c# - 允许进程自动继续的 MessageBox

Question

我希望显示一个消息框，并且程序继续运行，而不是等待我在此消息框上单击“确定”。可以做到吗？

else
{
    // Debug or messagebox the line that fails
    MessageBox.Show("Cols:" + _columns.Length.ToString() + " Line: " + lines[i]);

}

Answer 1

//You need to add this if you don't already have it

using System.Threading.Tasks;

//那么这里是你的代码，它将运行主线程的异步；

Task.Factory.StartNew( () =>
{
   MessageBox.Show("This is a message");

 });

Answer 2

首先，正确的解决方案是将消息框替换为普通窗口（或表单，如果您使用的是 winforms）。那会很简单。示例 (WPF)

<Window x:Class="local:MyWindow" ...>
    <Grid>
        <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center"
                   Text="{Binding}" />
        <Button HorizontalAlignment="Right" VerticalAlignment="Bottom"
                   Click="SelfClose">Close</Button>
    </Grid>
</Window>

...
class MyWindow : Window
{
    public MyWindow(string message) { this.DataContext = message; }
    void SelfClose(object sender, RoutedEventArgs e) { this.Close(); }
}

...
new MyWindow("Cols:" + _columns.Length.ToString() + " Line: " + lines[i]).Show();

如果您想要一个快速而简单的解决方案，您可以从一次性线程中调用消息框：

Thread t = new Thread(() => MessageBox("lalalalala"));
t.SetApartmentState(ApartmentState.STA);
t.Start();

（不确定是否ApartmentState.STA真的需要）

Answer 3

用这个

this.Dispatcher.BeginInvoke(new Action(() => { MessageBox.Show(this, "text"); }));

希望能帮助到你。

Answer 4

using System.Threading;    

static void MessageThread()
{
    MessageBox.Show("Cols:" + _columns.Length.ToString() + " Line: " + lines[i]);
}

static void MyProgram()
{
    Thread t = new Thread(new ThreadStart(MessageThread));
    t.Start();
}

这将在它自己的线程中启动 MessageThread 函数，以便我调用的其余代码MyProgram可以继续。

希望这可以帮助。

Answer 5

你想要的是无模式的形式。这里有一些信息和样品给你。

Answer 6

您需要使用多线程来完成此任务，其中一个线程（主线程）将进行处理，另一个将用于显示消息框。

Answer 7

您也可以考虑使用委托。

以下片段来自我刚刚完成的内容：-

namespace YourApp
{
  public partial class frmMain : Form
  {
    // Declare delegate for summary box, frees main thread from dreaded OK click
    private delegate void ShowSummaryDelegate();
    ShowSummaryDelegate ShowSummary;

    /// <summary>
    /// Your message box, edit as needed
    /// </summary>
    private void fxnShowSummary()
    {
      string msg;

      msg = "TEST SEQUENCE COMPLETE\r\n\r\n";
      msg += "Number of tests performed: " + lblTestCount.Text + Environment.NewLine;
      msg += "Number of false positives: " + lblFalsePve.Text + Environment.NewLine;
      msg += "Number of false negatives: " + lblFalseNve.Text + Environment.NewLine;

      MessageBox.Show(msg);
    }



    /// <summary>
    /// This callback is used to cleanup the invokation of the summary delegate.
    /// </summary>
    private void fxnShowSummaryCallback(IAsyncResult ar)
    {
      try
      {
        ShowSummary.EndInvoke(ar);
      }
      catch
      {
      }
    }

    /// <summary>
    /// Your bit of code that wants to call a message box
    /// </summary>
    private void tmrAction_Tick(object sender, EventArgs e)
    {
      ShowSummary = new ShowSummaryDelegate(fxnShowSummary);
      AsyncCallback SummaryCallback = new AsyncCallback(fxnShowSummaryCallback);
      IAsyncResult SummaryResult = ShowSummary.BeginInvoke(SummaryCallback, null);
    }

    // End of Main Class
  }
}