如何用textbox 编写一个类似控制台的程序

Question

退格键 可以删除以前的数据
我像每次 都以sql> 开头

用textbox.text+="/r/n+sql>"光标会改变

还有 我把enter 事件 处理成执行了一个函数

然后 我按回车只执行函数不换行了

Answer 1

做个假的就可以，看下我的例子：

 public partial class MainWindow : Window
 {
  ConsoleHelper consolehelper = new ConsoleHelper();
  public MainWindow()
  {
   InitializeComponent();
   this.DataContext = consolehelper;
  }

  private void Input_KeyDown(object sender, KeyEventArgs e)
  {
   if (e.Key == Key.Return)
   {
    // TO DO: ...
    consolehelper.Output.Add("sql>" + consolehelper.Input);
    consolehelper.Input = string.Empty;
   }
  }
 }

 public class ConsoleHelper : INotifyPropertyChanged
 {
  public ConsoleHelper()
  {
   Output = new ObservableCollection<string>();
  }

  string input;
  public string Input
  {
   get { return input; }
   set
   {
    input = value;
    OnPropertyChanged("Input");
   }
  }

  ObservableCollection<string> output;
  public ObservableCollection<string> Output
  {
   get { return output; }
   set
   {
    output = value;
    OnPropertyChanged("Output");
   }
  }

  private void OnPropertyChanged(string p)
  {
   if (PropertyChanged != null)
    PropertyChanged(this, new PropertyChangedEventArgs(p));
  }

  public event PropertyChangedEventHandler PropertyChanged;
 }

 

XAML：

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
 <Grid>
  <Grid.RowDefinitions>
   <RowDefinition Height="*"/>
   <RowDefinition Height="Auto"/>
  </Grid.RowDefinitions>
  <ListBox Background="Black" ItemsSource="{Binding Output}">
   <ListBox.ItemTemplate>
    <DataTemplate>
     <TextBlock Text="{Binding}" Foreground="LightGreen"/>
    </DataTemplate>
   </ListBox.ItemTemplate>
  </ListBox>
  <DockPanel Grid.Row="1" LastChildFill="True">
   <TextBlock DockPanel.Dock="Left" Text="sql>" Background="Black" Foreground="LightGreen"/>
   <TextBox x:Name="Input" BorderBrush="Transparent" BorderThickness="0" Grid.Row="1" Background="Black" Foreground="LightGreen" Text="{Binding Input, UpdateSourceTrigger=PropertyChanged}" KeyDown="Input_KeyDown"/>
  </DockPanel>
 </Grid>
</Window>

 

J

---

Best day, Best life

Answer 2

关于回车换行问题.. TextBoxBase有个AcceptsReturn属性可以参考下..

---

just another day.