Programmatically Configure Quick Launch in SharePoint

SPSecurity.RunWithElevatedPrivileges(delegate()

                {

                    using (SPSite spSite = new SPSite(siteUrl))

                    {

                        using (SPWeb spWeb = spSite.OpenWeb())

                        {

                            PublishingWeb publishingWeb =PublishingWeb.GetPublishingWeb(spWeb);

                            publishingWeb.Navigation.ShowSiblings = false;

                            publishingWeb.Update();

                            //First delete all the items in quick launch

                            for (int i = spWeb.Navigation.QuickLaunch.Count - 1; i > -1; i--)

                            {

                                spWeb.Navigation.QuickLaunch[i].Delete();

                            }

                            spWeb.Update();

                            //Add items to Quick Launch

                           

                            SPNavigationNodeCollection nodes = spWeb.Navigation.QuickLaunch;

                            //Meetings

                            SPNavigationNode navNode = newSPNavigationNode("Meetings", spWeb.Url + "/Pages/My-Meetings.aspx");

                            nodes.AddAsFirst(navNode);

                            lst = spWeb.Lists[Constants.DiscussionForumName];

                            navNode = new SPNavigationNode("Discussions", lst.DefaultViewUrl);

                            nodes.AddAsFirst(navNode);                          

                           

                            //Quick Launch item - Contacts

                            navNode.Title = "Contacts";

                            navNode.Url= spWeb.Url +"/Pages/ProjectContacts.aspx";                                                       

                            nodes.AddAsFirst(navNode);   

                            //Quick Launch Item - Issues

                            lst = spWeb.Lists[Constants.LstIssues];

                            navNode.Title = "Issues";

                            navNode.Url = lst.DefaultViewUrl;                           

                            nodes.AddAsFirst(navNode);

                           

                            //Quick Launch item - Gannt Chart

                            lst = spWeb.Lists[Constants.LstTasks];//"Project Milestones"

                            navNode.Title = "Gantt Chart";

                            navNode.Url = lst.Views.Cast<SPView>().FirstOrDefault(v => v.Title.ToString() == "gantt").Url;

                            //navNode.Url = lst.DefaultViewUrl;

                            nodes.AddAsFirst(navNode);

                            //Quick Launch item - Project Documents                         

                            navNode.Title ="Documents";                           

                            navNode.Url = spWeb.Url +"/Pages/Document.aspx";

                            nodes.AddAsFirst(navNode);

                            //Home

                            navNode = new SPNavigationNode("Home", spWeb.Url, true);

                            nodes.AddAsFirst(navNode);

                            publishingWeb.Update();

                           

                            spWeb.Update();

                        }

                    }

                });