how to adjust “is a type but is used like a variable”?

Question

I\'m trying to generate some code in a web service. But it\'s returning 2 errors:

1) List is a type but is used like a variable

2) No overload for method \

Answer 1

To answer your second question:

You either need to create a constructor that takes the three arguments:

public Customer(string a_name, string a_surname, string a_number)
{
     Name = a_name;
     SurName = a_surname;
     Number = a_number;
}

or set the values after the object has been created:

Customer customer = new Customer();
customer.Name = "yusuf";
customer.SurName = "karatoprak";
customer.Number = "123456";
li.Add(customer);