How should I create a list that'll be returned when method is called and it contains two lists, each one contains four tuples?

Question

I created a method that has two lists; each one has four tuples, and I want the two lists to be returned when the method is called. I tried creating a new list to do so, but it can't accept a tuple into a list. Is there a way to convert a tuple into a list?

How should I create a list that'll be returned when method is called and it contains two lists, each one contains four tuples?

Below is a code similar to what I'm working on: *Note: the reason I needed to use tuples is to be able to access and display them using XAML.

var listStudents1 = new List<Tuple<string, string, string>>

{

               Tuple.Create("A", "Roya Taymoor", "USA"),

               Tuple.Create("B", "Michael Stevens", "UK" ),

               Tuple.Create("C", "Steve Barnes", "UK" )

};
var listStudnets2 = new List<Tuple<string, string, string>>

{

               Tuple.Create("C", "Liam Cook", "USA"),

               Tuple.Create("D", "Arianda Reggi", "France" ),

               Tuple.Create("E", "Amy Ronald", "UK" )

}; 
StudentsLists.Add(listStudents1); //StudentsLists is a previously defnded property/list in the class that accepts string. 
StudentsLists.Add(listStudents2);
return StudentsLists;  

Answer 1

Just use List<whateverYouWantToReturn> in your case like this below one.

public  List<List<Tuple<string, string, string>>> GetStudents(){
    var listStudents1 = new List<Tuple<string, string, string>>

{
    Tuple.Create("A", "Roya Taymoor", "USA"),
    Tuple.Create("B", "Michael Stevens", "UK" ),
    Tuple.Create("C", "Steve Barnes", "UK" )

};
var listStudnets2 = new List<Tuple<string, string, string>>

{
  Tuple.Create("C", "Liam Cook", "USA"),
  Tuple.Create("D", "Arianda Reggi", "France" ),
  Tuple.Create("E", "Amy Ronald", "UK" )

};  
    var result = new  List<List<Tuple<string, string, string>>>();
    result.Add(listStudents1);
    result.Add(listStudnets2);
    return result;
}