Question

我有一个WPF窗口，该窗口应该更新文本框以告诉用户正在发生什么，然后执行bat文件。但是，它只是执行这些文件而没有更新文本框。

 MainLine.Text = "Running for " + customer;
 DataInput.Text = "Running Data input.";
 ExecuteProcess(Baseloco + "01_DataInput.bat");
 Mailsort.Text = "Running Mailsort.";
 ExecuteProcess(Baseloco + "02_Mailsort.bat");
 SampleandRecon.Text = "Running sample + recon.";
 ExecuteProcess(Baseloco + "03_SampleandRecon.bat");

执行过程只是调用我编写的bat文件的一种方法

所以我想在运行bat文件之前更新文本框并完全完成更新

有帮助吗？

Answer 1

您应该声明ExecuteProcess方法异步：

private async Task ExecuteProcess(string file)
{
    await Task.Run(() =>
    {
        // run file...
    });
}

然后运行您的执行步骤，例如在异步事件处理程序中：

private async void Button_Click(object sender, RoutedEventArgs e)
{
    MainLine.Text = "Running for " + customer;
    DataInput.Text = "Running Data input.";
    await ExecuteProcess(Baseloco + "01_DataInput.bat");

    Mailsort.Text = "Running Mailsort.";
    await ExecuteProcess(Baseloco + "02_Mailsort.bat");

    SampleandRecon.Text = "Running sample + recon.";
    await ExecuteProcess(Baseloco + "03_SampleandRecon.bat");
}

Answer 2

我建议您初始化一个新线程来完成工作，然后使用dispatcher.invoke设置文本框。像这样：

Task.Run(() =>
{
    Dispatcher.Invoke(() =>
    {
        MainLine.Text = "Running for " + customer;
        DataInput.Text = "Running Data input.";
    });
    ExecuteProcess(Baseloco + "01_DataInput.bat");
    Dispatcher.Invoke(() => Mailsort.Text = "Running Mailsort.");
    ExecuteProcess(Baseloco + "02_Mailsort.bat");
    Dispatcher.Invoke(() => SampleandRecon.Text = "Running sample + recon.");
    ExecuteProcess(Baseloco + "03_SampleandRecon.bat");
});

编辑：

由于有可能批处理文件可能要并行运行，因此我建议使用以下代码以获得更好的性能：

Task.Run(() =>
{
    Dispatcher.Invoke(() =>
    {
        MainLine.Text = "Running for " + customer;
        DataInput.Text = "Running Data input.";
    });
    ExecuteProcess(Baseloco + "01_DataInput.bat");
});

Task.Run(() =>
{
    Dispatcher.Invoke(() => Mailsort.Text = "Running Mailsort.");
    ExecuteProcess(Baseloco + "02_Mailsort.bat");
});

Task.Run(() =>
{
    Dispatcher.Invoke(() => SampleandRecon.Text = "Running sample + recon.");
    ExecuteProcess(Baseloco + "03_SampleandRecon.bat");
});

WPF等待文本框更新

2 个答案: