WPF将命令附加到NET 3.5中的return键上的文本框

<Window x:Class="MyApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:MyApp"
        Title="My Application" Height="450" Width="800">
    <Window.Resources>
        <local:CustomCommand x:Key="EnterCommand" />
    </Window.Resources>
    <Grid>
        <TextBox Width="200" Height="30" VerticalAlignment="Center">
            <TextBox.InputBindings>
                <KeyBinding Key="Return" Command="{StaticResource EnterCommand}" />
            </TextBox.InputBindings>
        </TextBox>
    </Grid>
</Window>

using System;
using System.Windows.Input;

namespace MyApp
{
    public class CustomCommand : ICommand
    {
        public event EventHandler CanExecuteChanged;

        public bool CanExecute(object parameter)
        {
            // 在这里判断命令是否可执行的逻辑
            return true;
        }

        public void Execute(object parameter)
        {
            // 在这里执行命令的逻辑
            Console.WriteLine("Enter key pressed!");
        }
    }
}