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]);
}
//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");
});
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)
用这个
this.Dispatcher.BeginInvoke(new Action(() => { MessageBox.Show(this, "text"); }));
希望能帮助到你。
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。
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。
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
}
}