How to differentiate between T and IList<T>

Question

I have two methods:

public static int Insert<T>(this System.Data.IDbConnection connection, T param)
public static int Insert<T>(this System.Data.IDbConnection connection, IList<T> param)

When I try something like this:

connection.Insert(new List<Foo>());

the wrong method (first method) is called.

How can I make it work?

Answer 1

If there are generic overloads that can be implicitly called the same way, you have to use an explicit call.

This code will call the second overload.

connection.Insert<Foo>(new List<Foo>());