Thread.SetApartmentState(ApartmentState) Yöntem

public:
 void SetApartmentState(System::Threading::ApartmentState state);

[System.Runtime.Versioning.SupportedOSPlatform("windows")]
public void SetApartmentState (System.Threading.ApartmentState state);

public void SetApartmentState (System.Threading.ApartmentState state);

[<System.Runtime.Versioning.SupportedOSPlatform("windows")>]
member this.SetApartmentState : System.Threading.ApartmentState -> unit

member this.SetApartmentState : System.Threading.ApartmentState -> unit

Public Sub SetApartmentState (state As ApartmentState)

Parametreler

Öznitelikler

SupportedOSPlatformAttribute

Özel durumlar

Örnekler

Aşağıdaki kod örneği GetApartmentState ,, SetApartmentState ve yöntemlerini gösterir TrySetApartmentState . Kod örneği bir iş parçacığı oluşturur. İş parçacığı başlatılmadan önce, GetApartmentState ilk ApartmentState.Unknown durumu görüntüler ve SetApartmentState durumu olarak değiştirir ApartmentState.STA . TrySetApartmentStateDaha sonra yöntem, false ApartmentState.MTA Grup durumu zaten ayarlanmış olduğundan durumu olarak değiştirme girişiminde bulunur. Aynı işlem ile denenseydi SetApartmentState , InvalidOperationException oluşturuldu olur.

İş parçacığı başlatıldıktan sonra, TrySetApartmentState yöntemi yeniden kullanılır. ThreadStateExceptionİş parçacığı zaten başlatılmış olduğundan bu zaman atar.

using namespace System;
using namespace System::Threading;

void ThreadProc()
{
    Thread::Sleep(2000);
};

void main()
{
    Thread^ t = gcnew Thread(gcnew ThreadStart(ThreadProc));
    Console::WriteLine("Before setting apartment state: {0}", 
            t->GetApartmentState());

    t->SetApartmentState(ApartmentState::STA);
    Console::WriteLine("After setting apartment state: {0}", 
        t->GetApartmentState());

    bool result = t->TrySetApartmentState(ApartmentState::MTA);
    Console::WriteLine("Try to change state: {0}", result);

    t->Start();

    Thread::Sleep(500);

    try
    {
        t->TrySetApartmentState(ApartmentState::STA);
    }
    catch (ThreadStateException^)
    {
        Console::WriteLine("ThreadStateException occurs " +
            "if apartment state is set after starting thread.");
    }

    t->Join();
}

/* This code example produces the following output:

Before setting apartment state: Unknown
After setting apartment state: STA
Try to change state: False
ThreadStateException occurs if apartment state is set after starting thread.
 */

using System;
using System.Threading;

class Example
{
    public static void Main()
    {
        Thread t = new Thread(ThreadProc);
        Console.WriteLine("Before setting apartment state: {0}",
            t.GetApartmentState());

        t.SetApartmentState(ApartmentState.STA);
        Console.WriteLine("After setting apartment state: {0}",
            t.GetApartmentState());

        bool result = t.TrySetApartmentState(ApartmentState.MTA);
        Console.WriteLine("Try to change state: {0}", result);

        t.Start();

        Thread.Sleep(500);

        try
        {
            t.TrySetApartmentState(ApartmentState.STA);
        }
        catch (ThreadStateException)
        {
            Console.WriteLine("ThreadStateException occurs " +
                "if apartment state is set after starting thread.");
        }

        t.Join();
    }

    public static void ThreadProc()
    {
        Thread.Sleep(2000);
    }
}

/* This code example produces the following output:

Before setting apartment state: Unknown
After setting apartment state: STA
Try to change state: False
ThreadStateException occurs if apartment state is set after starting thread.
 */

Imports System.Threading

Module Example

    Sub Main()
 
        Dim t As New Thread(AddressOf ThreadProc)
        Console.WriteLine("Before setting apartment state: {0}", _
            t.GetApartmentState())

        t.SetApartmentState(ApartmentState.STA)
        Console.WriteLine("After setting apartment state: {0}", _
            t.GetApartmentState())

        Dim result As Boolean = _
            t.TrySetApartmentState(ApartmentState.MTA)
        Console.WriteLine("Try to change state: {0}", result)

        t.Start()

        Thread.Sleep(500)

        Try
            t.TrySetApartmentState(ApartmentState.STA)
        Catch ex As ThreadStateException
            Console.WriteLine("ThreadStateException occurs " & _
                "if apartment state is set after starting thread.")
        End Try

        t.Join()
    End Sub

    Sub ThreadProc()
        Thread.Sleep(2000)
    End Sub
End Module

' This code example produces the following output:
'
'Before setting apartment state: Unknown
'After setting apartment state: STA
'Try to change state: False
'ThreadStateException occurs if apartment state is set after starting thread.

Açıklamalar

Yeni iş parçacıkları, ApartmentState.MTA kendi grup durumları başlatılmadan önce ayarlanmamışsa olarak başlatılır. Bir iş parçacığı başlatılmadan önce Apartment State ayarlanmalıdır.

Yöntemi SetApartmentState ve yöntemi ile birlikte yöntemi, GetApartmentState TrySetApartmentState ApartmentState özelliğini değiştirir.

Şunlara uygulanır