计时器在第二次迭代后未更新事件

Question

我正在使用计时器 -

static int count = 0;
private void button1_Click(object sender, EventArgs e)
    {
        // set time
        timer1.Interval = System.Convert.ToInt32(textBox2.Text) * 1000;
        // start timer
        timer1.Enabled = true;
        // set iterations
        count = System.Convert.ToInt32(textBox3.Text);
    }

刻度在哪里 -

private void timer1_Tick_1(object sender, EventArgs e)
    {
        count--;
        if (count == 0)
        {
            timer1.Enabled = false;
        }
        listBox1.Items.Add(textBox1.Text + " : " + count.ToString());
        var status = textBox1.Text + " : " + count.ToString();
        }

当我将时间设置为每秒滴答一次，计数设置为 4 时，我假设这将每秒运行一次事件，并重复 4 次。但是，一旦它重复该事件三次，它就会崩溃。列表框将更新为 -

test : 3
test : 2
test : 1

错误是——

The operation has timed out

我相信这可能是因为我在计时器滴答声中发出网络请求 - '

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resource_url);
        request.Headers.Add("Authorization", authHeader);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        using (Stream stream = request.GetRequestStream())
        {
            byte[] content = ASCIIEncoding.ASCII.GetBytes(postBody);
            stream.Write(content, 0, content.Length);
        }
        WebResponse response = request.GetResponse();`

我怎样才能解决这个问题？进一步阅读表明，当对 URL 进行 2 次以上的调用时，会出现此错误。

Answer 1

尝试timer1.Stop()而不是timer1.Enabled = false;

if (count == 0)
{
   timer1.Stop();
}

Answer 2

我不得不添加 -

response.Close();

行后 -

WebResponse response = request.GetResponse();