Referencing a Range object set by Range.Row() generates Error 1004 "Application-defined or object-defined error" - excel

Question

I've created a range object by setting it from another range object's Rows(). When I reference the newly created range by row and column, it generates error 1004.
I can reference the original range by row and column. I've included checks to make sure the rng object points to the same range as the dataset object. When I inspect the rng object, the Value2 shows a single row of data.
Below is the minimum code I'm using that generates the error.
Private Sub TestRangeObject()
Dim i As Long
Dim dataset As Range
Dim rng As Range
Set dataset = sRoster.Range("B18:E37")
For i = 1 To dataset.Rows.Count
Set rng = dataset.Rows(i)
Debug.Print "Rng is Range Obj: " & (TypeOf rng Is Range)
Debug.Print "Same worksheet: " & (rng.Parent.CodeName = dataset.Parent.CodeName)
Debug.Print "Same address: " & (dataset.Rows(i).Address = rng.Address)
'can reference dataset object by row and column
Debug.Print "First column (dataset): " & dataset(i, 1).Address
'error when referencing rng object by row and column
Debug.Print "First column (rng): " & rng(1, 1).Address
Next i
End Sub

Answer 1

As additional detail: there's a difference between using Rows(somerow) and Range(somerange).
This can be validated with a simple example:
Sub Test()
Dim rng As Range
Set rng = Sheet1.Range("1:1")
Debug.Print rng(1, 1).Address ' returns $A$1
Dim rng2 As Range
Set rng2 = Sheet1.Rows(1)
Debug.Print rng2(1).Address ' succeeds, returns $1:$1
Debug.Print rng2(1, 1).Address ' fails
End Sub
The solution - to use Rows(myRow).Cells - has already been proposed.
EDIT:
In an attempt to capture and summarize some of the back and forth from comments, a Row, whether it's Range.Rows(somerow) or Sheet.Rows(somerow), refers to a unit as a row, not as individual cells.
For example, Range("A1:E10").Rows would refer to 10 rows, not 50 cells.
In the same way, Sheet1.Rows(1) refers to 1 row, not 16384 cells. The row is the "smallest unit of consideration," for lack of a better term. One row can't have a column index - it's just one row, not a collection of all the cells that make up that row, which each have their own column index.
So you'll need to use Cells if you specifically want to index the cells in a certain row.

Answer 2

You can't use:
rng(1, 1)
if rng is a single row range:
Sub jksfhsa()
Dim sRoster As Worksheet, dataset As Range, rng As Range
Set sRoster = Sheets("Sheet1")
Set dataset = sRoster.Range("B18:E37")
Set rng = dataset.Rows(1)
MsgBox dataset.Address
MsgBox dataset(1, 1).Address
MsgBox rng.Address
MsgBox rng(1, 1).Address
End Sub
The last MsgBox will fail.
However:
Sub jksfhsa()
Dim sRoster As Worksheet, dataset As Range, rng As Range
Set sRoster = Sheets("Sheet1")
Set dataset = sRoster.Range("B18:E37")
Set rng = dataset.Rows(1).Cells
MsgBox dataset.Address
MsgBox dataset(1, 1).Address
MsgBox rng.Address
MsgBox rng(1, 1).Address
End Sub
will work just fine. So in your code replace:
Set rng = dataset.Rows(i)
with:
Set rng = dataset.Rows(i).Cells