How to Add a Configuration Manager Context Qualifier by Using Managed Code

Artikel
05/03/2011

Applies To: System Center Configuration Manager 2007, System Center Configuration Manager 2007 R2, System Center Configuration Manager 2007 R3, System Center Configuration Manager 2007 SP1, System Center Configuration Manager 2007 SP2

In Microsoft System Center Configuration Manager 2007, to add a context qualifier by using the managed SMS Provider, use the Context property which is a Dictionary object that holds context qualifiers.

Typically you will add your application name to the ApplicationName context qualifier, along with the computer name (MachineName) and Locale identifier (LocaleID).

To add Configuration Manager context qualifier

Set up a connection to the SMS Provider. For more information, see How to Connect to an SMS Provider in Configuration Manager by Using Managed Code
Get the SmsNamedValuesDictionary object from the WqlConnectionManager object that you get from step 1.
Add the context qualifiers as required.

Example

The following C# example first adds a number of context qualifiers to a WQLConnectionManager object Context dictionary property. It then displays a list of the context qualifiers in dictionary object.

Note

WqlConnectionManager derives from ConnectionManagerBase.

In the example, the LocaleID context qualifier is hard-coded to English (U.S.). If you need the locale for non-U.S. installations, you can get it from the SMS_Identification Server WMI ClassLocaleID property.

For information about calling the sample code, see Calling Configuration Manager Code Snippets.

public void AddContextQualifiers(WqlConnectionManager connection)
{
    try
    {
        connection.Context.Add("ApplicationName", "My application name");
        connection.Context.Add("MachineName","Computername");
        connection.Context.Add("LocaleID", @"MS\1033");

        foreach (KeyValuePair<string, object> namedValue in connection.Context)
        {
            Console.WriteLine(namedValue.Key);
            Console.WriteLine(namedValue.Value);
            Console.WriteLine();
        }
    }
    catch (SmsException e)
    {
        Console.WriteLine("Failed to add context qualifier : " + e.Message);
    }
}

The example method has the following parameters:

Parameter	Type	Description
connection	WqlConnectionManager	A valid connection to the SMS Provider.

Compiling the Code

Namespaces

System

System.Collections.Generic

System.ComponentModel

Microsoft.ConfigurationManagement.ManagementProvider

Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine

Assembly

microsoft.configurationmanagement.managementprovider

adminui.wqlqueryengine

Robust Programming

The Configuration Manager exceptions that can be raised are SmsConnectionException and SmsQueryException. These can be caught together with SmsException.

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