SharePoint : Get current Navigation using the Object Model

Use below method to get the Quick Launch information from the current web.

public static void QuickLaunch()
        {
            using (SPSite site = new SPSite(strSiteCollectionURl))
            {
                using (SPWeb web = site.OpenWeb()) //Can user SPContext.Current.Web
                {
                    SPNavigationNodeCollection quickLaunchNodes = web.Navigation.QuickLaunch;

                    //Parent
                    foreach (SPNavigationNode node in quickLaunchNodes)
                    {
                        string strParentTitle = node.Title;
                        string strParentURL = node.Url.ToString();
                        Console.WriteLine("Parent : "+strParentTitle + " : " + strParentURL);
                        //Children
                        SPNavigationNodeCollection children = node.Children;
                        foreach (SPNavigationNode child in children)
                        {
                            string strTitle =child.Title;
                            string strURL = child.Url.ToString();
                            Console.WriteLine("Child : " + strTitle + " : " + strURL);
                        }
                    }

                    Console.ReadKey();
                }
            }
        }