Do you know "Explicit interface member implementation ??

Today I saw Yu's post. My failure: the hidden interface members gave me a lot of inspiration. I used to see something like this (INT idbconnection. connectiontimeout {...}).CodeI do not know its exact meaning.

I have written some code to try whether this hidden method can be used to inherit ordinary inheritance or abstract classes, the compiler gave me the error message "" XXX "in the explicit interface declaration is not an interface ", this method is called explicit interface declaration (why I have never seen this topic before ).

Then I checked msdn and found the following content. The class that implements the interface can explicitly implement the members of this interface. When a member is explicitly implemented, the member cannot be accessed through a class instance, but can only be accessed through the instance of this interface.
If you are interested, you can view the content in msdn.

MS-help: // Ms. vscc.2003/ms. msdnqtr.2003feb. 2052/csref/html/vcwlkexplicitinterfaceimplementationtutorial.htm