Process.SynchronizingObject 屬性

定義

命名空間:

System.Diagnostics

組件:

System.Diagnostics.Process.dll

來源:

Process.cs

取得或設定物件，用以封送處理因處理序結束事件而發出的事件處理常式呼叫。

public:
 property System::ComponentModel::ISynchronizeInvoke ^ SynchronizingObject { System::ComponentModel::ISynchronizeInvoke ^ get(); void set(System::ComponentModel::ISynchronizeInvoke ^ value); };

public System.ComponentModel.ISynchronizeInvoke? SynchronizingObject { get; set; }

member this.SynchronizingObject : System.ComponentModel.ISynchronizeInvoke with get, set

Public Property SynchronizingObject As ISynchronizeInvoke

屬性值

ISynchronizeInvoke

ISynchronizeInvoke，用以封送處理因處理序上的 Exited 事件而發出的事件處理常式呼叫。

範例

   ref class MyButton: public Button
   {
   public:
      void MyProcessExited( Object^ source, EventArgs^ e )
      {
         MessageBox::Show( "The process has exited." );
      }
   };

public:
   MyButton^ button1;
private:
   void MyProcessExited( Object^ source, EventArgs^ e )
   {
       MessageBox::Show( "The process has exited." );
   }
   void button1_Click( Object^ sender, EventArgs^ e )
   {
      Process^ myProcess = gcnew Process;
      ProcessStartInfo^ myProcessStartInfo = gcnew ProcessStartInfo( "mspaint" );
      myProcess->StartInfo = myProcessStartInfo;
      myProcess->Start();
      myProcess->Exited += gcnew System::EventHandler( this, &Form1::MyProcessExited );

      // Set 'EnableRaisingEvents' to true, to raise 'Exited' event when process is terminated.
      myProcess->EnableRaisingEvents = true;

      // Set method handling the exited event to be called  ;
      // on the same thread on which MyButton was created.
      myProcess->SynchronizingObject = button1;
      MessageBox::Show( "Waiting for the process 'mspaint' to exit...." );
      myProcess->WaitForExit();
      myProcess->Close();
   }

    private MyButton button1;
    private void button1_Click(object sender, System.EventArgs e)
    {
        using (Process myProcess = new Process())
        {
            ProcessStartInfo myProcessStartInfo = new ProcessStartInfo("mspaint");
            myProcess.StartInfo = myProcessStartInfo;
            myProcess.Start();
            myProcess.Exited += new EventHandler(MyProcessExited);
            // Set 'EnableRaisingEvents' to true, to raise 'Exited' event when process is terminated.
            myProcess.EnableRaisingEvents = true;
            // Set method handling the exited event to be called  ;
            // on the same thread on which MyButton was created.
            myProcess.SynchronizingObject = button1;
            MessageBox.Show("Waiting for the process 'mspaint' to exit....");
            myProcess.WaitForExit();
        }
    }
    private void MyProcessExited(Object source, EventArgs e)
    {
        MessageBox.Show("The process has exited.");
    }
}

public class MyButton : Button
{
}

    Private button1 As MyButton
    Private Sub button1_Click(sender As Object, e As EventArgs)
        Using myProcess As New Process()
            Dim myProcessStartInfo As New ProcessStartInfo("mspaint")
            myProcess.StartInfo = myProcessStartInfo
            myProcess.Start()
            AddHandler myProcess.Exited, AddressOf MyProcessExited
            ' Set 'EnableRaisingEvents' to true, to raise 'Exited' event when process is terminated.
            myProcess.EnableRaisingEvents = True
            ' Set method handling the exited event to be called  ;
            ' on the same thread on which MyButton was created.
            myProcess.SynchronizingObject = button1
            MessageBox.Show("Waiting for the process 'mspaint' to exit....")
            myProcess.WaitForExit()
        End Using
    End Sub

    Private Sub MyProcessExited(source As Object, e As EventArgs)
        MessageBox.Show("The process has exited.")
    End Sub
End Class

Public Class MyButton
    Inherits Button

End Class

備註

當 是 null時SynchronizingObject，會從系統線程集區在線程上呼叫處理Exited事件的方法。 如需系統線程集區的詳細資訊，請參閱 ThreadPool。

Exited當視覺效果 Windows Forms元件處理事件時，例如 Button，透過系統線程集區存取元件可能無法運作，或可能會導致例外狀況。 將 設定SynchronizingObject為 Windows Forms元件來避免這種情況，這會導致處理Exited事件的方法在建立元件的相同線程上呼叫。

Process如果在 Windows Forms 設計工具的 Visual Studio 2005 內使用 ，SynchronizingObject則會自動設定為包含的Process控件。 例如，如果您在設計工具Form1上放置 Process ， (繼承自 Form) SynchronizingObject 的 屬性Process會設定為 的Form1實例：

this->process1->StartInfo->Domain = "";
this->process1->StartInfo->LoadUserProfile = false;
this->process1->StartInfo->Password = nullptr;
this->process1->StartInfo->StandardErrorEncoding = nullptr;
this->process1->StartInfo->StandardOutputEncoding = nullptr;
this->process1->StartInfo->UserName = "";
this->process1->SynchronizingObject = this;

process1.StartInfo.Domain = "";
process1.StartInfo.LoadUserProfile = false;
process1.StartInfo.Password = null;
process1.StartInfo.StandardErrorEncoding = null;
process1.StartInfo.StandardOutputEncoding = null;
process1.StartInfo.UserName = "";
process1.SynchronizingObject = this;

process1.StartInfo.Domain = ""
process1.StartInfo.LoadUserProfile = False
process1.StartInfo.Password = Nothing
process1.StartInfo.StandardErrorEncoding = Nothing
process1.StartInfo.StandardOutputEncoding = Nothing
process1.StartInfo.UserName = ""
process1.SynchronizingObject = Me

一般而言，當元件放在控件或窗體內時，就會設定這個屬性，因為這些元件會系結至特定的線程。

另請參閱

• SynchronizingObject