C# – Call base constructor and other constructor in constructor

cconstructorinheritancenet

Title may sound confusing.
What I want is to call a constructor of the same class and the constructor of the base class inside a constructor.
Maybe my first attempt to solve that may explain my question:

public MyClass(MyClass obj) : base(obj),this() {}

But that notation isn't working.
Is there any solution to solve that?

Best Answer

No, you can't do it for the following reason:

When a constructor calls the constructor of its base, the latter call is THE PART of the constructor in question. So you can't call another constructor of the same class AND a constructor of a base class because the former call already contains a call to a base constructor - you can't initialize your base twice

Related Solutions

C# – the difference between String and string in C#

string is an alias in C# for System.String.
So technically, there is no difference. It's like int vs. System.Int32.

As far as guidelines, it's generally recommended to use string any time you're referring to an object.

e.g.

string place = "world";

Likewise, I think it's generally recommended to use String if you need to refer specifically to the class.

e.g.

string greet = String.Format("Hello {0}!", place);

This is the style that Microsoft tends to use in their examples.

It appears that the guidance in this area may have changed, as StyleCop now enforces the use of the C# specific aliases.

C# – Calling the base constructor in C#

Modify your constructor to the following so that it calls the base class constructor properly:

public class MyExceptionClass : Exception
{
    public MyExceptionClass(string message, string extrainfo) : base(message)
    {
        //other stuff here
    }
}

Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your call in the constructor body.

Best Answer

Related Solutions

C# – the difference between String and string in C#

This is the style that Microsoft tends to use in their examples.

C# – Calling the base constructor in C#

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