輸入對話框彈出鼠標點擊

Question

我想讓它如此，當用戶點擊我的畫布上的一個點時，顯示一個彈出窗口，允許用戶輸入兩個單獨的數據。所以我需要兩個文本塊，然後將輸入的數據保存到後面代碼中的某些變量中。我一直在尋找不同的教程，並且使用輸入texblocks很容易製作一個窗口。只是不知道如何與彈出窗口。 addNode_MouseDown方法是我嘗試添加彈出窗口的地方，因爲輸入的信息是關於用戶點擊畫布時所作的圓圈。任何幫助，將不勝感激。

這裏是我的代碼的時刻：

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"> 
    </Canvas> 
</Grid> 
</Window> 

後面的代碼：

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); 

     } 

    } 
} 

Answer 1

你有沒有嘗試使用PopUp窗口？

XAML：

<Popup Name="errMsg" StaysOpen="False"> 
<TextBox/> 
</Popup> 

在後面的代碼

：

errMsg.IsOpen = true; 

或者你可以可以創建充分利用你的代碼：

WPF popup window

參考：

Popup a User Control