Code To Hide Rows When One Cell Is Empty And Other Is Not

I am trying to run a macro that will hide rows when one cell is empty and another is not. Example: hide row when cell g is empty, but cell b is not. Or something to that effect. So far I've only used this code, but I would like to know how I can modify the code to fit the parameters I need:

Sub HideRows()
On Error Resume Next
With Range("B1:B300")
.EntireRow.Hidden = False
For i = 1 To .Rows.Count
If WorksheetFunction. Sum(.Rows(i)) = 0 Then
.Rows(i).EntireRow.Hidden = True
End If
Next i
End With
End Sub