Question

我正在尝试对飞利浦HUE灯泡进行编程，但我甚至无法向灯光发送命令。我使用Q42.HueApi编写C＃编程。

如果我按下WinForms应用程序中的按钮，这就是我试图打开灯的方式：

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            IBridgeLocator locator = new HttpBridgeLocator();
            ILocalHueClient client = new LocalHueClient("10.1.1.150");

            string AppKey = "myappkey";
            client.Initialize(AppKey);
        }

        void commandCreation(object sender, EventArgs e)
        {
        var command = new LightCommand();
        command.On = true;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            ILocalHueClient.SendCommandAsync(command);
        }
    }
}

但是在最后一行，我得到了编译器错误CS0103。

Answer 1

查看代码中的评论

void commandCreation(object sender, EventArgs e)
{
    var command = new LightCommand(); //  <== because you declare it HERE
    command.On = true;
}

private void button1_Click(object sender, EventArgs e)
{
        ILocalHueClient.SendCommandAsync(command); // ^^ command is out of scope HERE.
}

此外，您似乎正在调用SendCommandAsync，就像静态函数一样。您可能需要在“客户端”实例上调用它，您应该创建一个类字段：

public partial class Form1 : Form
{

     private ILocalHueClient client
     ....

    private void button1_Click(object sender, EventArgs e)
    {
        client.SendCommandAsync(command);
    }

“SendCommand Async ”提示它是一种异步方法。所以你可能想要等待它：

    private async void button1_Click(object sender, EventArgs e)
    {
        // assuming command is a field ...
        await client.SendCommandAsync(command);
    }

编辑：

实际上是

public Task<HueResults> SendCommandAsync(
              LightCommand command, 
              IEnumerable<string> lightList = null)

所以你甚至可以探索HueResults，例如看看你的命令是否成功。

编程Philips HUE时出现编译器错误[CS0103]错误

1 个答案: