WPF在进行中不更新文本框 [英] WPF not updating textbox while in progress

问题描述

我有这个代码:

void wait(int ms)
{
    System.Threading.Thread.Sleep(ms);
}

private void button1_Click(object sender, RoutedEventArgs e)
{
    info.Text = "step 1";
    wait(1000);
    info.Text = "step 2";
    wait(1000);
    info.Text = "step 3";
    wait(1000);
    info.Text = "step 4";
    wait(1000);
}

问题是 textbox.text 在整个 void button1_Click 完成后更新.它没有在 AIR 上更新 :(

And problem is that textbox.text is updated after whole void button1_Click finished. It is not updated ON AIR :(

请问，该怎么做?

推荐答案

就这样吧.

private void button1_Click(object sender, RoutedEventArgs e)
    {
        ThreadPool.QueueUserWorkItem((o) =>
             {
                 Dispatcher.Invoke((Action) (() => info.Text = "step 1"));
                 wait(1000);
                 Dispatcher.Invoke((Action) (() => info.Text = "step 2"));
                 wait(1000);
                 Dispatcher.Invoke((Action) (() => info.Text = "step 3"));
                 wait(1000);
                 Dispatcher.Invoke((Action) (() => info.Text = "step 4"));
                 wait(1000);
             });
    }

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