C# How can I call an interface method from my derived class [duplicate]

Question

I have a class that implements the interface IPerson. I wanna call form my class a method implemented in the interface, and I get this error: CS0103 The name 'SayMyName' does not exist in the current context How can I call a method implemented in an interface from a derived class?

public interface IPerson
{
    string SayMyName()
    {
        return "MyName";
    }
}

public class Person : IPerson
{
    public void Method()
    {
        SayMyName();//ERROR CS0103 The name 'SayMyName' does not exist in the current context
    }
}

Huh. What will they think of next? In my day we called those abstract classes.... :D — Danny
– Danny, Commented Apr 16, 2021 at 17:16
There are no derived classes in the sample code... Only an interface and a class implementing this interface, and the interface has a method with default implementation... So if duplicate is not enough check out other search results for correct terms bing.com/… and edit question using proper terms. — Alexei Levenkov
– Alexei Levenkov, Commented Apr 16, 2021 at 17:29

Serg · Accepted Answer · 2021-04-16 17:15:35Z

6

You need explicit cast to access default implementation, provided by the interface.

((IPerson)this).SayMyName();

answered Apr 16, 2021 at 17:15

Serg

4,8312 gold badges18 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

C# How can I call an interface method from my derived class [duplicate]

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related