如何在我拨打 api 电话时阻止 winforms 应用程序冻结

Question

这是我的网络请求函数

static public async Task<JObject> SendCommand(string token, string url, string type)
{
    WebRequest request = WebRequest.Create(url);
    request.Method = type;
    request.ContentType = "application/json";
    request.Headers.Add("Authorization", "Bearer " + token);
    request.Headers.Add("Host", "api.ws.sonos.com");
    request.ContentLength = 0;

    try
    {
        WebResponse response = await request.GetResponseAsync();

        using (StreamReader reader = new StreamReader(response.GetResponseStream()))
        {
            string responseContent = reader.ReadToEnd();

            JObject adResponse = Newtonsoft.Json.JsonConvert.DeserializeObject<JObject>(responseContent);

            return adResponse;
        }
    }
    catch (WebException webException)
    {
        if (webException.Response != null)
        {
            using (StreamReader reader = new StreamReader(webException.Response.GetResponseStream()))
            {
                string responseContent = reader.ReadToEnd();
                return Newtonsoft.Json.JsonConvert.DeserializeObject<JObject>(responseContent);
                //return responseContent;
            }
        }
    }

    return null;
}

这是我的表单代码：

public partial class TestForm : Form
{
    public TestForm()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        Console.WriteLine("ok");
    }

    private void button1_Click_1(object sender, EventArgs e)
    {
        MessageBox.Show(Api.SendCommand("MyToken", "https://api.ws.sonos.com/control/api/v1/households/Sonos_I3ZEerR2PZBHAi46pLY8w1vAxR.s9H8In1EVjyMMLljBPk7/groups", "GET").Result.ToString());
    }
}

我在控制台中运行这个函数并且它工作得很好但是当我运行它在我的 Winforms 应用程序中时一切都冻结了，我已经将该函数从控制台应用程序移动到 Winforms class 库，然后进入 Winforms 项目本身，但这没有帮助，我该如何解决这个问题？

Answer 1

如果您等待 Api.SendCommand() 它应该可以防止您的 winforms 应用程序冻结。

private async void button1_Click(object sender, EventArgs e)
{
    var result = await Api.SendCommand("MyToken", 
        "https://api.ws.sonos.com/control/api/v1/households/Sonos_I3ZEerR2PZBHAi46pLY8w1vAxR.s9H8In1EVjyMMLljBPk7/groups",
        "GET");

    MessageBox.Show(result.ToString());
}

如何在我拨打 api 电话时阻止 winforms 应用程序冻结

How to stop winforms app from freezing when I make an api call

c#

winforms