SPNavigationNodeCollection.Add método

public SPNavigationNode Add(
	SPNavigationNode node,
	SPNavigationNode previousNode
)

public override void FeatureActivated(SPFeatureReceiverProperties properties)
{
    // Get the web site where the feature is activated.
    SPWeb web = properties.Feature.Parent as SPWeb;
    if (web == null)
        return;

    // Get the Meeting Notes document library.
    SPList meetingNotes = web.Lists.TryGetList("Meeting Notes");
    if (meetingNotes == null)
    {
        // Create the library if it does not exist.
        Guid listId = web.Lists.Add("Meeting Notes", "An archive for meeting notes.", SPListTemplateType.DocumentLibrary);
        meetingNotes = web.Lists.GetList(listId, false);
    }

    // Check for an existing Quick Launch node for Meeting Notes.
    SPNavigationNode meetingNotesNode = web.Navigation.GetNodeByUrl(meetingNotes.DefaultViewUrl);

    // If a Meeting Notes node exists on Quick Launch, nothing more to do.
    if (meetingNotesNode != null)
        return;

    // Still here, so create a node for Meeting Notes.
    meetingNotesNode = new SPNavigationNode(meetingNotes.Title, meetingNotes.DefaultViewUrl);

    // Get the Libraries heading.
    SPNavigationNode librariesHeading = web.Navigation.GetNodeById((int)SPQuickLaunchHeading.Documents);

    // If the Libraries heading does not exist or it exists but has no items below it,
    // then Meeting Notes will be the first item.
    if (librariesHeading == null || librariesHeading.Children.Count == 0)
    {
        web.Navigation.AddToQuickLaunch(meetingNotesNode, SPQuickLaunchHeading.Documents);
        return;
    }

    // The Libraries heading exists. Now check for an item linking to Shared Documents.
    // If a node for Shared Documents exists, Meeting Notes will go after it.
    SPList sharedDocs = web.Lists.TryGetList("Shared Documents");
    SPNavigationNode sharedDocsNode = null;
    if (sharedDocs != null)
        sharedDocsNode = librariesHeading
            .Children
            .Cast<SPNavigationNode>()
            .FirstOrDefault(n => n.Url == sharedDocs.DefaultViewUrl);

    // A node for Shared Documents does not exist. Make Meeting Notes the first item.
    if (sharedDocsNode == null)
    {
        librariesHeading.Children.AddAsFirst(meetingNotesNode);
        return;
    }

    // A node for Shared Documents exists. Place Meeting Notes after it.
    librariesHeading.Children.Add(meetingNotesNode, sharedDocsNode);

    web.Dispose();
}