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 07:57:31

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. well explained.. Thanq :)
View Tutorial          By: Aparna at 2013-03-01 06:08:35

2. Its a nice article obviously. Can you put somethin
View Tutorial          By: kowser at 2009-10-06 23:44:52

3. Hi, I need the complete working code for recieving
View Tutorial          By: Issam at 2008-09-26 01:24:04

4. As a beggnar, i find it varry varry usefuull.... P
View Tutorial          By: Rameeza at 2011-05-17 03:14:50

5. This will give the output check it out


View Tutorial          By: shruthi at 2013-01-18 06:00:08

6. Another solution to those, who feel that the probl
View Tutorial          By: Zolt├ín P. Ackermann at 2010-12-09 01:58:51

7. Very precisely and simply explained.
View Tutorial          By: Deepak at 2015-01-05 08:37:01

8. In the block form of SMTP.start, is there a way to
View Tutorial          By: Roshan at 2012-02-02 11:48:53

9. could you plz tell me how to run this all programs
View Tutorial          By: abhishek at 2010-10-27 00:08:57

10. Hi, i am trying this code but at compile time it w
View Tutorial          By: swapnil at 2012-12-16 01:37:57