Update cell data in an Excel file using OLEDB in VB.net

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In this article we can see how to update an cell in a Excel file using OleDB connection and DataAdapter and using UPDATE command 

sample UPDATE sql
sql = "Update [Sheet1$] set name = 'New Name' where id=1" 

The follwoing picture shows before and after update of the Sheet.


Imports System.Data

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, _
                ByVal e As System.EventArgs) Handles Button1.Click

            Dim MyConnection As System.Data.OleDb.OleDbConnection
            Dim myCommand As New System.Data.OleDb.OleDbCommand
            Dim sql As String

            MyConnection = New System.Data.OleDb.OleDbConnection _
            ("provider=Microsoft.Jet.OLEDB.4.0; Data Source=" + _
            "'c:\testfile.xls';Extended Properties=Excel 8.0;")

            myCommand.Connection = MyConnection
            sql = "Update [Sheet1$] set name = 'New Name' where id=1"
            myCommand.CommandText = sql

        Catch ex As Exception
        End Try

        MsgBox("Updated ")

    End Sub

End Class

When you execute this source code the will update the specified content.

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1. View Comment

how to append data to existing excel sheets without loosing any data using jxl??

View Tutorial          By: nim at 2011-03-23 00:28:10
2. View Comment

string strInsert = "Insert into [Sheet1$](F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,F13,F14,F15,F16,F17,F18,F19,F20,F21,F22,F23,F24,F25,F26,F27,F28,F29,F30) VALUES(@F1,@F2,@F3,@F4,@F5,@F6,@F7,@F8,@F9,@F10,@F11,@F12,@F13,@F14,@F15,@F16,@F17,@F18,@F19,@F20,@F21,@F22,@F23,@F24,@F25,@F26,@F27,@F28,@F29,@F30)";
da.InsertCommand=new OleDbCommand(strInsert,con);
da.Update(ds, "[Sheet1$]");

View Tutorial          By: Sagar at 2011-05-12 06:47:13

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