Question

我正在尝试从另一个SO帖子here实现解决方案，以便能够直接编写命令，而不是使用SRGMS XML文件作为命令输入。我相信这是帖子试图做的，但我在实现它时遇到了麻烦。

我的代码如下，但它不起作用（错误行旁边有注释）。如果有人能提供如何在WindowsForm应用程序中使用此代码的简单说明，我将非常感激。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Reflection;
using System.Speech.Recognition;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Commands
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        LoadStart();
    }

    private void LoadStart()
    {
        MethodInfo myMethod;

        var methods = new Commands();

        myMethod = CommandFactory.GetCommandMethods("Time Please");
        myMethod.Invoke(methods, null);

        myMethod = CommandFactory.GetCommandMethods("Volume Down");
        myMethod.Invoke(methods, null);

        myMethod = CommandFactory.GetCommandMethods("Volume Up");
        myMethod.Invoke(methods, null);
    }

    public static class CommandFactory
    {
        private static Dictionary<string, MethodInfo> commandMethods = new Dictionary<string, MethodInfo>();

        public static MethodInfo GetCommandMethods(string Command)
        {
            MethodInfo methodInfo;

            var myCommandMethods = new Commands();

            if (commandMethods.Count == 0)
            {
                var methodNames = typeof(Commands).GetMethods(BindingFlags.Public | BindingFlags.DeclaredOnly | BindingFlags.Instance);

                var speechAttributeMethods = methodNames.Where(y => y.GetCustomAttributes().OfType<CommandAttribute>().Any());

                foreach (var speechAttributeMethod in speechAttributeMethods)
                {
                    foreach (var attribute in speechAttributeMethod.GetCustomAttributes(true))
                    {
                        commandMethods.Add(((CommandAttribute)attribute).CommandValue, speechAttributeMethod);
                    }
                }
                methodInfo = commandMethods[Command];
            }
            else
            {
                methodInfo = commandMethods[Command];
            }

            return methodInfo;
        }

        public class Commands
        {
            [Command("Time Please")]
            [Command("Whats the Time")]
            [Command("What Time is it")]
            public void GetTime()
            {
                Console.WriteLine(DateTime.Now.ToLocalTime());
            }

            [Command("Volume Down")]
            public void VolumeDown()
            {
                Console.WriteLine("Volume Down 1");
            }

            [Command("Volume Up")]
            public void VolumeUp()
            {
                Console.WriteLine("Volume Up 1");
            }
        }

        [System.AttributeUsage(System.AttributeTargets.Method, AllowMultiple = true)]
        public class CommandAttribute : System.Attribute
        {
            public string CommandValue { get; set; }

            public CommandAttribute(string textValue)
            {
                this.CommandValue = textValue;
            }
        }
    }


    private void button1_Click(object sender, EventArgs e)
    {
        CommandRecognitionEngine.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(CommandRecognized);

    }

    private static void CommandRecognized(object sender, SpeechRecognizedEventArgs e)
    {
        MethodInfo myMethod;

        var methods = new Commands();//ERROR HERE: Commands is a namespace but used as a type

        myMethod = CommandFactory.GetCommandMethods(e.Result.Text);
        myMethod.Invoke(methods, null);
    }
}
}

Answer 1

编译器无法区分您是指类还是名称空间Commands，因为您有一个类和名称相同的命名空间。

执行以下任一操作

重构您的班级名称
重构您的命名空间名称
显示编译器，表示类Commands.Commands

Answer 2

你有一个名为Commands的类，但它也在命名空间命令中，所以它不能区分它们。

更改命名空间或类名，或将该行更改为：

var methods = new Commands.Commands();

实现CommandFactory解决方案问题

2 个答案: