Exporting Datagrid to Excel (unable to read file)

[Guest]

Hi,
Is there anything wrong with the code below in sending my browser page to
Excel? Before my page opens in Excel there's a message "Problems came up in
the following areas during load:" and it shows a CSS file in the "temporary
internet files" path. But when i click OK the page displays beautifully.
Even though my page has 3 datagrids, they all display with the same style as
seen in the browser page.

Though, the second problem is, when i try to export a datagrid which has
many rows, it will not export at all and a popup "unable to read file"
displays and Excel just shows gray blankness. Here is the code that i'm am
using:

Public Shared Sub ExportToExcel(ByVal argDG As DataGrid, ByVal argPage
As Page)

Dim resp As HttpResponse
resp = argPage.Response
resp.ContentType = "application/download"
resp.AppendHeader("Content-Disposition",
"attachment;filename=GLdata.xls")
Dim colHeaders As String

Dim tw As New System.IO.StringWriter
Dim hw As New System.Web.UI.HtmlTextWriter(tw)

argDG.RenderControl(hw)

End Sub

 

[David Wier]

As far as the row count - I believe there is a limit of around 65,000 rows
for Excel - - how many rows need to be exported?

 

[David Wier]

check out this code sample at ASPNet101.com:
http://www.aspnet101.com/aspnet101/aspnet/codesample.aspx?code=ExportDGExcel

 

[Guest]

Thank you! that helped - i wasnt setting EnableViewState to False, so that
solved my "unable to read file" problem.

But, i'm still getting the problem of a prompt window saying that it cant
find the CSS file... is there a way to not have it prompt? i dont care if it
cant find the CSS, i just dont want the user to have to click ok.