how-to-explicitly-implement-interface-members.md

title	How to: Explicitly Implement Interface Members (C# Programming Guide)
ms.date	07/20/2015
ms.prod	.net
ms.technology	devlang-csharp
ms.topic	article
helpviewer_keywords	interfaces [C#], explicitly implementing
ms.assetid	514cde76-f981-474e-8b40-9493619f899c
caps.latest.revision	16
author	BillWagner
ms.author	wiwagn

How to: Explicitly Implement Interface Members (C# Programming Guide)

This example declares an interface, IDimensions, and a class, Box, which explicitly implements the interface members getLength and getWidth. The members are accessed through the interface instance dimensions.

Example

[!code-csharpcsProgGuideInheritance#8]

Robust Programming

• Notice that the following lines, in the Main method, are commented out because they would produce compilation errors. An interface member that is explicitly implemented cannot be accessed from a class instance:

  [!code-csharpcsProgGuideInheritance#45]

• Notice also that the following lines, in the Main method, successfully print out the dimensions of the box because the methods are being called from an instance of the interface:

  [!code-csharpcsProgGuideInheritance#46]

See Also

C# Programming Guide
Classes and Structs
Interfaces
How to: Explicitly Implement Members of Two Interfaces