Read a CSV file into a DataGridView

'12/4/2011
'Code to read CSV file with headers using 
'ACE.OLEDB.12.0 Connection

'The following is a Sampling of <EXTENSION.csv>
'The CSV file contains all the Extension on my Desktop Computer
'The full file has 923 Rows with Headers:

'EXTENSION,DESCRIPTION,EXECUTABLE_PATH
'.mde,Microsoft Office Access MDE Database,C:\Program Files\Microsoft Office\Office12\MSACCESS.EXE
'.mdf,None,NO DEFAULT PROGRAM SET
'.mdmp,Crash Dump File,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe
'.mdn,Microsoft Office Access Blank Database Template,C:\Program Files\Microsoft Office\Office12\MSACCESS.EXE
'.mdp,VC++ 5 Workspace,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe
'.mds,None,NO DEFAULT PROGRAM SET
'.mdt,Microsoft Office Access Add-in Data,C:\Program Files\Microsoft Office\Office12\MSACCESS.EXE
'.mdw,Microsoft Office Access Workgroup Information,C:\Program Files\Microsoft Office\Office12\MSACCESS.EXE
'.mdx,None,C:\Program Files\DAEMON Tools Lite\DTLite.exe
'.mdz,Protracker Compressed Module,NO DEFAULT PROGRAM SET
'.meo,None,NO DEFAULT PROGRAM SET
'.mfp,Macromedia Flash Paper,C:\Program Files\Internet Explorer\IEXPLORE.EXE
'.mgc,Media Catalog File,NO DEFAULT PROGRAM SET
'.mht,MHTML Document,C:\Program Files\Internet Explorer\IEXPLORE.EXE
'.mhtml,MHTML Document,C:\Program Files\Internet Explorer\IEXPLORE.EXE
'.mid,MIDI File Format,NO DEFAULT PROGRAM SET
'.midi,MIDI File Format,NO DEFAULT PROGRAM SET
'.MIZ,Compressed MIDI File,NO DEFAULT PROGRAM SET
'.mjd,Job Definition Format,C:\Program Files\Adobe\Acrobat 10.0\Acrobat\Acrobat.exe
'.mk,Makefile,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe
'.mka,Matroska Audio file,C:\Program Files\Combined Community Codec Pack\MPC\mpc-hc.exe
'.mkv,Matroska Media file,C:\Program Files\Combined Community Codec Pack\MPC\mpc-hc.exe
'.mmf,None,NO DEFAULT PROGRAM SET
'.mml,Media Catalog File,NO DEFAULT PROGRAM SET
'.mmm,Media Clip,mplay32.exe /play /close
'.mmw,Media Catalog File,NO DEFAULT PROGRAM SET
'.mobi,None,C:\Program Files\FBReader\FBReader.exe
'.mod,None,NO DEFAULT PROGRAM SET
'.moh,None,NO DEFAULT PROGRAM SET
'.MOV,Video,C:\Program Files\JetAudio\jetaudio.exe
'.movie,None,NO DEFAULT PROGRAM SET
'.MP1,MPEG Layer 1 Audio File,NO DEFAULT PROGRAM SET
'.mp2,MPEG Layer 2 Audio,C:\Program Files\iTunes\iTunes.exe
'.mp2v,MPEG Media file,C:\Program Files\Combined Community Codec Pack\MPC\mpc-hc.exe
'.MP3,Music,C:\Program Files\JetAudio\jetaudio.exe
'.MP4,Video,C:\Program Files\JetAudio\jetaudio.exe
'.xlsm,Microsoft Office Excel Macro-Enabled Worksheet,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xlsmhtml,None,NO DEFAULT PROGRAM SET
'.xlsx,Microsoft Office Excel Worksheet,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xlt,Microsoft Office Excel Template,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xlthtml,Microsoft Office Excel HTML Template,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xltm,Microsoft Office Excel Macro-Enabled Template,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xltx,Microsoft Office Excel Template,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xlw,Microsoft Office Excel Workspace,C:\Program Files\Microsoft Office\Office12\EXCEL.EXE
'.xlxml,Microsoft Office Excel XML Worksheet,NO DEFAULT PROGRAM SET
'.xm,Fasttracker 2 Module,NO DEFAULT PROGRAM SET
'.xml,XML Document,C:\Program Files\Internet Explorer\IEXPLORE.EXE
'.xmta,XMTA Document,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe
'.xmz,Fasttracker 2 Compressed Module,NO DEFAULT PROGRAM SET
'.XOML,Windows Workflow File,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe
'.xpp,SQL Server Replication Snapshot Extended Properties Script,NO DEFAULT PROGRAM SET
'.xps,XPS document,NO DEFAULT PROGRAM SET
'.xsc,Visual Studio Dataset Internal Info File,NO DEFAULT PROGRAM SET
'.xsd,XML Schema File,C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe


'Controls:
' Form - Form1
'DataGridView - dgv1
'Button - btnGo

Imports System.IO
Imports System.Data
imports System.Data.OleDb

Public Class Form1
  Dim ds As New DataSet

  'csv file resides in the debug Folder of the project
  Dim csvFile As String = Environment.CurrentDirectory & "\EXTENSION.csv"

  Private Sub btnGo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
                          Handles btnGo.Click


    'For text file connection 
    'The Directory that the file resides can be thought of as the database
    'The File Name xxx.csv,xx.txt can be thought of as the table name
    Dim csvFileName As String = Path.GetFileName(csvFile)
    Dim csvPath As String = Path.GetDirectoryName(csvFile)


    'Connection String Office 2007/2010
    'For some reason extra Double Quotes Chr(34) are 
    'needed around the Properties in the Connection String 
    Dim conStr As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & _
                           csvPath & ";Extended Properties=" & _
                           Chr(34) & "text;HDR=yes;FMT=Delimited;" & Chr(34)


    'Then use sql query to get the result set you want
    Dim sql As String = "Select * From " & csvFileName & ";"

    'OLEDB Connection
    Dim con As New OleDbConnection(conStr)

    'Create a new command and set its properties
    Dim cmd As New OleDbCommand
    With cmd
      .CommandType = CommandType.Text
      .CommandText = sql
      .Connection = con
    End With

    'Create a DataAdapter, set its properties, and Fill
    Dim da As New OleDbDataAdapter
    da.SelectCommand = cmd
    da.Fill(ds)

    'Set the DataGridView's DataSource
    dgv1.DataSource = ds.Tables(0)

  End Sub


End Class

There is no question, I was attempting to add this to the Snippets section when my browser locked up and when I got the site back up it was in this folder/directory. I guess I should delete it and try again. I really don't know if I can delete it but here it sits. My apologies to all.


Ken

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