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Regarding explicit interface implementation

Regarding explicit interface implementation

Prakash Tripathi

11yAsked Apr 22, 2015, 3:17 AM1kVisual Basic .NET

Hello Folks,

I was exploring the explicit interface implementation and got a question.

In the example below public void ITest.TestMethod() gives error however void ITest.TestMethod() works.

May I know the reason?

interface ITest

{

void TestMethod();

}

class TestClass: ITest

{

//public void ITest.TestMethod() //Error The modifier 'public' is not valid for this item

void ITest.TestMethod() //Works

{

Console.WriteLine("Explicit Interface Implementation");

}

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Guest User11y ago
Because the method is only accessible by interface it has to be public.
Prakash Tripathi11y ago
Thanks for the reply, however, I am still not able to digest that why I can't have the access modifier in the implementation of explicit method?
Guest User11y ago
https://msdn.microsoft.com/en-us/library/44a9ty12.aspx

Quote: "An interface member that is explicitly implemented cannot be accessed from a class instance:"

Because you use explicit implementation, you cannot give it an access specifier, the method can only be called by using the interface, not the class instance.