Comment on Tutorial - How to export from database to excel using VB.net By Issac



Comment Added by : John McCode

Comment Added at : 2013-05-24 07:56:04

Comment on Tutorial : How to export from database to excel using VB.net By Issac
you do the same as after.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cnn As SqlConnection
Dim sql As String
Dim i, j As Integer

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.Application
xlWorkBook = xlApp.Workbooks.Add(misValue)
xlWorkSheet = xlWorkBook.Sheets("sheet1")
cnn = Connection.getConnection()
cnn.Open()
sql = "SELECT * FROM tblNVcanhan"
Dim dscmd As New SqlDataAdapter(sql, cnn)
Dim ds As New DataSet
dscmd.Fill(ds)
For i = 0 To ds.Tables(0).Columns.Count - 1
xlWorkSheet.Cells(1, i + 1) = ds.Tables(0).Columns(i).ToString()
Next
For j = 0 To ds.Tables(0).Rows.Count - 1
xlWorkSheet.Cells(j + 2, 1) = ds.Tables(0).Columns(j).ToString()
For i = 0 To ds.Tables(0).Columns.Count - 1
xlWorkSheet.Cells(j + 2, i + 1) = ds.Tables(0).Rows(j).Item(i).ToString()
Next
Next
xlApp.Columns.AutoFit()
'xlWorkSheet.SaveAs("D:\vbexcel.xlsx")
'xlWorkBook.Close()
MsgBox("You can find the file D:\vbexcel.xlsx")
xlApp.Visible = True

releaseObject(xlApp)
releaseObject(xlWorkBook)
releaseObject(xlWorkSheet)

cnn.Close()

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


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Archived Comments

1. Unable to understand all the points, quiet confusi
View Tutorial          By: KB at 2015-04-15 10:11:14

2. Very informative article, this is the exact articl
View Tutorial          By: Abhinav bindra at 2012-03-23 14:00:12

3. Hi every body.. I accomplished the task of sending
View Tutorial          By: Ashray P Shetty at 2010-11-18 06:25:54

4. good job
View Tutorial          By: gopi at 2008-07-01 02:02:48

5. Clear explaination..Thank You Sir...
View Tutorial          By: nishanth at 2014-06-16 08:58:04

6. Very nice introduction to j2me well you should als
View Tutorial          By: Bikashjit at 2012-08-29 08:53:28

7. hi i am new in java please send me basic programs
View Tutorial          By: Ganesh kumar at 2013-02-26 03:31:54

8. Showing code with quote tags is pretty rubbish. :/
View Tutorial          By: Daniel Jonsson at 2011-09-01 14:01:04

9. It works like a charm. Thanks a lot.
View Tutorial          By: Balram at 2008-08-22 21:18:44

10. i don,t think so that it is sufficient to understa
View Tutorial          By: amit singh at 2009-05-27 06:54:20