How to access Default Public Property Item in a VB.NET dll from C# code

I have a function in VB.NET that is a Default Public Property Item (...).  So in VB.NET I would access it Something.Item(1) = somevalue, where 1 is the index of the array.  In C# you would access this property via the bracket [].  For example, the above example in C# would be Something[1] = somevalue