Retreive data from sql database,bind it in grid and display it in excel sheet

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Am trying with the following code to retrieve data from sql server, followed by binding it in datagrid and finally output is displaying in excel sheet.

No errors! But not getting output. Help me out.

VB

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim con = obj_connection_string.getSQLConnection()
If con.State = ConnectionState.Open Then
con.Close()
End If
con.Open()
Dim cmd As New SqlCommand()
cmd.CommandText = "select username,password,isactive from tbl_Login_Details "
cmd.Connection = con
da.SelectCommand = cmd
da.Fill(ds)
cmd.ExecuteNonQuery()
Grid.DataSource = ds
Grid.DataBind()
End Sub

Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
Response.Clear()
Response.AddHeader("content-disposition", "attachment;filename=FileName.xls")

Response.Charset = ""

Response.Cache.SetCacheability(HttpCacheability.NoCache)

Response.ContentType = "application/vnd.xls"

Dim stringWrite As New System.IO.StringWriter()

Dim htmlWrite As System.Web.UI.HtmlTextWriter = New HtmlTextWriter(stringWrite)

Grid.RenderControl(htmlWrite)

Response.Write(stringWrite.ToString())

Response.Close()
End Sub

Posted 15-Mar-11 1:48am

Muthulak

Updated 15-Mar-11 2:15am

Henry Minute

v2

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Comments

Albin Abel 15-Mar-11 8:25am

In the button submit event you have to create a new gridview , set datasource and databind. Use the same datasource variable used for the 'Grid' variable. So that the updated values will be there. Let me know if that works, otherwise let us inform the Author who given this solution

Muthulak 15-Mar-11 8:38am

hi the excel sheet is getting opened.But am not getting the fields from table.submit button alone displaying inside the excel sheet

Albin Abel 15-Mar-11 9:10am

You may notify Soni Uma here http://www.codeproject.com/Questions/166124/Export-Gridview-to-Excel-in-ASP-NET.aspx. She/ He may able to help you. From there I got this code snippet. Post a your query as a comment to her answer

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_Ashish · Answer 1 · 2011-03-15T06:52:00

try this on button click

VB

Response.Clear()
        Response.AddHeader("content-disposition", "attachment;filename=FileName.xls")

        Response.Charset = ""

        Response.Cache.SetCacheability(HttpCacheability.NoCache)

        Response.ContentType = "application/vnd.xls"

        Dim stringWrite As New System.IO.StringWriter()

        Dim htmlWrite As System.Web.UI.HtmlTextWriter = New HtmlTextWriter(stringWrite)
        Dim dg As System.Web.UI.WebControls.GridView = New System.Web.UI.WebControls.GridView()

        dg.DataSource = grid.DataSource
        dg.DataBind()

        dg.RenderControl(htmlWrite)

        Response.Write(stringWrite.ToString())

        Response.End()