c# - How set initial state of object, without 'this' assignment -

i have class property capacity, when capacity = 0, object must sets in initial state. method initstate(), because can't create new instance , assignment this. there way use this or way set initial state?

public class test {   private int _field1 = -1;   private int[] _array;   ...    public test() : this(0) { }          public test(int capacity) {     _array = new int[capacity];   }   ...   public int capacity {     { return _array.length; }     set     {       //not working        //if(value == 0) = new test();       if(value == 0) initstate();       ...     }   }    //sets fields in default state   private void initstate() {     _field1 = -1;     _array = new int[0];     ...   } } 

no, can't assign value you're code correct