Process.Refresh Method

Discards any information about the associated process that has been cached inside the process component.

Namespace:  System.Diagnostics
Assembly:  System (in System.dll)

public void Refresh()

After Refresh is called, the first request for information about each property causes the process component to obtain a new value from the associated process.

When a Process component is associated with a process resource, the property values of the Process are immediately populated according to the status of the associated process. If the information about the associated process subsequently changes, those changes are not reflected in the Process component's cached values. The Process component is a snapshot of the process resource at the time they are associated. To view the current values for the associated process, call the Refresh method.

The following example starts an instance of Notepad. It then retrieves the physical memory usage of the associated process at 2 second intervals for a maximum of 10 seconds. The example detects whether the process exits before 10 seconds have elapsed. The example closes the process if it is still running after 10 seconds.

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

namespace Process_Sample
{
   class MyProcessClass
   {
      public static void Main()
      {
         try
         {
            Process myProcess;
            myProcess = Process.Start("Notepad.exe");
            // Display physical memory usage 5 times at intervals of 2 seconds. 
            for (int i = 0;i < 5; i++)
            {
               if (!myProcess.HasExited)
               {
                   // Discard cached information about the process.
                   myProcess.Refresh();
                   // Print working set to console.
                   Console.WriteLine("Physical Memory Usage: " 
                                        + myProcess.WorkingSet.ToString());
                   // Wait 2 seconds.
                   Thread.Sleep(2000);
               }
               else {
                   break;
               } 
            }

            // Close process by sending a close message to its main window.
            myProcess.CloseMainWindow();
            // Free resources associated with process.
            myProcess.Close();

         }
         catch(Exception e)
         {
            Console.WriteLine("The following exception was raised: ");
            Console.WriteLine(e.Message);
         }
      }
   }
}

  • LinkDemand 

    for full trust for the immediate caller. This member cannot be used by partially trusted code.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0
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