protected override TreeNodeCollection GetTreeNodes(string id, FormDataCollection queryStrings) { TreeNodeCollection nodes = new TreeNodeCollection(); using (var db = DatabaseContext.Database) { var userRoleHelper = new UserRoleHelper(db); if (id == "-1") { foreach (var user in userRoleHelper.GetUsers()) { nodes.Add(CreateTreeNode("nodeId", id, queryStrings, user.UserName, "icon-user", CreateRoute("userSettings", user.Id))); } } return(nodes); } }