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What are Deconstructors in C# 7.0?
C# allows to use multiple deconstructor methods in the same program with the same number of out parameters or the same number and type of out parameters in a different order.
It's a part of the new tuple syntax - which has nothing to do with the Tuple<> classes but is taking from functional programming.
Deconstruct keyword is used for Deconstructors
Example
public class Employee{ public Employee(string employeename, string firstName, string lastName){ Employeename = employeename; FirstName = firstName; LastName = lastName; } public string Employeename { get; } public string FirstName { get; } public string LastName { get; } public void Deconstruct(out string employeename, out string firstName, out string lastName){ employeename = Employeename; firstName = FirstName; lastName = LastName; } } class Program{ public static void Main(){ Employee employee = new Employee("emp", "fname", "lname"); (string EName, string Fname, string Lname) = employee; System.Console.WriteLine(EName); System.Console.WriteLine(Fname); System.Console.WriteLine(Lname); Console.ReadLine(); } }
Output
emp fname lname
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