How to Remove a Category from a Windows Driver

아티클
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, you remove a category from a Windows driver by removing the unique identifier for the category from the SMS_Driver Server WMI ClassCategoryInstance_UniqueIDs array property.

To remove a category from a Windows driver

Set up a connection to the SMS Provider. For more information, see About the SMS Provider in Configuration Manager.
Get the SMS_Driver object for the driver that you want remove the category from.
Get the category name identifier from the SMS_CategoryInstance Server WMI Class object that matches the desired category.
Remove the category identifier from the SMS_Driver Server WMI Class object CategoryInstance_UniqueIDs array property.
Commit the SMS_Driver Server WMI Class changes.

Example

The following example method removes a category from a Windows driver. driverID is a valid SMS_Driver Server WMI Class object. For more information, see About Operating System Deployment Driver Management.

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

Sub RemoveDriverCategory(connection,driver,categoryName)

    Dim results
    Dim driverCategoryID
    Dim category
    Dim categories 
    Dim i
    
    If IsNull(driver.CategoryInstance_UniqueIDs) _
           or UBound (driver.CategoryInstance_UniqueIDs) = -1 Then
        ' There are no categories, so quit.
        Wscript.Echo "No categories found"
        Exit Sub
    End If  
 
     Set results = _
      connection.ExecQuery("SELECT * From SMS_CategoryInstance WHERE LocalizedCategoryInstanceName = '" _
      + categoryName+ "'")
          
    ' If the category was found, delete, if it is there, from the driver.
    For Each category In results
   
        ' Destination for copied categories.
        categories = Array(driver.CategoryInstance_UniqueIDs)
        i=0 
               
        For Each driverCategoryID in driver.CategoryInstance_UniqueIDs
            If driverCategoryID = category.CategoryInstance_UniqueID Then
                ' Found it, so skip it.
                 Redim Preserve categories (UBound(categories))
            Else
                ' Copy the category.
                categories(i) = driverCategoryID
                i=i+1
            End If 
        Next 
        
        ' Make sure the array is empty.
        if i = 0  Then
            Redim categories(-1)
        End If
            
         driver.CategoryInstance_UniqueIDs = categories
         driver.Put_
    Next
End Sub

public void RemoveDriverCategory(WqlConnectionManager connection,
    IResultObject driver,
    string categoryName)
{
    try
    {
        // Get the category.
        IResultObject results = 
            connection.QueryProcessor.ExecuteQuery(
            "SELECT * From SMS_CategoryInstance WHERE LocalizedCategoryInstanceName = '" 
            + categoryName 
            + "'");

        ArrayList driverCategories = new ArrayList(driver["CategoryInstance_UniqueIDs"].StringArrayValue);

        // Remove the category from the driver.
        foreach (IResultObject category in results)
        {
            driverCategories.Remove(category["CategoryInstance_UniqueID"].StringValue);
        }

        // Update the driver.
        driver["CategoryInstance_UniqueIDs"].StringArrayValue = (string[])driverCategories.ToArray(typeof(string));
        driver.Put();
    }
    catch(SmsException e)
    {
        Console.WriteLine("Failed to remove category :" + e.Message);
        throw;
    }
}

The example method has the following parameters:

Parameter	Type	Description
Connection	Managed:WqlConnectionManager VBScript: SWbemServices	A valid connection to the SMS Provider.
driver	Managed: IResultObject VBScript: SWbemObject	The Windows driver. It is an instance of SMS_Driver Server WMI Class.
categoryName	Managed: String VBScript: String	The name of an existing category. This matches the SMS_CategoryInstance Server WMI Classe LocalizedCategoryInstanceName property.

Compiling the Code

This C# example requires:

Namespaces

System

System.Collections.Generic

System.Text

Microsoft.ConfigurationManagement.ManagementProvider

Microsoft.ConfigurationManagement.ManagementProvider.WqlQueryEngine

Assembly

microsoft.configurationmanagement.managementprovider

adminui.wqlqueryengine

Robust Programming

For more information about error handling, see About Configuration Manager Errors.

Security

For more information about securing Configuration Manager applications, see About Securing Configuration Manager Applications.

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