/// 

        /// Gets the user management URL.

        /// 

        /// The portal id.

        /// 

        protected string GetUserManagementUrl(int portalId)

        {

            int userManagementTabId = GetTabIdForCurrentPortal(AppConfiguration.UserManagementTabName);

            int moduleId = GetModuleId(userManagementTabId, AppConfiguration.UserManagementModuleName);

            string[] param = new string[4];

            param[0] = Constants.MODULE_ID_NAME;

            param[1] = moduleId.ToString();

            param[2] = Constants.PORTAL_ID_PARAMETER;

            param[3] = portalId.ToString();

            DotNetNuke.Common.Globals.ApplicationURL();

            return DotNetNuke.Common.Globals.NavigateURL(userManagementTabId, AppConfiguration.UserManagementControlName, param);

        }

        /// 

        /// Gets the tab id for current portal.

        /// 

        /// Name of the tab.

        /// 

        protected virtual int GetTabIdForCurrentPortal(string tabName)

        {

            TabController tabController = new TabController();

            TabInfo tabInfo = tabController.GetTabByName(tabName, PortalId);

            return tabInfo.TabID;

        }

        /// 

        /// Gets the tab id for portal.

        /// 

        /// Name of the tab.

        /// The portal id.

        /// 

        protected virtual int GetTabIdForPortal(string tabName, int portalId)

        {

            TabController tabController = new TabController();

            TabInfo tabInfo = tabController.GetTabByName(tabName, portalId);

            return tabInfo.TabID;

        }

        /// 

        /// Gets the module id.

        /// 

        /// The tab id.

        /// Name of the module.

        /// 

        protected virtual int GetModuleId(int tabId, string moduleName)

        {

            ModuleController moduleController = new ModuleController();

            Dictionary<int, ModuleInfo> genericModuleInfos = moduleController.GetTabModules(tabId);

            ModuleInfo selectedModule = null;

            foreach (KeyValuePair<int, ModuleInfo> pair in genericModuleInfos)

            {

                if (pair.Value.ModuleName.Equals(moduleName, StringComparison.InvariantCultureIgnoreCase))

                    selectedModule = pair.Value;

            }

            if (selectedModule != null)

                return selectedModule.ModuleID;

            return -1;

        }

        /// 

        /// Gets the user count for the passed in portal id.

        /// 

        /// The portal id.

        /// 

        protected virtual int GetPortalUserCount(int portalId)

        {

            MembershipProvider membershipProvider = MembershipProvider.Instance();

            return membershipProvider.GetUserCountByPortal(portalId);

        }