Web Forms :: How To Generate And Send Excel Spreadsheet From Vb.net Web Service

Sep 9, 2010

I am trying to generate an excel spreadsheet in my vb.net web service but it looks like its not allowing me. I need to generate it from xml string and send this spreadsheet in an email from the same web service.

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I have some code that generates a zip file that contains multiple CSV files and streams it back to the user (no file is saved on the server). However, I want to create an excel workbook instead (can be traditional xls or Office Open XML xlsx format) with each CSV 'file' being a spreadsheet.

How can I do this, without resorting to Office Automation on the server or a commercial 3rd party component?

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[Code].....

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I am trying to work through a sample of exporting a gridview to an excel spreadsheet.I found the code below on the internet. I pasted it into a test.aspx page. I need to establish a connection to the NorthWind Database. Or if you have a better example of exporting a gridview to excel, share. Here is the location of the northwind.mdb on my pc: (and is this sample looking for an access database or a sql database...what is the filetype of a sqlserver database?) See code below

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[Code]....

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I'm exporting an ASP.NET gridview to Excel using the following function. The formatting is working really well, except I need to freeze the header row in Excel on the export. I'm really trying to avoid using a 3rd party Excel plugin for this, but unless there's some archaic excel markup in my AddExcelStyling function.

[code]....

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I'm trying to upload an excel spreadsheet using the FileUpload control, read the excel sheet using OleDb connection, and save the strings onto a sql server database.Then, I'm trying to read each string in another method.My web app is currently hosted on the network on my local box, and using savePath= @"C:desktop" like I had it previously wasn't working, so I figured using a sql server database would work for being able to save the file and open it again... but I'm getting confused on how to do so, so i tried using my old savePath but it's not working anymore. So... I'm really at a lost on what to do and how to fix it.

[Code]....

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Create Excel Spreadsheet In Website

Nov 14, 2011

On an .aspx page in a web site I need to retrieve some data from a sql server database and, instead of displaying it in a Gridview, I need to put the data in a spreadsheet and present the user with a Save As dialog.

I'd prefer to do it without using the Office / Excel / Interop com object - so, from what I've read so far, I can do this by returning XML data from SQL Server?

Normally I get data from SQL Server and populate a dataset or datareader with it - and then use this as the Datasource of a GridView.

If I run this in SQL Server ...

Code:
SELECT UserID, UserName FROM tblUsers FOR XML Auto, Root('Users')

It produces this ...

Code:
<Users>
<tblUsers UserID="1" UserName="Steve" />
<tblUsers UserID="2" UserName="Andrea" />
<tblUsers UserID="3" UserName="Zebedee" />
</Users>

So, first question - how do I get the data from SQL Server into my .aspx page? (All data access is done with stored procedures - so, from my data access class normally I create, for example, a SQLDataReader and populate it by calling a stored procedure. What object would I populate with the results of a stored procedure that contains a select statement with 'FOR XML Auto'

Then, assuming I get the XML into the .aspx page - how do I get it into a spreadsheet so that there are two columns called UserID and UserName and 3 rows with 1, 2 and 3 in the first cell and Steve, Andrea and Zebedee in teh second cell?

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My company has new customers in Brazil and we realized that our excel reports are not working when our Brazilian customers tried to open the reports in their Brazilian versions of excel.

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I've tried several methods to get my excel reports to work: First I left the excel workbook in the "en-US" culture and tried simply chaging the number format for Brazil to:

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And this formatted the regular cells but the formulas still failed to show a value. Instead they showed a 0 value.

Next I tried changing the workbook to the "pt-BR" culture and that also forced me to translate the formula names (Sum -> Soma, If -> Se) but they still wouldn't should a value and instead showed a #Name/#Nome error. Interestingly enough the formulas would work if I edited the cell and hit enter. The formula wouldn't change but it would some how fix that cell.

I need to be able to out excel reports that can format dates/currencies and apply simple formulas (IF, Sum) for other excel cultures.

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I would like to access an Excel 2010 spreadsheet via ASP.NET 4 - what is the best (i.e. straight forward) method to do this? I would like to update the spreadsheet via ASP then read the results of the data from Excel back to a web form.

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Feb 25, 2010

I have a gridvidew (GV2). I want the user to be able to export the contents of this gridview to an excel spreadsheet for offline processing.

Here is my subroutine:

[code]...

On clicking the ExcelButton I get the error message:

Control 'GV2' of type 'GridView' must be placed inside a form tag with runat=server.

The control GV2 is in fact inside:

<form id="form1" runat="server"></form>

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I would like to be able to copy one row and five columns from an Excel spreadsheet to a table like structure on a ASP.NET web form. The idea is keeping the data in the exact row and column from Excel to the table like control on the ASP.NET web-form. Then I want to be able to save to the contents of the ASP.NET control to a database by a buttoon command click. What ASP.NET control would allow me to do this? Gridviews and datagrids don't seem to allow me to do this.

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How To Show Information From An Excel Spreadsheet In A Web Page

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I want to show information from an excel spreadsheet in a web page. The xls will have maybe 5 columns, and as many rows as needed. The columns will be 'Name', 'Created Date', 'Expired Date', 'Owner', and maybe down the road maybe more.

What I would like is for the C# to nightly read the xls, and display the information in a table on the website.

If there is a PDF available for download I am going to link that as well.

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Jun 22, 2010

I've tried many combonations and looked over may websites for sample code but no matter what I do I only getting a few cells of data from my Excel DataSet.

CODE:

using System;

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I am generating, using a ASP routine, Visual Basic, a HTML table in a file to be read by MS Excel.

After Excel reads the file, some of the numbers (in some cells) are shown as "text", not numbers: they cannot be operated upon, like decimal numbers. (added, subtracted...)

If I click in a "number" stored as "text" cell, I can "edit" the cell and remove an invisible "apostrofe" to the left of the number; after that, the "text" becomes "number" again.

Seems like Excel is inserting a non-visible character before the number, so that it is stored as "text"

It happens to some lines and not to others...

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I simply have a lot of data in two columns in an excel spreadsheet of data that I gathered. I want to copy and paste this (manually) into a table that I have created in my ASPNETDB in my ASP.NET web application. I thought it'd be as easy as copy the column, and hit paste in the "table data" view, but it's not (it only pastes one cell).

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AJAX :: Allowing Clients To Download Excel Spreadsheet Using Response.Write?

Jun 24, 2010

I've a gridview which I am rendering to a html text writer and allowing clients to download as an excel spreadsheet using Response.Write. I'm using AJAX in my website now and suddenly it stopped working. This is the code I'm using

public static void Convert(DataSet ds, HttpResponse response)
{
try
{
//1. declare filename to export
string filename = "export";
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response.Clear();
response.Charset = "";
//3. set response mime type to excel
response.ContentType = "application/vnd.ms-excel";
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StringWriter stringWrite = new StringWriter();
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HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
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GridView gv = new GridView();
//8. set gridview datasource to the dataset
gv.DataSource = ds.Tables[0];
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gv.DataBind();
//10. tell the gridview to render itself into htmltextwriter
gv.RenderControl(htmlWrite);
//11. output html
response.Write(stringWrite.ToString());
//12. end response
response.End();
}
catch (Exception ex)
{
string str = ex.Message;
}
}

I've found that Response.Write doesn't work with AJAX. Are there any alternatives to this?

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Databases :: Reading From An Excel Spreadsheet - Fields With Numbers Are Showing As DBNull

Nov 8, 2010

My web app is allowing the user to load a column of data from an Excel spreadsheet. For whatever reason, as it parses the data, fields that are just integers are coming up as System.DBNull. (Code in VB.NET but I work with C# as well, so feel free to post C# solutions)

[Code]....

dataRow(0) is System.DBNull when the Excel file has a number in Column A. Here's what the Excel looks like

Column A
100S200
WEIRD
ABCDEFG
123456
100S12791
119655902
100S12792
105E17530
123456 and 119655902 come through as DBNull

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Forms Data Controls :: How To Generate Excel Sheet

Nov 14, 2010

how to generate excel sheet from ASP layout

I have an ASP page that contains gridview and below textboxes and drop down and other controls

i would like to generate and excel sheet from my ASP layout page

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Web Forms :: How To Generate An Excel Sheet On Click Of A Submit Button

Mar 31, 2010

I have a web based form which is used to enter info into an Access DB. When a user clicks on the submit button in the form the information entered in the form goes into the DB. I have made the connection between aspx form and Access DB through an asp page using ADO.net.I wanted to add another feature into the form where when the user clicks the submit button a preformattedxcel sheet pops up with all the info filled onto it automatically (from the form). The user just need to save the file later on.

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I want to generate the url and send it to users via email.I have the following in my Global.asax

[Code]....

I am new to mvc and I would like to use urlhelper to generate the complete url, i.e, http://servername/issue/details/issueID =1234. How can I do that.

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