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.
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.
View 3 RepliesI 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.
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.
I have two databases (DB1 & DB2) from which i wish to build a single table/gridview output, ideally i want to be able to sort the table by using any data.
However i cannot seem to figure out how to have more than one datasource per Gridview, and if i have more than one Gridviews then i can't sort all the data by any of the columns.
This is a oneway street, i do not want to update the databases from the webfront end.
Here is a Trimmed Down Version of what i have
[code]....
I am fetching data from oracle data base in asp.net application. To achieve this functionality i have used Oracle.DataAccess dll . In my developement enviorment it working fine.
But once I deployed this code on IIS 6.0 it is stopped working and I checked my log and found connection not get established . Then I make sure Oracle.DataAccess.dll present in to bin folder also I try to put this dll in side GAC, but still my code is not working on deployed server.
MySqlCommand cmd4 = new MySqlCommand("select emp_name from employee_details where emp_category='" + cat[j] + "' and no_ofcassigned=(select MIN(no_ofcassigned) from employee_details)", AL.con);
MySqlDataReader reader2 = cmd4.ExecuteReader();
string emp=null;
while (reader2.Read())
{
emp = reader2[0].ToString();
}
reader2.Close();
i am using the above code to fetch the employee name from the datatable according to the minimum value in the column 'no_ofcassigned' in specific category but here if i have more than 3 employees with the same no_ofcassigned is there then the query is not
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.
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?
I need to convert a excel file to pdf file in asp.net. How to achieve this in c#.
View 1 RepliesI 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
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.
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")
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?
View 1 RepliesWhile 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?
View 6 RepliesExcel 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
View 2 Repliesaccording 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?
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.
I need a code which can export the data from XML file to the Excel file.
View 3 RepliesI would like to export the data from GridView to Excel 2007 format XLSX.
View 27 RepliesI would like to export the data from GridView to Excel 2007 file (xlsx). Can you please provide me the code.
View 4 Repliesi am working on a project and i have the data in a .csv file.
i want to know how can i retrive data from the .csv file? which control should i use that would have that function?
I would like to export the data from GridView to Excel 2007 format XLSX.
View 2 RepliesI am trying to test website on a remote server to see if I can read or write to a MySql Database.In VS Web developer 2010 Express edition, I created a new website and saved it via ftp on the remote host. I have added the 'Mysql.data.dll' to the website and placed it in the bin directory of the project.When I try to run the program i get "Could not load File or assembly MySql.Data, Version=6.3.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified.
[Code]....
The remote server supports .Net v2, so I have made my application focused on v2 framework. I have tried similar code on my local machine and works fine.
website using text file to store data and display it using html codings. The requested website must be able to do the following functions:
1) Browse for template using txt file and select the txt file as template. (Font-styles, headers, tables....etc)
2) Browse for txt file that stores the data and display them in a so called table format categorized properly.
3) Able to do a search function and store the search results in a new txt file. (Which means a new txt file is created everytime someone performs a search and the search results is stored in the new created txt file)
Is there any website with informations/tutorials on these?