Great! Now my csv file was found! However I got another error.

Server Error in '/' Application.

---

Object reference not set to an instance of an object.

Line 16:     command.Parameters.AddWithValue("@email", inputUser)
Line 17:     con.Open()
Line 18:     password = command.ExecuteScalar().ToString()
Line 19:     con.Close()
Line 20:     Label1.Text = password

I think this error means that no value was put into the variable "password". I replaced "pass" with made-up words and resulted in the same error. Does that mean it is not reading the column name "pass" on the fist line of csv file?
 

Here.s my vb code 

Imports System.Data.OleDb

Partial Class register
    Inherits System.Web.UI.Page

  Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim inputUser As String = "info@msn.com"
    Dim password As String
    Dim path As String = Server.MapPath(Request.ApplicationPath) & "test\data\"
    Dim con As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & path & "; Extended Properties='text; HDR=Yes; FMT=Delimited'")
    Dim command As OleDbCommand = con.CreateCommand()
    command.CommandText = "SELECT tel FROM wholesale.csv WHERE email = @email"
    command.Parameters.AddWithValue("@email", inputUser)
    con.Open()
    password = command.ExecuteScalar().ToString()
    con.Close()
    Label1.Text = password
  End Sub
End Class

My csv file contains.....
line1: name,company,address,tel,email,pass,hear
line2: zuke oshiro,apparel news,4705 Willo Brook Ave.,3234015117,zuke@zuke.us,mypassword,web