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CompletedEventArgs Class
Visual Studio 2008
Holds event data for the Completed event.
Assembly: System.Management (in System.Management.dll)
The following example calls a method asynchronously. The Win32_Process.Create method is called to create a new process for Calc.exe.
Imports System Imports System.Management Public Class InvokeMethodAsync Private isFinished As Boolean = False Private returnObj As ManagementBaseObject Public Sub New() ' Get the object on which the method ' will be invoked Dim processClass As ManagementClass = _ New ManagementClass("Win32_Process") ' Create a results and completion handler Dim handler As ManagementOperationObserver = _ New ManagementOperationObserver AddHandler handler.Completed, _ AddressOf Me.Completed ' Invoke method asynchronously Dim inParams As ManagementBaseObject = _ processClass.GetMethodParameters("Create") inParams("CommandLine") = "calc.exe" processClass.InvokeMethod( _ handler, "Create", inParams, Nothing) ' Do something while method is executing While (Not Me.IsComplete) System.Threading.Thread.Sleep(1000) End While End Sub ' Property allows accessing the result ' object in the main function Private Function ReturnObject() As ManagementBaseObject Return returnObj End Function ' Delegate called when the method completes ' and results are available Private Sub NewObject(ByVal sender As Object, _ ByVal e As ObjectReadyEventArgs) Console.WriteLine("New Object arrived!") returnObj = e.NewObject End Sub ' Used to determine whether the method ' execution has completed Private Function IsComplete() As Boolean Return isFinished End Function Private Sub Completed(ByVal sender As Object, _ ByVal e As CompletedEventArgs) isFinished = True Console.WriteLine("Completed method invocation.") End Sub Public Shared Function _ Main(ByVal args() As String) As Integer Dim invokeMethod As New InvokeMethodAsync Return 0 End Function End Class
System.Object
System.EventArgs
System.Management.ManagementEventArgs
System.Management.CompletedEventArgs
System.EventArgs
System.Management.ManagementEventArgs
System.Management.CompletedEventArgs
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
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.
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