Read Data from Excel using OLEDB in VB.NET 2005

Without using Excel Object we can insert , edit , delete , select etc. in cell content of an Excel 2007 file using OLEDB in VB.NET 2005 . Here we are using OleDbConnection , OleDbDataAdapter , DataSet for doing these operations in an Excel file. You have to import System.Data in the project for doing these operations . For read the content from Excel file using ado.net , We can use the SELECT command like in SQL Operations.

sample Select sql

sql = "select * from [Sheet1$]"

Here is the sample Excel file .

Open the connection using OLEDB Provider

(provider=Microsoft.Jet.OLEDB.4.0;Data Source='Your Filename';Extended Properties=Excel 8.0;)

Specify which data you want to read

select * from [Sheet1$]

Here is the screen short after reading from Excel file .

VB.NET Source Code

Imports System.Data
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, _
     ByVal e As System.EventArgs) Handles Button1.Click
Try
 Dim MyConnection As System.Data.OleDb.OleDbConnection
 Dim DtSet As System.Data.DataSet
 Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
 MyConnection = New System.Data.OleDb.OleDbConnection _
 ("provider=Microsoft.Jet.OLEDB.4.0;"  _
 " Data Source='c:\testfile.xls'; " _
  "Extended Properties=Excel 8.0;")
 MyCommand = New System.Data.OleDb.OleDbDataAdapter _
     ("select * from [Sheet1$]", MyConnection)
 MyCommand.TableMappings.Add("Table", "TestTable")
 DtSet = New System.Data.DataSet
 MyCommand.Fill(DtSet)
 DataGridView1.DataSource = DtSet.Tables(0)
 MyConnection.Close()
Catch ex As Exception
 MsgBox(ex.ToString)
End Try
End Sub
End Class

When you execute this program you will get the contents in the excel file to the DataGrid.