Excel - Traversing An Xls / Xlsx File?
Jun 12, 2009Is there a simple way in vb.net to load an excel file and read it? perhaps there is a way to load the file but have it not be visible to the user?
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Import Data From XLS,XLSX,CSV,XML Excel File To .NET?
Jul 5, 2010How do i this?Import data from XLS,XLSX,CSV,XML excel file to .NET?
View 6 RepliesError - Microsoft Office Excel Cannot Access The File 'D:OfficeStationaryV0.2ReportTMPReportItem.xlsx'
May 19, 2011I used Visual Studio 2005. It works well when testing, but when I publish it got error: Microsoft Office Excel cannot access the file 'D:OfficeStationaryV0.2ReportTMPReportItem.xlsx'. There are several possible reasons: - The file name or path does not exist. - The file is being used by another program. - The workbook you are trying to save has the same name as a currently open workbook.
my following code is:
Dim ExcelApp
As New Excel.Application
Dim xlWorkBook
As Excel.Workbook
[code]....
Read Excel XLSX Through DotNET?
Nov 22, 2011how to Read Excel XLSX through DotNET?
View 1 RepliesAccess Excel Worksheet Pre Defined With Name Books.xlsx Through .net?
May 6, 2010i am new to vb.net programming i am trying to access excel worksheet pre defined with name Books.xlsx through vb.net i have taken a form with one command button i wrote below code in that:Imports Microsoft.Office.Interop Imports System.Runtime.InteropServices
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Open An Existing Excel (.xlsx) Spreadsheet Into MemoryStream?
Apr 23, 2010I want to know how to open an existing Excel Spreadsheet into a MemoryStream to that I can write to the Response object.
Dim ms As MemoryStream = CreateBasicWorkbook(True)
Dim FileName = "\Ihe-webprod1tvinjurytrackingdocuments$ExcelSpreadsheetsHours.xlsx"
I need the code to get File the xlsx file to a memory string
Response.ClearHeaders()
Response.ClearContent()
Response.Clear()
[code]....
Access Excel Worksheet Pre Defined With Name Books.xlsx - Exception From HRESULT: 0x800A03EC
May 6, 2010i am new to vb.net programming i am trying to access excel worksheet pre defined with name Books.xlsx through vb.net i have taken a form with one command button i wrote below code in that:
[Code]...
ADO.NET 3.5: Write DataSet / Table To Excel 2007 .xlsx Spreadsheet (ping Paul Clement)
Sep 19, 2011I am attempting to write the entire contents of an ADO.NET DataSet to an Excel 2007 spreadsheet and, while having partial success, I am unable to dump the contents of the DataSet into the .xlsx file. "Partial success" meaning that I can generate the spreadsheet(s) ok, but cannot get the DataAdapter.Update to work.
[Code]....
IE6 Opening XLSX File As An XLS?
Jul 14, 2010My application generates XLSX files based on a users requirements.
After the XLSX file is generated the user is redirected to where the file is saved using Response.Redirect...
Response.Redirect("filename.xlsx")
When the user then opens the file... they recieve this message.
The file you are trying to open, 'filename.xls', 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?
As a temporary fix I've instructed my users to press "Yes" when they receive this message and the file opens perfectly fine.
Does anyone have any ideas why IE6 is trying to open an XLSX file as an XLS?
Settings - FTP An .xlsx File
Mar 3, 2010I am trying to FTP an .xlsx file. I have to code uploading the file, but it is uploading it in a zip folder. how I can fix this? Is it a setting I am seeting with my code, or is it a setting the the FTP page itself? The code shown below is the code i am using to FTP the file. It was posted to my other thread by bdbodger.
[Code]...
Display Excel Data With The .xlsx Exstension In Windows Application Using Data Grid View?
Sep 28, 2011I have an excel file that I would like to load into my form and display there.
View 1 RepliesUnable To Import Xlsx File In Asp Net
Jan 17, 2011I 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[cod]e...
.net - Opening XLSX File Via OleDb Works In WinForms But Not Always Via ASP.Net?
Apr 18, 2012I've built a simple library to import data from XLS/XLSX files. The code runs perfectly in my WinForms app but occasionally throws exceptions when I run it from ASP.Net. The "occasional" part seems to based on file size. My test file is about 16,000 rows and 18 columns totaling about 4MB as an XLSX file. If I drop rows (down to about 12,000) it works or if I drop columns (down to about 12) it works or certain combinations of these (14,000x14, etc) it works. This leads me to believe that I'm possibly running into a memory constraint somewhere. Below is the distilled code that's not working:
Dim dsn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=""c: est.xlsx"";Extended Properties=Excel 12.0"
Using Con As New System.Data.OleDb.OleDbConnection(dsn)
Con.Open()'Exception thrown here
Con.Close()
End Using
The exception that I'm getting is:External table is not in the expected format Searches for this all talk about getting the DSN correct and since it works on the desktop I know I've got that right.My test machine is a Windows 7 64-bit with the Microsoft Access Database Engine 2010 Redistributable - 32 bit installed. (My machine has Office 2010 32 bit installed which is why I have the 32-bit ADE installed, it won't let you install 64-bit.) I've set my IIS app pool to allow 32-bit applications which I needed to get ADE to work in the first place. I'm running the v4 Framework and as far as I know my IIS settings are pretty much standard.Like I said, the code works every time when I run it through a WinForms app but occasionally fails through ASP.net on the same machine.
Function Be Used To Open A Particular Worksheet Called Report1 In The Report.xlsx File
Dec 15, 2011I have used the Process.start function to open an Excel file as shown in the code
Process.Start("report.xlsx") and it works perfectly well.
My question is can this function be used to open a particular worksheet called Report1 in the report.xlsx file. If so what would the code be.I have spent many hours trying to research this topic but without success.
Import Xlsx File Into Using TransferSpreadsheet When Path Is Constant But Filename Is Variable
Oct 1, 2009I use the followoing code to import an xlsx file into an Access 2007 table. It works fine when I enter the exact file name.However, part of the file name is a date which will change every week.The file location does not change,just the date in the file name.[code]I've tried using a wildcard but I get a Run-time error 3011.Db engine could not find the object. Make sure the object exists.
View 1 RepliesTraversing Through A List?
Sep 17, 2010I was wondering if there was a simple way to traverse through a list, while only grabbing the specified class.here's what I'm doing now
[Code]...
Traversing Through GridView Data?
Apr 20, 2011I need to loop through a gridview to then compare it to my database.this is what i have now:
Dim rows As Integer = gwResults.Rows.Count()
For Each row As GridViewRow In gwResults.Rows
'move through rows and check data in each row against the dataset
cSource.GetDetails(Convert.ToInt32(row.Cells(1).Text))
Next
is it possible to get gridview values in each column by calling them by a name, instead of index? so maybe have something like cells("userID") instead of cells(5)i have many columns, and indexes could get really confusing.
Traversing - If Press Move First Should Get First Element
Oct 12, 2010I need to traverse in VB.Net I have 4 command buttons namely Move First, Previous, Next and Last. I m using MS Access as my6 back end. If i press move first i should get first element If i press move previous i should get prev element If i press move last i should get last element If i press move next i should get next element
View 1 RepliesTraversing A Two Dimensional Array With A Loop?
Apr 1, 2011traversing a two dimensional array with a loop?Here is my code, the only thing is that I can get it to go through the array.
Dim results(,) As Integer = {{1, 0, 1, 0, 3, 2},
{2, 1, 0, 2, 0, 0},
{3, 0, 3, 0, 1, 0},
{4, 3, 2, 1, 0, 0}}
[code]....
Use XPath To Navigate - Traversing The Nodes
May 12, 2011The xml document is like so: ... I would like to use XPath to Navigate but I am not sure where to get started. Can anyone point me to some examples of traversing the nodes? I have the first part figured out but not sure how to iterate through all l1,l2,l3,l1 nodes...
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Using Export Wizard In Sql 2005 To Export To .xlsx File?
Aug 25, 2009I have been able to export data from a query to the xlsx file..howerver those fields which are currency in my sql server 2005 table are currency are showing up in the spreadsheet as text. The column mappings are correct when I look at it in connection manager.
Also Is there also a way to create a new worksheet each time the export is run or does the file have to be already named?
Asp.net Using Oledb To Export Excel File Returns Empty Excel File
Feb 24, 2010I am using asp.net oledb to export information to excel file. I encounter problems when the information to export becomes too big, in this case the code I have given below, the excel file generated becomes an empty spreadsheet.If I changed the loop to 1123 for insertion of the rows. The generated excel file is fine, 1125 rows, and 4 columns shown.A test program in windows form is also working fine regardless of how many rows.[code]I couldn't find a solution to my problem as well. What I did eventually was to run the process using another separate windows service. The code works perfectly fine running from a windows form or service program, but not asp.net, not sure why.
View 1 RepliesExport To Excel Excel Could Not Open The File Because The File Format Is Not Valid?
May 8, 2012I have this issue that occurs with me and driving me crazy i have a report that contains thousands of records and i need to export it to excel , but the excel normal extension .xls
is showing missing records at the end of the file , so i save my file as an .xlsx extension it saves correctly but when i open the file it generates an error
"Excel cannot open the file '<var>filename</var>.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."but when i test the file i drag it and open it in an empty notepad all the records shows up correctly
Converting .xls To .xlsx In .net?
May 22, 2012im having an issue with some files we created in the older versions of excell coming in with the controls in the file having upside down text. i found a fix involving converting the file to a .zip and then deleting some "flip:y" instances but i have thousands of files so i need to automate it. im looking for a way to convert the .xls file to the compatable .xlsx version without using Excel.
View 1 RepliesIMPORT .xls - Xlsx To Datagridview
Dec 29, 2009i try to import data from EXCEL to DATAGRIDVIEW. Consider in EXCEL i have data;
[Code]...
Office Automation :: Excel File - Set A Reference To The Microsoft Excel 12.0 Object Library
Oct 6, 2009I'm trying to upgrade a VB6 app to VB 2008. I have read the article in the tutors corner about automating Excel from VB but I cannot get it to work. Heres what I have done:
1) set a reference to the Microsoft Excel 12.0 Object Library
2) Added "Imports Excel = Microsoft.Office.Interop.Excel" to the top of the module
3) in a routine I have added: Dim X As New Excel.Application Here's where I get an error: Error 75 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.
Combine Excel File & Csv File And Save As Excel.?
Jan 26, 2009I'm working with vb.net 2008. My application generates 1 excel file (with login details etc). The application will store user results for various sections into csv files. I'm trying to combine the csv files into the excel file. I'm trying to get this to work with one csv file initially ...but I am ending up with a blank Excel file. This is what I've tried so far:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim oExcel As Object
[code].....
Combine Excel File & Csv File And Save As Excel?
Jan 26, 2012I'm working with vb.net 2008. My application generates 1 excel file (with login details etc). The application will store user results for various sections into csv files. I'm trying to combine the csv files into the excel file. I'm trying to get this to work with one csv file initially ...but I am ending up with a blank Excel file. This is what I've tried so far:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim oExcel As Object
[code].....
Office Automation :: Code Hangs When An Excel File Is Opened To A Excel Workbook Object?
Aug 3, 2009I use the following code snippet
Dim exlapp As New Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook_new As Microsoft.Office.Interop.Excel.Workbook
Dim strOriginal As String
strOriginal = Server.MapPath(Request.ApplicationPath & "/Attachments/") & "abc.xls"
xlWorkBook_new = exlapp.Workbooks.Open(strOriginal)
The code hangs in the last line. It works fine in the development environment. i deployed in windows server 2000 ,where I get this issue. the browser goes half way and throws the below exception after some time
[Code]...
I have set the identity impersonate to true in web config. This should be mostly an access rights issue.I have even provided access rights for the "everyone " user in the excel file and as well for the interop component. Please post ur valuable comments.
Code To Convert Xlsx To Csv Using Vbscript?
Apr 15, 2012give me a code to convert xlsx file to csv using vb code?
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