I'm hoping someone has some suggestions.  I'm programming something
which interacts with Autodesk Inventor release 11 SP2.  I want to for
loop through a collection and get data fro each item.  Although the
collection specifies [int index] it does not seem to be compatible with
.Net's version of int.

for (inti = 0; i < var.DrawingViews.Count; i++)
{
       MessageBox.Show(var.DrawingViews[i].Name);
}

This always returns an invalid parameter exception.
However, this works:

for (inti = 0; i < var.DrawingViews.Count; i++)
{
       MessageBox.Show(var.DrawingViews[8].Name);
}

As you can see if you hard code the number it gets cast or converted,
COM side, to whatever data type Inventor wants.  I've tried everything.
Int16-64, short-long, and all the unsigned variants.  None of them
work.  I am aware that I can enumerate through the collection with
foreach and it does in fact work.  However, there will undoubtedly be a
point where I will want a dynamic index variable.

Any suggestions?  Any type of Win32 type I should marshal in and cast
this int as?

Thanks!