Public Function New( _
   ByVal source As Object, _
   ByVal row As Integer, _
   ByVal column As Integer, _
   ByVal rowCount As Integer, _
   ByVal columnCount As Integer _
)

Dim source As Object
Dim row As Integer
Dim column As Integer
Dim rowCount As Integer
Dim columnCount As Integer
 
Dim instance As New ExternalRangeExpression(source, row, column, rowCount, columnCount)

public ExternalRangeExpression( 
   object source,
   int row,
   int column,
   int rowCount,
   int columnCount
)