无法访问容器视图的tableview控制器元素

I have a view controller (vc1) which has a container view and below that it has a save button . Container view is embed segued to tableview controller(tvc1) having static cells . Each cell has labels and textfields. I am trying to get the contents of textfields in tvc1 in vc1 . I tried two methods :I have a view controller (vc1) which has a cont