convert csv data to DataTable in VB.net, capturing column names from row 0 - vb.net

Question

I've adapted the code from the #tim-schmelter answer to question convert csv data to DataTable in VB.net (see below)
I would like to parse in the column titles from row 0 of the csv file
DT|Meter Number|Customer Account Number|Serial Number|Port...
but I'm not having any luck trying to figure out how to do this. any suggestions would be very appreciated.
Public Function csvToDatatable_2(ByVal filename As String, ByVal separator As String)
'////////////////////////////////////////
'Reads a selected txt or csv file into a datatable
'based on code from http://stackoverflow.com/questions/11118678/convert-csv-data-to-datatable-in-vb-net
'////////////////////////////////////////
Dim dt As System.Data.DataTable
Try
dt = New System.Data.DataTable
Dim lines = IO.File.ReadAllLines(filename)
Dim colCount = lines.First.Split(separator).Length
For i As Int32 = 1 To colCount
dt.Columns.Add(New DataColumn("Column_" & i, GetType(String)))
Next
For Each line In lines
Dim objFields = From field In line.Split(separator)
Dim newRow = dt.Rows.Add()
newRow.ItemArray = objFields.ToArray()
Next
Catch ex As Exception
Main.Msg2User(ex.Message.ToString)
Return Nothing
End Try
Return dt
End Function

Answer 1

Just loop thru all the line of the file. Use a boolean to check for the first row.
Public Function csvToDatatable_2(ByVal filename As String, ByVal separator As String)
Dim dt As New System.Data.DataTable
Dim firstLine As Boolean = True
If IO.File.Exists(filename) Then
Using sr As New StreamReader(filename)
While Not sr.EndOfStream
If firstLine Then
firstLine = False
Dim cols = sr.ReadLine.Split(separator)
For Each col In cols
dt.Columns.Add(New DataColumn(col, GetType(String)))
Next
Else
Dim data() As String = sr.Readline.Split(separator)
dt.Rows.Add(data.ToArray)
End If
End While
End Using
End If
Return dt
End Function

Answer 2

Here is a hybrid of the two solutions above, with a few other changes:
Public Shared Function FileToTable(ByVal fileName As String, ByVal separator As String, isFirstRowHeader As Boolean) As DataTable
Dim result As DataTable = Nothing
Try
If Not System.IO.File.Exists(fileName) Then Throw New ArgumentException("fileName", String.Format("The file does not exist : {0}", fileName))
Dim dt As New System.Data.DataTable
Dim isFirstLine As Boolean = True
Using sr As New System.IO.StreamReader(fileName)
While Not sr.EndOfStream
Dim data() As String = sr.ReadLine.Split(separator, StringSplitOptions.None)
If isFirstLine Then
If isFirstRowHeader Then
For Each columnName As String In data
dt.Columns.Add(New DataColumn(columnName, GetType(String)))
Next
isFirstLine = True ' Signal that this row is NOT to be considered as data.
Else
For i As Integer = 1 To data.Length
dt.Columns.Add(New DataColumn(String.Format("Column_{0}", i), GetType(String)))
Next
isFirstLine = False ' Signal that this row IS to be considered as data.
End If
End If
If Not isFirstLine Then
dt.Rows.Add(data.ToArray)
End If
isFirstLine = False ' All subsequent lines shall be considered as data.
End While
End Using
Catch ex As Exception
Throw New Exception(String.Format("{0}.CSVToDatatable Error", GetType(Table).FullName), ex)
End Try
Return result
End Function