩色圆圈，并显示一个带有两个文本框的弹出窗口以获取用户输入。我正在尝试完成两件事：我希望显示一个窗口，以便用户可以移动弹出窗口，而不是弹出窗口(现在它只是一个位于同一位置的空白区域(。我还想添加一个"确定"按钮，以便在单击它时，两个输入将保存到各自的变量中并关闭窗口。

我尝试在弹出窗口后添加标签，但我得到了一个 xamlparse异常。我不确定该怎么做才能使弹出窗口成为一个窗口。关于输入文本，我见过很多示例，其中用户将文本输入文本框并将数据保存到变量中，但在文本框窗口关闭后没有保存它。这是我的第一个 wpf 应用程序，我正在慢慢尝试完成和学习它。这是我目前的代码：

XAML：

<Window x:Class="CanvasStuff.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Main Window" Height="410" Width="869">
  <Grid Height="387">
    <Label Content="Image" Height="32" HorizontalAlignment="Left" Margin="11,10,0,0"
           Name="selectedFileName" VerticalAlignment="Top" Width="137"
           Background="LightGray" BorderBrush="Gray" BorderThickness="1"/>
    <Button Content="Browse File" Height="34" HorizontalAlignment="Left" Margin="154,6,0,0"
            Name="BrowseButton" VerticalAlignment="Top" Width="119"
            Foreground="Maroon" FontSize="16" FontFamily="Georgia" Click="BrowseButton_Click" />
    <Button Content="Input Range and Heading" Height="34" HorizontalAlignment="Left" Margin="279,6,0,0"
            Name="InputRangeBearing" VerticalAlignment="Top" Width="191"
            Foreground="Maroon" FontSize="16" FontFamily="Georgia" Click="InputButton_Click" />
    <Canvas Margin="0,45,2,8" x:Name="canvas1" MouseDown= "addNode_MouseDown">
        <Popup Name="inputPopup" MouseDown="addNode_MouseDown" >
                <Grid Height="150" Background="White" >
                    <Label Content="Range to object (m): " Height="28" HorizontalAlignment="Left" Margin="39,28,0,0" Name="label1" VerticalAlignment="Top" />
                    <TextBox x:Name="rangeToObject" Height="23" HorizontalAlignment="Left" Margin="151,30,0,0" VerticalAlignment="Top" Width="120" />
                    <Label Content="Heading to Object (0-360): " Height="28" HorizontalAlignment="Left" Margin="39,63,0,0" Name="label2" VerticalAlignment="Top" />
                    <TextBox x:Name="headingToObject" Height="23" HorizontalAlignment="Left" Margin="151,68,0,0" VerticalAlignment="Top" Width="120" />
                </Grid>
        </Popup>
    </Canvas>
  </Grid>
</Window>

代码隐藏：

namespace CanvasStuff
{
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>
public partial class MainWindow
{
    public MainWindow()
    {
        InitializeComponent();
    }
    private void BrowseButton_Click(object sender, RoutedEventArgs e)
    {
        OpenFileDialog dlg = new OpenFileDialog();
        dlg.InitialDirectory = "c:''";
        dlg.Filter = "Image files (*.jpg)|*.jpg|All Files (*.*)|*.*";
        dlg.RestoreDirectory = true;
        if (dlg.ShowDialog() == System.Windows.Forms.DialogResult.OK)
        {
            string selectedFileName = dlg.FileName;
            ImageBrush brush = new ImageBrush();
            brush.ImageSource = new BitmapImage(new Uri(selectedFileName));
            canvas1.Background = brush;
            BitmapImage bitmap = new BitmapImage();
        }
    }
    private void InputButton_Click(object sender, RoutedEventArgs e)
    {
        MessageBox.Show("Please click on known object to enter range and heading of that object.");
    }
    private void addNode_MouseDown(object sender, MouseButtonEventArgs e)
    {
        Point currentPoint = new Point();
        if (e.ButtonState == MouseButtonState.Pressed)
            currentPoint = e.GetPosition(this);
        Ellipse ellipse = new Ellipse();
        SolidColorBrush mySolidColorBrush = new SolidColorBrush();
        mySolidColorBrush.Color = Color.FromArgb(255, 255, 255, 0);
        ellipse.Fill = mySolidColorBrush;
        ellipse.Width = 10;
        ellipse.Height = 10;
        Canvas.SetLeft(ellipse, e.GetPosition(canvas1).X);
        Canvas.SetTop(ellipse, e.GetPosition(canvas1).Y);
        canvas1.Children.Add(ellipse);
        inputPopup.IsOpen = true;
    } 
}
}