Web Forms :: Default Save As File Type - Xls / Xlsx?

Feb 10, 2011

While exporting the html to Excel using Response.Write() in ASP.NET and when I try to save as the exported file I'm getting the default save as file type 'Web Page *.html, *.htm in excel application. Is there an any fix to get the default save as file type as xls or xlsx?

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Dec 9, 2010

I am validating user from Login.xlsx file. It was working fine by validating email and password from that file. For testing i got new file same contents of file but added some more user names. So after that when i validating the user i am getting the following error "Data type mismatch in criteria expression".

But when i replaced the new to old one it is working fine. The contens of both files are the same. So why this kind of error happened.

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Is it possible to only display the desired file type in the file type dropdownlist in the browser window when we click the browser button of the fileupload control of asp.net? If yes then how?

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Web Forms :: Download .xlsx File From Server

Sep 16, 2010

Iv created a web application using vb.net 2005. Its working fine and running fine on the server (Microsoft Server 2003). The problem i have is to dowload a file from the same server using vb.net. I tried using this code but it gives me a : "is not a virtual path" error.

Response.ContentType =
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Response.AppendHeader(
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Web Forms :: Change Column Name In Xlsx File When Execute From Database?

May 7, 2015

according below thread

[URL] 

I export xslx file from database from estate_p table in Estate_p  table are below column

Id   Name   Behcode   Estate

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Id   CustomerName     Code   Estate 

How I can do it?

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Forms Data Controls :: How To Determine Excel .XLSX Version From Uploaded File

Aug 10, 2010

In my application I've allowed users to upload Excel 2003 .xls files, and import them into a Gridview. This has been working fine using the following connection string:

[Code]....

Now my users are using Excel 2003, 2007 or 2010, I need to allow the newer file extensions (.XLSX) to be accessible too.

Therefore, within the connection string above I presume I could change the Excel version from 8.0 to 9.0 or 10.0 respectively, but is there much difference between Excel 2007 and Excel 2010 files?

If so, is it possible to 'detect' the Excel file version so that I can use the appropriate connection string to read the data from the files?

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Web Forms :: Error - Could Not Find File 'C:CHURCHROOF - CRIME Live 150110.xlsx'

Jan 15, 2010

I get the following error message:

Could not find file 'C:CHURCHROOF - CRIME live 150110.xlsx'.

When running the following code:

if (FileUpLoad1.HasFile)
{
string serverpath = "\\server1\Temp\ ";
//top.window.close();
string filepath = FileUpLoad1.PostedFile.FileName;
string filename = FileUpLoad1.FileName;
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string[] existingFilesArray = System.IO.Directory.GetFiles(serverpath, "*.xlsx");
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The code looks for a file and uploads the file to another location.

it fails at the last section

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Unable To Import Xlsx File

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I am unable to import xlsx file in Asp .Net getting below error:-

Could not find installable ISAM.

I am using below code for importing xlsx file:-

'function
Protected Function ExcelConnection() As OleDbCommand
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Dim xConnStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
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Dim objXConn As New OleDbConnection(xConnStr)
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C# - Download .xlsx File Using Response.TransmitFile()?

Feb 16, 2010

I'm working on some code that generates an Excel spreadsheet server-side and then downloads it to the user. I'm using ExcelPackage to generate the file.

The generation is working just fine. I can open the generated files using Excel 2007 with no issues. But, I'm having trouble downloading the file with Response.TransmitFile().

Right now, I have the following code:

//Generate the file using ExcelPackage
string fileName = generateExcelFile(dataList, "MyReportData");
Response.AddHeader("content-disposition", "attachment;filename=FileName.xls");
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Response.Charset = "";
Response.TransmitFile(fileName);

When Excel 2007 opens the file downloaded as above, it gives the "file format doesn't match extension" warning. After clicking past the warning, Excel displays the raw xml contents of the file. If I change the file extension, like so Response.AddHeader("content-disposition", "attachment;filename=FileName.xlsx");
Excel 2007 gives an "Excel found unreadable content in the file" error, followed by a dialog that offers to locate a converter on the web. If I click "no" on this dialog, Excel is able to load the data.

I've also experimented with different MIME types, like application/vnd.ms-excel and application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, combined with file extensions of .xls and .xlsx. All combinations result in one of the two behaviors mentioned above. What is the correct combination of file extension and MIME type to use in this scenario? What else could cause this failure, other than an improper MIME type or extension? FYI, this is occurring with Visual Studio's built-in development web server. I haven't yet tried this with IIS.

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Databases :: User Validation In Xlsx File?

Aug 20, 2010

I am validating user from Login.xlsx file. It was working fine by validating email and password from that file. For testing i got new file same contents of file but added some more user names.So after that when i validating the user i am getting the following error "Data type mismatch in criteria expression".But when i replaced the new to old one it is working fine. The contens of both files are the same. So why this kind of error happened.

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Unable To Open .xlsx File On The IIS Server?

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I have a link http://Test/Folder/file1.xls which is working fine But if I typehttp://Test/Folder/file1.xlsx it is not working. It is giving me a file not found error.So when I read online every one is suggesting me to add the correct MIME type at tyhe IIS level. I don't know if that's the correct thing to do.I opened IIS and navigated to folder FOLDER right clicked and selected properties -> HTTP Headers -> MIME Types->New -> Extension -> .Xlsx-> What should i be entering for MIME type?

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What is the best way to insert and retrieve images like :

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Databases :: Upload Xlsx (MS Excel) File To Oracle DB?

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I would like to upload a xlsx file to Oracle DB (Oracle 11g). I'm using VS .NET 2008 (C#, web).

The file contains around 500 rows.

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Sep 24, 2010

I am trying to fetching the data from Book1.xlsx file. The program is not working and throws an exception. check the code and tell me where I am doing the mistake?

[Code]....

The exception is:

An error: The Microsoft Office Access database engine cannot open or write to the file ''. It is already opened exclusively by another user, or you need permission to view and write its data.

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Excel cannot open the file "Report.xlsx" because the file format or 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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Forms Data Controls :: Saving Repeater Data As .xlsx File?

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Using the Interop for Excel 2003 I had a nice little link that saved or opened the repeater content as .xls. Now we are using Excel 2007 and I get file format error messages. When I click the OK button on the error pop-up Excel closes. Does anyone out there know how to convert my code to handle the .xlsx format? I've been reading up on Interop for 2007 but none of the examples seem to work for this particular simple task. Here is my code from the "Export to Excel" button click:

Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExport.Click
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I found a thread from a couple of years ago dealing with this but there was no solution [URL]. There were a couple of tortureous work arounds but neither work for me.

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Feb 16, 2013

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Web Forms :: How To Open A Popup With Save Button To Save Txt File

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Web Forms :: Stream PDF To Browswer, Then Save As PDF / How To Set It To Default To Pdf

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I have a form that streams a pdf to the browser. That works fine, the problem is when the user clicks the "save" button on the PDf that has been streamed, it saves the .aspx page! as to how I can set it to default to .pdf?

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Forms Data Controls :: No Default Member Found For Type 'Integer'?

Aug 13, 2010

I'm trying to retrieve selected DataKeyValue and I'm getting this error.

[Code]....

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Forms Data Controls :: GridView.DataKey Error: No Default Member Found For Type 'DBNull'?

Sep 16, 2010

I am binding SQL data to a GridView. The GridView's DataKeyNames property is set to the SQL column called "utID"

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No default member found for type 'DBNull'. I am using the code below.

What object types are stored within DataKeys (I thought it was just integers or strings)

How to handle a NULL datakey value to prevent this error occurring?

I don't want to use Try Catch because it's too much of a 'hack'

[Code]....

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How To Save A XML String Into A File And Pop Up A SAVE AS... Dialog Box For The User

Dec 15, 2010

My Asp.Net calls a SQL sproc and returns a XML file as a string. This is what I need to do:

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Parser Error: Could Not Load Type 'Default'?

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I have built an application in ASP.NET 3.5 framework and it is working fine on localhost but when i am uploading it on my server the page gives an error on loading "Parser Error Message: Could not load type 'Default'." <%@ Page Language="C#" AutoEventWireup="true" Debug="true" CodeFile="Default.aspx.cs" Inherits="Default" %>

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Web Forms :: When Generating The XML File And Popup To Save The File

Nov 1, 2010

I am getting a problem

i am trying to generate the xml file and popup to save that file. on the button click i have applied two properties on the button server control

OnClientClick = javascript:this.disabled=true;
UseSubmitBehaviour=False;

the problem is when i am click on the button progreesbar is coming but after the completion of geterating the file (file Generated) but the button is still disabled and progressbar image is still showing.

for save to the xml file i am using this code after the xml write successfully.

Response.Redirect("~/Folder/frm_download_file.aspx?Filepath=" &
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