I am in the midst of converting a VB library to C#. One of my methods has the following signature in VB:

Private Shared Sub FillOrder(ByVal row As DataRowView, ByRef o As Order)

In C# I converted it to:

private static void FillOrder(DataRowView row, ref Order o)

From my constructor inside my Order class, I am calling the FillOrder() method like so:

DataView dv = //[get the data]
if (dv.Count > 0)
{
    FillOrder(dv[0], this);
}

In VB, this works:

Dim dv As DataView = '[get data]'
If dv.Count > 0 Then
    FillOrder(dv.Item(0), Me)
End If

However, in VS10 in the C# file I am getting a red squiggle under this call with the following error:

The best overloaded method match for [the method] has some invalid arguments

This was working code in VB. What am I doing wrong?