Question

I am trying to create a generic user control.
So I need a user control with a generic parameter.

<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IPager<T>>" %>

The control doesn’t really care what the T is. It works with any T.

When I render the control, I can instantiate it with the generic argument.

<%= Html.RenderPartial<MyClass>("Pager", Model); %>

That’s the basic idea – is there any way to make a user control that takes an extra generic argument. If I wanted to build such a thing, where would I start?

Any thoughts?

Answer 1

If you are using .NET 4.0, you can use IPager<object> in the <%@Control %> declaration. Then, the covariant generics support means that you can pass it an IPager<MyClass> as a model in RenderPartial and it will still work just fine.