ManagementScope.Connect Method

Definition

Namespace:

System.Management

Assembly:

System.Management.dll

Package:

System.Management v9.0.0

Source:

ManagementScope.cs

Connects this ManagementScope to the actual WMI scope.

public:
 void Connect();

public void Connect ();

member this.Connect : unit -> unit

Public Sub Connect ()

Examples

The following example initializes a new ManagementScope with a specific path and then connects the scope object to a WMI namespace. The example connects to a namespace on a remote computer.

using System;
using System.Management;
public class RemoteConnect
{
    public static void Main()
    {
        /*// Build an options object for the remote connection
        //   if you plan to connect to the remote
        //   computer with a different user name
        //   and password than the one you are currently using

             ConnectionOptions options =
                 new ConnectionOptions();

             // and then set the options.Username and
             // options.Password properties to the correct values
             // and also set
             // options.Authority = "ntlmdomain:DOMAIN";
             // and replace DOMAIN with the remote computer's
             // domain.  You can also use Kerberos instead
             // of ntlmdomain.
        */

        // Make a connection to a remote computer.
        // Replace the "FullComputerName" section of the
        // string "\\\\FullComputerName\\root\\cimv2" with
        // the full computer name or IP address of the
        // remote computer.
        ManagementScope scope =
            new ManagementScope(
            "\\\\FullComputerName\\root\\cimv2");
        scope.Connect();

        // Use this code if you are connecting with a
        // different user name and password:
        //
        // ManagementScope scope =
        //    new ManagementScope(
        //        "\\\\FullComputerName\\root\\cimv2", options);
        // scope.Connect();

        //Query system for Operating System information
        ObjectQuery query = new ObjectQuery(
            "SELECT * FROM Win32_OperatingSystem");
        ManagementObjectSearcher searcher =
            new ManagementObjectSearcher(scope,query);

        ManagementObjectCollection queryCollection = searcher.Get();
        foreach ( ManagementObject m in queryCollection)
        {
            // Display the remote computer information
            Console.WriteLine("Computer Name : {0}",
                m["csname"]);
            Console.WriteLine("Windows Directory : {0}",
                m["WindowsDirectory"]);
            Console.WriteLine("Operating System: {0}",
                m["Caption"]);
            Console.WriteLine("Version: {0}", m["Version"]);
            Console.WriteLine("Manufacturer : {0}",
                m["Manufacturer"]);
        }
    }
}

Imports System.Management
Public Class RemoteConnect

    Public Overloads Shared Function Main( _
    ByVal args() As String) As Integer


        ' Build an options object for the remote connection
        ' if you plan to connect to the remote
        ' computer with a different user name
        ' and password than the one you are currently using

        ' Dim options As ConnectionOptions 
        ' options = new ConnectionOptions()

        ' Then set the options.Username and 
        ' options.Password properties to the correct values
        ' and also set 
        ' options.Authority = "ntlmdomain:DOMAIN"
        ' and replace DOMAIN with the remote computer's
        ' domain.  You can also use Kerberos instead
        ' of ntlmdomain.


        ' Make a connection to a remote computer.
        ' Replace the "FullComputerName" section of the
        ' string "\\FullComputerName\root\cimv2" with
        ' the full computer name or IP address of the
        ' remote computer.
        Dim scope As ManagementScope
        scope = New ManagementScope( _
            "\\FullComputerName\root\cimv2")
        scope.Connect()

        ' Use this code if you are connecting with a 
        ' different user name and password:
        '
        ' Dim scope As ManagementScope
        ' scope = New ManagementScope( _
        '     "\\FullComputerName\root\cimv2", options)
        ' scope.Connect()

        ' Query system for Operating System information
        Dim query As ObjectQuery
        query = New ObjectQuery( _
            "SELECT * FROM Win32_OperatingSystem")
        Dim searcher As ManagementObjectSearcher
        searcher = _
            New ManagementObjectSearcher(scope, query)

        Dim queryCollection As ManagementObjectCollection
        queryCollection = searcher.Get()

        Dim m As ManagementObject
        For Each m In queryCollection
            ' Display the remote computer information
            Console.WriteLine("Computer Name : {0}", _
                m("csname"))
            Console.WriteLine("Windows Directory : {0}", _
                m("WindowsDirectory"))
            Console.WriteLine("Operating System: {0}", _
                m("Caption"))
            Console.WriteLine("Version: {0}", m("Version"))
            Console.WriteLine("Manufacturer : {0}", _
                m("Manufacturer"))
        Next

        Return 0
    End Function
End Class

Remarks

This method is called implicitly when the scope is used in an operation that requires it to be connected. Calling it explicitly allows the user to control the time of connection. This method will return within two minutes.

.NET Framework Security

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.