When I enter this foreach statement...

foreach (var row in table.Rows)

...the tooltip for var says class System.Object

I'm confused why it's not class System.Data.DataRow.

(In case you're wondering, yes, I have using System.Data at the top of my code file.)

If I declare the type explicitly, as in...

foreach (DataRow row in table.Rows)

...it works fine with no errors.

Also if I do...

var numbers = new int[] { 1, 2, 3 };
foreach (var number in numbers)

...var evaluates to struct System.Int32. So, the problem is not that var doesn't work in a foreach clause.

So, there's something strange about DataRowCollection where the items don't automatically evaluate to DataRow. But I can't figure out what it is. Does anyone have an explanation?