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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Similar Messages:
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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Jan 18, 2011
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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Dec 4, 2012
I need to convert a excel file to pdf file in asp.net. How to achieve this in c#.
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Jan 17, 2011
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
' Connect to the Excel Spreadsheet
Dim xConnStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=C:Users cs0028DesktopUpload1.xlsx;" & _
"Extended Properties=Excel 12.0;"
' create your excel connection object using the connection string
Dim objXConn As New OleDbConnection(xConnStr)
objXConn.Open()
Dim objCommand As New OleDbCommand("SELECT * FROM [Sheet1$]", objXConn)
Return objCommand
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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");
Response.ContentType = "application/vnd.xls"
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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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 =
"file/xlsx"
Response.AppendHeader(
Response.TransmitFile(
Response.End()
"Content-Disposition",
"attachment; filename=AllReports.xlsx")".xlsx")
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Jun 9, 2010
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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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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May 17, 2010
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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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
I want when it export these column into excel it change column name like below
Id CustomerName Code Estate
How I can do it?
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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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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;
string destination = serverpath + filename;
//File.Delete(destination);
string[] existingFilesArray = System.IO.Directory.GetFiles(serverpath, "*.xlsx");
foreach (string existingFile in existingFilesArray)
{
System.IO.File.Delete(existingFile);
}
File.Copy(filepath, destination);
}
The code looks for a file and uploads the file to another location.
it fails at the last section
It works for me on my machine. but not the users
File.Copy(filepath, destination);
NO matter were the users put the file it fails.
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Apr 1, 2010
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
' Send HTTP headers that specify Excel filename, MIME type, and character set
Dim sTemp As String = "attachment;filename=CoverageCase" & Session("OpenCase").casekey.ToString & ".xlsx"
Response.AddHeader("content-disposition", sTemp)
Response.ContentType = "application/vnd.ms-excel"
Response.Charset = ""
' Create objects used to render the controls
Dim strw As New System.IO.StringWriter........
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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Jan 12, 2011
i like to create a web application,in that i need to get the resumes from the user,then i need to publish that resume to the manager in date wise..
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May 18, 2010
I need a code which can export the data from XML file to the Excel file.
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Jul 17, 2015
Article : Encrypt and Decrypt Username or Password stored in database
The whole thing works very well but my issue is, after entering and encrypted password how does the user then log into the database?
When a user types in his password, the typed in password will not match the ecnrypted value in the database.
So how do I decrypt what is in the database and compare with what the user typed in and then validate the user.
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Oct 28, 2010
I would like to export the data from GridView to Excel 2007 format XLSX.
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Feb 23, 2011
on it,how can i acheive thisAround 16 users are using web software developed in VB.Net-MySql.i wanted to alert with message to user B if he opened the same record of User A,User A already opened working
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Feb 24, 2011
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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Sep 27, 2010
I have a page that does an upload of an xlsx file to a datatable and write into SQL.
That is working, my problem is when i upload the file and pass the values to the datatable some of them are showing in the wrong format and the column name dont
appears.
e.g.:
Hours at home
Hours working
3:00
8:00
01-01-1900 1:35:00
01-01-1900 2:35:00
01-01-1900 3:35:00
The first 2 columns its how i want the info the third is how my problem looks like.
I've tested and the problem occurs when the same column has more than one value.
The format of the cells is h:mm if i change it to text it works fine but i dont want that because the time will be converted to semething like this 0,123456789.
I dont know if it matters but the xlsx file is kinda complex and has 10,2MB.
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Sep 23, 2010
I am just trying for simple HTML page that open xlsx or xlsm file in browser, but when i open the html the file is getting opened in excel 2007 but not embed in browser (IE)..
here is the html code
<HTML>
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Nov 22, 2010
I am using content page, Data is huge so the xls opens very very slow, so I want the gridview to be exported to xlsx.
I have already tried to use content type: application/vnd.openxmlformats- fficedocument.spreadsheetml.sheet
I am using .Net 4.0, C#
The code I am using the following code to export to excel:
Response.Clear();
Response.Buffer = true;
string attachment = null;
attachment = "attachment; filename=ABC.xls";
Response.ClearContent();
[Code].....
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Jul 30, 2010
Getiing user address details from active directory like street, state/province etc,..
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