CODEWITHSUNDEEP
c#asp.net-mvc
thd
thd

Reputation: 2083

IActionFilter - why don't to have to implement all methods?

I am creating a custom action filter in a MVC web project. My custom action filter is as follows:

public class RequestLogFilterActionAttribute : ActionFilterAttribute, IActionFilter
{
    void IActionFilter.OnActionExecuting(ActionExecutingContext filterContext)
    {
        //Code...
    }
}

How come I don't have to implement the OnActionExecuted method?

void IActionFilter.OnActionExecuted(ActionExecutedContext filterContext)
{
}

Normally, you have to implement all methods in an interface. I don't get any build errors when building my project.

Upvotes: 1

Views: 722

Answers (1)

Michael Liu
Michael Liu

Reputation: 55339

How come I don't have to implement the OnActionExecuted method?

Because the base class, ActionFilterAttribute, has a matching OnActionExecuted method.

When you implement an interface, inherited members can be used to satisfy the interface.

Upvotes: 2

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