By: Issac in VB.net Tutorials on 2009-01-31Excel file can be automated or worked upon by Auomation to Excel 2007,It can be done in two ways through Excel Object Model and using Microsoft Jet Engine to connect to Excel, through this we can achieve creating new wokbook add data to it or create charts in it, For creating an Excel 2007 worksheet in VB.NET 2005 , you have to add the Microsoft Excel 12.0 Object Library in you project.
From the following pictures to show how to add Excel reference library in your project.
1. Create a new project and add a button to the Form.
Select reference dialouge from Project menu
Select Microsoft Excel 12.0 Object Library and click OK button
Now you can start coding to create a new Excel file.
Imports Excel = Microsoft.Office.Interop.Excel Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object,_ ByVal e As System.EventArgs) Handles Button1.Click Dim xlApp As Excel.Application Dim xlWorkBook As Excel.Workbook Dim xlWorkSheet As Excel.Worksheet Dim misValue As Object = System.Reflection.Missing.Value xlApp = New Excel.ApplicationClass xlWorkBook = xlApp.Workbooks.Add(misValue) xlWorkSheet = xlWorkBook.Sheets("sheet1") xlWorkSheet.Cells(1, 1) = "http://vb.net-informations.com" xlWorkSheet.SaveAs("C:\vbexcel.xlsx") xlWorkBook.Close() xlApp.Quit() releaseObject(xlApp) releaseObject(xlWorkBook) releaseObject(xlWorkSheet) MsgBox("Excel file created , you can find the file c:\") End Sub Private Sub releaseObject(ByVal obj As Object) Try System.Runtime.InteropServices.Marshal.ReleaseComObject(obj) obj = Nothing Catch ex As Exception obj = Nothing Finally GC.Collect() End Try End Sub End Class
In the code, Imports Excel = Microsoft.Office.Interop.Excel - we assign the excel reference to a variable called Excel.
When you execute this program, the file created in the c:\ of your system.
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