Process.Exited Evento

public:
 event EventHandler ^ Exited;

public event EventHandler Exited;

member this.Exited : EventHandler 

Public Custom Event Exited As EventHandler 

Tipo de Evento

Exemplos

O seguinte exemplo de código cria um processo que imprime um ficheiro. Levanta o Exited evento quando o processo sai porque a EnableRaisingEvents propriedade foi definida quando o processo foi criado. O Exited gestor de eventos apresenta informações de processos.

using System;
using System.Diagnostics;
using System.Threading.Tasks;

class PrintProcessClass
{
    private Process myProcess;
    private TaskCompletionSource<bool> eventHandled;

    // Print a file with any known extension.
    public async Task PrintDoc(string fileName)
    {
        eventHandled = new TaskCompletionSource<bool>();

        using (myProcess = new Process())
        {
            try
            {
                // Start a process to print a file and raise an event when done.
                myProcess.StartInfo.FileName = fileName;
                myProcess.StartInfo.Verb = "Print";
                myProcess.StartInfo.CreateNoWindow = true;
                myProcess.EnableRaisingEvents = true;
                myProcess.Exited += new EventHandler(myProcess_Exited);
                myProcess.Start();
            }
            catch (Exception ex)
            {
                Console.WriteLine($"An error occurred trying to print \"{fileName}\":\n{ex.Message}");
                return;
            }

            // Wait for Exited event, but not more than 30 seconds.
            await Task.WhenAny(eventHandled.Task,Task.Delay(30000));
        }
    }

    // Handle Exited event and display process information.
    private void myProcess_Exited(object sender, System.EventArgs e)
    {
        Console.WriteLine(
            $"Exit time    : {myProcess.ExitTime}\n" +
            $"Exit code    : {myProcess.ExitCode}\n" +
            $"Elapsed time : {Math.Round((myProcess.ExitTime - myProcess.StartTime).TotalMilliseconds)}");
        eventHandled.TrySetResult(true);
    }

    public static async Task Main(string[] args)
    {
        // Verify that an argument has been entered.
        if (args.Length <= 0)
        {
            Console.WriteLine("Enter a file name.");
            return;
        }

        // Create the process and print the document.
        PrintProcessClass myPrintProcess = new PrintProcessClass();
        await myPrintProcess.PrintDoc(args[0]);
    }
}

open System
open System.Diagnostics
open System.Threading.Tasks

let mutable myProcess = new Process()
let mutable eventHandled = TaskCompletionSource<bool>()

// Handle Exited event and display process information.
let myProcess_Exited (sender: obj) (e: EventArgs) =
    printfn $"Exit time    : {myProcess.ExitTime}\n"
    printfn $"Exit code    : {myProcess.ExitCode}\n"
    printfn $"Elapsed time : {round ((myProcess.ExitTime - myProcess.StartTime).TotalMilliseconds)}"
    eventHandled.TrySetResult true |> ignore

// Print a file with any known extension.
let printDoc fileName =
    task {
        eventHandled <- TaskCompletionSource<bool>()

        use myProcess = new Process()

        try
            // Start a process to print a file and raise an event when done.
            myProcess.StartInfo.FileName <- fileName
            myProcess.StartInfo.Verb <- "Print"
            myProcess.StartInfo.CreateNoWindow <- true
            myProcess.EnableRaisingEvents <- true
            myProcess.Exited.AddHandler(EventHandler myProcess_Exited)
            myProcess.Start() |> ignore
        with ex ->
            printfn $"An error occurred trying to print \"{fileName}\":\n{ex.Message}"

        // Wait for Exited event, but not more than 30 seconds.
        let! _ = Task.WhenAny(eventHandled.Task, Task.Delay(30000))
        ()
    }

[<EntryPoint>]
let main args =
    // Verify that an argument has been entered.
    if args.Length <= 0 then
        printfn "Enter a file name."
    else
        // Create the process and print the document.
        printDoc(args[0]).Wait() |> ignore

    0

Imports System.Diagnostics

Class PrintProcessClass

    Private WithEvents myProcess As Process
    Private eventHandled As TaskCompletionSource(Of Boolean)

    ' Print a file with any known extension.
    Async Function PrintDoc(ByVal fileName As String) As Task

        eventHandled = New TaskCompletionSource(Of Boolean)()
        myProcess = New Process
        Using myProcess
            Try
                ' Start a process to print a file and raise an event when done.
                myProcess.StartInfo.FileName = fileName
                myProcess.StartInfo.Verb = "Print"
                myProcess.StartInfo.CreateNoWindow = True
                myProcess.EnableRaisingEvents = True
                AddHandler myProcess.Exited, New EventHandler(AddressOf myProcess_Exited)
                myProcess.Start()

            Catch ex As Exception
                Console.WriteLine("An error occurred trying to print ""{0}"":" &
                vbCrLf & ex.Message, fileName)
                Return
            End Try

            ' Wait for Exited event, but not more than 30 seconds.
            Await Task.WhenAny(eventHandled.Task, Task.Delay(30000))
        End Using
    End Function

    ' Handle Exited event and display process information.
    Private Sub myProcess_Exited(ByVal sender As Object,
            ByVal e As System.EventArgs)

        Console.WriteLine("Exit time:    {0}" & vbCrLf &
            "Exit code:    {1}" & vbCrLf & "Elapsed time: {2}",
            myProcess.ExitTime, myProcess.ExitCode,
            Math.Round((myProcess.ExitTime - myProcess.StartTime).TotalMilliseconds))
        eventHandled.TrySetResult(True)
    End Sub

    Shared Sub Main(ByVal args As String())

        ' Verify that an argument has been entered.
        If args.Length <= 0 Then
            Console.WriteLine("Enter a file name.")
            Return
        End If

        ' Create the process and print the document.
        Dim myPrintProcess As New PrintProcessClass
        myPrintProcess.PrintDoc(args(0)).Wait()

    End Sub
End Class

Observações

O Exited evento indica que o processo associado foi encerrado. Esta ocorrência significa que o processo terminou (abortou) ou foi encerrado com sucesso. Este evento só pode ocorrer se o valor da EnableRaisingEvents propriedade for true.

Existem duas formas de ser notificado quando o processo associado termina: síncrona e assíncrona. Notificação síncrona significa chamar o WaitForExit método para bloquear o thread atual até o processo sair. A notificação assíncrona utiliza o Exited evento, o que permite que o fio que chama continue a execução entretanto. Neste último caso, EnableRaisingEvents deve ser definido como true para que a aplicação que chama receba o evento Exited.

Quando o sistema operativo desliga um processo, notifica todos os outros processos que tenham manipuladores registados para o evento Exited. Neste momento, o handle do processo que acabou de sair pode ser usado para aceder a algumas propriedades como ExitTime e HasExited que o sistema operativo mantém até libertar esse handle completamente.

Para mais informações sobre a utilização do evento Exited em aplicações Windows Forms, consulte a propriedade SynchronizingObject.