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Accepted
Iván Rodríguez
Asked: 2022-04-06 18:43:34 +0800 CST 2022-04-06 18:43:34 +0800 CST

How to properly implement an interface variable? (set; get; methods) C#

  • 772

I'm trying to implement a variable from an interface and I can't do it... with functions it works great but with variables it gets stuck as if I were in an infinite loop.

///-------------------------------------------------- 

public interface Interface
{
    string Func();
    int id {get;set;}   
}

///-------------------------------------------------- 

public class Implemetador : Interface
{   
    public Implemetador(){}

    string Func() //-->sin problemas
    {
       return "id=";
    }

    public int id  //-->bloqueado
    {
        set{id = value;}
        get{return 55;}     
    }
}

///--------------------------------------------------

public class Test
{
    static void Main()
    {
        Implemetador i = new Implemetador();                
        Console.Write(i.Func() + i.id);  
    }
}

///--------------------------------------------------

The way to implement it I got from here page 16.

https://profesorezequielruizgarcia.files.wordpress.com/2014/10/poo-csharp.pdf

I think they are notes from some university and it doesn't give errors when compiling so I don't understand why it doesn't work...

Any idea what it could be?

c#

1 Answers

  1. Best Answer

    This code creates a recursive call that will never stop

    public int id  //-->bloqueado
{
    set{id = value;}
    get{return 55;}     
}

    The call to set is also a call to the propertyid

    set{id = value;}

    I recommend changing the implementation of the property to the following:

    public int Id  //Id con mayuscula (o cualquier otro nombre) diferente al campo id
{
    set{id = value;}
    get{return 55;}     
}
    • 3