InvokeMethodOptions Constructor (ManagementNamedValueCollection, TimeSpan)

 

Initializes a new instance of the InvokeMethodOptions class for an invoke operation using the specified values.

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

Public Sub New (
	context As ManagementNamedValueCollection,
	timeout As TimeSpan
)

Parameters

context
Type: System.Management.ManagementNamedValueCollection

A provider-specific, named-value pairs object to be passed through to the provider.

timeout
Type: System.TimeSpan

The length of time to let the operation perform before it times out. The default value is MaxValue. Setting this parameter will invoke the operation semisynchronously.

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

The following example invokes the Win32_Process::Create method to start a new process of Calc.exe. The InvokeMethodOptions class is used to invoke the method.

Imports System
Imports System.Management

' This sample demonstrates invoking
' a WMI method using parameter objects
Class InvokeMethod
    Public Overloads Shared Function _
        Main(ByVal args() As String) As Integer

        ' Get the object on which the
        ' method will be invoked
        Dim processClass As _
            New ManagementClass("root\CIMV2", _
            "Win32_Process", _
            Nothing)

        ' Get an input parameters object for this method
        Dim inParams As ManagementBaseObject = _
            processClass.GetMethodParameters("Create")

        ' Fill in input parameter values
        inParams("CommandLine") = "calc.exe"

        ' Method Options
        Dim methodOptions As New InvokeMethodOptions( _
            Nothing, System.TimeSpan.MaxValue)

        ' Execute the method
        Dim outParams As ManagementBaseObject = _
            processClass.InvokeMethod( _
            "Create", inParams, methodOptions)

        ' Display results
        ' Note: The return code of the method 
        ' is provided in the "returnValue" property
        ' of the outParams object
        Console.WriteLine( _
            "Creation of calculator process returned: {0}", _
            outParams("returnValue"))
        Console.WriteLine("Process ID: {0}", _
            outParams("processId"))

        Return 0
    End Function
End Class

.NET Framework
Available since 1.1
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