How many destructors can we have in one class in C#?

In c#, Destructor is a special method of a class and it is used inside a class to destroy the object or instances of classes.

There can be only one destructor inside a class

Following are the properties of destructor in c#

• Destructors will not take any parameters

• Destructors will begin with a tilde symbol(~)

• Destructors (~) cannot be defined in Structs.

• Destructor cannot be called. They are invoked automatically.

• Destructor implicitly calls Finalize on the base class of object.

Example

class Demo{
   ~Demo(){ //Finalizer
      // cleanup statements...
   }
}
class Program{
   static void Main(){
      Console.ReadLine();
   }
}

The finalizer implicitly calls Finalize on the base class of the object. Therefore, a call to a finalizer is implicitly translated to the following code −

protected override void Finalize(){
   try{
      // Cleanup statements...
   }
   finally{
      base.Finalize();
   }
}

The programmer has no control over when the finalizer is called

If we declare more than one destructor then the compiler will throw an error. 

'Demo' already defines a member called '~Demo'

class Demo{
   ~Demo(){
   }
   ~Demo(){
   }
}
class Program{
   static void Main(){
      Console.ReadKey();
   }
}

Nizamuddin Siddiqui

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Updated on: 04-Aug-2020

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