C# - Excel 2007 Converting Exported Memorystream Data To Formula?
Dec 21, 2010
I have an small ASP.NET application that reads data from a table and sends it out as an excel attachment in an email message. The data is simply HTML table tr td tagged data. The way I am sending the message is by the following code:
byte[] data = GetData(excelData);
MemoryStream memoryStream = new MemoryStream(data);
mm.Attachments.Add(new Attachment(memoryStream, "info.xls", "text/plain"));
This has been working fine in Excel 2003 but for some reason Excel 2007 keeps trying to convert the whole thing to a formula and I get a "Cell Data too Long" error. I've tried searching but couldn't really find anything specific about why this might be happening in 07 or a simple way to fix it. I know 07 probably handles data a little bit different than 03 but I don't have a lot of time to dedicate to reworking this app if possible.
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Mar 23, 2010
I am using the below code to Export DataTable to Word,Excel,CSV format & it's working fine. But problem is that this code export to MS Word 2003,Excel 2003 & CSV version. I need to Export my DataTable to MS Word 2007,Excel 2007 & CSV because I am supposed to handle more than 100,000 records at a time and as we know Excel 2003 supports for only 65,000 records.
how to export DataTable or DataSet to MS Word 2007,Excel 2007 & CSV.
[Code]....
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Mar 25, 2010
I'm working on a web app and need to stream various files. I can do pdfs, images, and older Office documents. However, when I try to do with 2007 documents, it breaks. Here is my code:
Response.Buffer = true;
Response.Clear();
Response.ClearContent();
Response.ClearHeaders();
switch (FileExtension.ToLower())
{
case "pdf":
Response.ContentType = "application/pdf";
break;
case "doc":
Response.ContentType = "application/msword";
break;
case "docx":
Response.ContentType = "application/vnd.ms-word.document.12";
break;
case "xls":
Response.ContentType = "application/vnd.ms-excel";
break;
case "xlsx":
Response.ContentType = "application/vnd.ms-excel.12";
break;
default:
Response.ContentType = "image/jpeg";
break;
}
Response.BinaryWrite(buffer);
The error that I get is:
An invalid character was found in text content. Error processing resource 'http://DomainName/GetFile.aspx.
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Mar 23, 2010
I am using the below code to Export DataTable to MS Word,Excel,CSV format & it's working fine. But problem is that this code export to MS Word 2003,Excel 2003 version. I need to Export my DataTable to Word 2007,Excel 2007,CSV because I am supposed to handle more than 100,000 records at a time and as we know Excel 2003 supports for only 65,000 records.
how to export DataTable or DataSet to MS Word 2007,Excel 2007.
[Code]....
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Sep 12, 2012
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I tried following code but it is not exporting the file.
[System.Web.Services.WebMethod]
public static void CSV2Excel(string csv){
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Nov 25, 2013
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<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<cc2:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server" > </cc2:ToolkitScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
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[code].....
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Aug 3, 2010
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Nov 25, 2012
I am exporting only two columns to the excel
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Say Amount Out Of 10 Percent
1000 100
100 10.
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Aug 18, 2010
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[Code].....
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Nov 4, 2011
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Code:
The GridView ASPX
<asp:GridView ID="GridViewList" runat="server"
BackColor="White" BorderColor="#E7E7FF" BorderStyle="Solid"
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[code]....
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Dec 27, 2010
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Following is the complete source code. Kindly any senior member guide me what is the problem in the following code.
[Code]....
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Mar 21, 2011
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[Code]....
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[Code]....
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Jan 17, 2011
I am trying to export grid view data into excel 2007 i.e. xlsx format. but its giving error.
i am using following code
protected void Button1_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
[Code]....
but not working properly and on opening the file it gives following error "Excel cannot open the file 'ChangeRequestList[2].xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file"
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Feb 3, 2011
I need to open a GridView as either an Excel or a PDF file. The excell prodecure is working fine, but I'm getting a: File does not begin with '%PDF-' error when trying to use the PDF file. The code is as follows:
Protected Sub EMButton_Click(ByVal sender
As Object,
ByVal e As System.Web.UI.ImageClickEventArgs)
Handles EMButton.Click
'Save the table to an excel File
Dim StringWriter
As New System.IO.StringWriter()
Dim html As
New System.Web.UI.HtmlTextWriter(StringWriter)
Dim form As HtmlForm =
New HtmlForm()
Page.Response.ContentType = "application/vnd.ms-excel"
Page.Response.Charset = ""
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
Page.Response.AddHeader("content-disposition",
"attachment;filename=FullDateReport.xls")
Page.EnableViewState = False
form.Attributes("runat") =
"server"
Controls.Add(form)
form.Controls.Add(GridView1)
form.RenderControl(html)
Response.Write(StringWriter.ToString())
Response.End()
End Sub
[this doesn't work]
Protected Sub PDButton_Click(ByVal sender
As Object,
ByVal e As System.Web.UI.ImageClickEventArgs)
Handles PDButton.Click
'Save the table to PDF Format
Dim StringWriter
As New System.IO.StringWriter()
Dim html As
New System.Web.UI.HtmlTextWriter(StringWriter)
Dim form As HtmlForm =
New HtmlForm()
Page.Response.ContentType = "application/PDF"
Page.Response.Charset = ""
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
Page.Response.AddHeader("content-disposition",
"attachment;filename=FullDateReport.pdf")
Page.EnableViewState = False
form.Attributes("runat") =
"server"
Controls.Add(form)
form.Controls.Add(GridView1)
form.RenderControl(html)
Response.Write(StringWriter.ToString())
Response.End()
End Sub
I've tried using:
Page.Response.Clear()
Page.Response.ContentEncoding = Encoding.Unicode
Page.Response.BinaryWrite(Encoding.Unicode.GetPreamble())
Page.Response.AddHeader("Content-Length", html.ToString().Length.ToString())
With the PDF procedure, but still couldn't get it to work. I've also tried using inline instead of attachment in the header.
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Jan 15, 2010
i'm having problems with the export to excel from gridview codeit seems like the excel is automatically convert my strings with only numbers to numericthis gives me problem with leading zero string likes for example "007" and the excel will display 7anyone faced with problem before?
[Code]....
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Sep 13, 2010
On Previous version of my application, if I want to export my data from SQL Server to Excel 2003 file, I just retrieve data from the SQL server and then straight away show "Open, Save, Cancel" dialog box to get the data on Excel 2003 Format. Here is the existing code in C#.
public void ExportToExcel(string StrFileName, DataTable dt)
{
if (dt!= null && dt.Rows.Count > 0)[code]....
but when I want to Export to Excel 2007 format with the same. I don't have any Idea to export it.
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Feb 11, 2011
I'm really stuck tryign to figure this out. Converting XLS to CSV is no big deal or at least it seems that way. However, trying to go xlsx to csv seems to be more difficult. For grins, I grabbed some code that is supposed to read a sample xlsx file and convert that into a gridview called GridView1. I figure it can't be much different to turn that into CSV.
[Code]....
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Apr 11, 2012
I need to export asp.net page toexcel 2007. when i wrote the code as below:
protected void Button2_Click(object sender, EventArgs e) {Response.Clear();
Response.AddHeader("content-disposition", "attachment;filename=FileName.xls");
Response.Charset = ""; Response.ContentType = "application/vnd.xls"; System.IO.StringWriter string
Write = new System.IO.StringWriter(); System.Web.UI.HtmlTextWriter html
Write = new HtmlTextWriter(stringWrite); div1.RenderControl(htmlWrite);
Response.Write(stringWrite.ToString()); Response.End(); }
publicoverride void VerifyRenderingInServerForm(Control control) {
} and
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="poprint.aspx.cs" Inherits="print_poprint" EnableEventValidation="false" %>
It displays message as shown
The file you are trying to open is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?
When yes is clicked it opens in excel but in some other format I think for I cannot AUTOSUM or sum the values result always as zero for numbers appears as text as " 222" . even if i try to format cells with numbers it does not works.
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