使用Thread.Sleep时UI不更新 [英] UI Not Updating when Using Thread.Sleep

问题描述

我有需要按钮的应用程序，每隔1秒钟单击此按钮一次，将特殊文本添加到TextBox中，但是当单击此按钮时，始终等待并一起输入所有文本.

I have application that have button i want when click this button every 1 second add special text add to a TextBox but when click this button all time wait and enter all text together.

出什么问题了?

例如:

 private void button2_Click(object sender, RoutedEventArgs e)
        {
            Random rand = new Random(DateTime.Now.Millisecond);
            textBox1.Text = "";
            for (int i = 0; i < 10; i++)
            {
                textBox1.Text += rand.Next(1,10) + "\n";
                System.Threading.Thread.Sleep(1000);
            }
        }

谢谢.

推荐答案

您正在UI线程上睡觉.
这样会冻结UI.

You're sleeping on the UI thread.
This freezes the UI.

相反，请使用 BackgroundWorker 及其进度事件.

Instead, use a BackgroundWorker and its progress events.

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