How sub-assembly method defined in the parent component passed to call it?

   // Food components (a general assembly, is that pop up pictures of food)

 

 Parent component method is called sub-component object:

　　　　1. To obtain the object subassembly

　　　　　　By specifying a subassembly ref = "Food"

　　　　　　

 

　　　　 2. Define your own way in the sub-components:

　　　　　　

 

 

 　　　　3. Where the need to call:

　　　　　　

 

 　　　　　Father transfer using props to the child