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. Hi santhosh,
Try it ou

View Tutorial          By: Kiran at 2011-12-14 04:31:29

2. thanks for this pertinent remark.
View Tutorial          By: mohammed at 2009-02-21 05:43:11

3. Thanks very much, this helped alot.
View Tutorial          By: Steve at 2012-10-09 21:09:16

4. Good one ! and simple tutorial
View Tutorial          By: Sim at 2011-02-24 01:57:53

5. Good information...it help me to do mi projecto! t
View Tutorial          By: gnk at 2010-08-12 01:01:50

6. Hi i have created the 5 files and in main program
View Tutorial          By: Anandkumar at 2011-09-10 05:13:59

7. good
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8. how to multiply 2.54*0.7071 using only bitwise ope
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10. I have copied c:\php\bin\msvcr80.dll to C:\Program
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