ASP.NET CSV (comma-separated values) Output for Use by Excel/Spreadsheet

This code will connect to the MS SQL Server pubs database, open the titles table, and output the results as a CSV file using Response.Write() and the browser will save the file as titles.csv.

<%@ Page Language="VB" ContentType="text/csv" %>
<%@ Import Namespace="System" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>
<%@ Import Namespace="System.Configuration" %>
<%
	Response.Clear()
	'tell the browser to save the file as titles.csv
	Response.AppendHeader("content-disposition", "attachment;filename=titles.csv")
	Dim oCon As New OleDbConnection(System.Configuration.ConfigurationManager.ConnectionStrings("ConnectPubs").ToString())
	oCon.Open()
	'FROM THE pubs DATABASE IN MS SQL SERVER
	Dim oCmd As New OleDbCommand("SELECT authors.au_lname, authors.au_fname, titles.title, titles.price," & _
	" titles.ytd_sales FROM titleauthor INNER JOIN titles ON titleauthor.title_id = titles.title_id INNER" & _
	" JOIN authors ON titleauthor.au_id = authors.au_id", oCon)
	Dim oRdr As OleDbDataReader = oCmd.ExecuteReader()
	Response.Write("LastName,FirstName,Title,Price,YTDSales" & ControlChars.CrLf)
	Do While oRdr.Read()
		Dim i As Integer = 0
		While i < oRdr.FieldCount
			Response.Write(IIf(i = 0, "", ",") & """" & IIf(IsDBNull(oRdr(i)), "", _
			oRdr(i).ToString().Replace("""", """""")) & """")
			i += 1
		End While
		Response.Write(ControlChars.CrLf)
	Loop
	oRdr.Close()
	oCon.Close()
	Response.End()
%>