Read Excel XLSX Through DotNET?
Nov 22, 2011how to Read Excel XLSX through DotNET?
View 1 Replies
ADVERTISEMENT
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?
View 4 RepliesConnection String To Read .xls & .xlsx Files
Jun 9, 2011I would like to get the connection string for both 2003 excel (*.xls) and 2007 excel (*.xlsx). I want to read both files depends upon the selection.
When I was using this code
Dim cn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & a_sFilepath & ";Extended Properties= Excel 8.0;HDR=YES;")
I get an oleDB exception "Could not find installable ISAM" and also I would like to know wheather we can use same connection string for both .XLS and *.XLSX
Connection String To Read .xls & .xlsx Files?
Jun 5, 2011I would like to get the connection string for both 2003 excel (*.xls) and 2007 excel (*.xlsx). I want to read both files depends upon the selection.
When I was using this code Dim cn As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & a_sFilepath & ";Extended Properties= Excel 8.0;HDR=YES;")
I get an oleDB exception "Could not find installable ISAM" and also I would like to know wheather we can use same connection string for both .XLS and *.XLSX
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 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
[Code]...
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]...
Error - 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]....
X86 App On Machine With Office X64 Installed Read Xls, Xlsx, Mdb And Accdb Files Using System.Data.OleDb?
Apr 19, 2012Question: How do I programmatically determine which provider to use (Microsoft.Jet.OLEDB.4.0 vs Microsoft.ACE.OLEDB.12.0) when my app runs as a 32-bit process on a machine with Office x64 installed?
I'm developing a VB.net WinForms app in VS 2010 and targeting both x86 and x64.The app processes data from xls, xlsx, mdb and accdb files using System.Data.OleDb:Dim oConn As OleDbConnection = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=...")
The x64 version of the program works as expected. The x86 version works as expected on a system with Office x86.When I run the x86 version on a machine with Office 2010 x64, I get the following exception when trying to open a connection:
The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.I believe this is because I'm running Office 2010 x64 so the x86 data access components are not installed.I can get it to work for Office 2003 files (*.mdb and *.xls) by changing the provider to Microsoft.Jet.OLEDB.4.0.
How do I figure out which provider to use when running as a 32-bit process on a machine with Office x64 installed?Ideally, I'd like a function:If ProviderIsAvailableFor("Microsoft.ACE.OLEDB.12.0") Then
Else If ProviderIsAvailableFor("Microsoft.JET.OLEDB.4.0") Then
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]....
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 RepliesRead Excel Data (Excel 2007 SP1, On Windows XP SP3) With .net 2008?
Oct 7, 2009I am trying to read excel data (Excel 2007 SP1, on Windows XP SP3) with visual basic .net 2008 (VB 9.0 SP1). I have tried several attempts and whatever I do I am getting the following error message: System.Runtime.InteropServices.COMException was unhandled ErrorCode=-2147319784 Message="Altes Format oder ungültige Typbibliothek. (Exception from HRESULT: 0x80028018 (TYPE_E_INVDATAREAD))" Source="Microsoft.Office.Interop.Excel" Message="Altes Format oder ungültige Typbibliothek." Translated: Old format or unknown type libraryI have added the reference "Microsoft Excel 12.0 Object Library" to my project. I am assuming that I might have to add a different or an additional reference, but I do not have any clue which one to use. List of things I have already done:- Searched other forums- Altered the language settings- Tried it on an other Computer (Win XP SP3, Excel 2007, Visual Basic 2008 Express)- Ran the diagnostics tool in Excel - Updated all updates etc...- Reinstalled Visual BasicI really do not have any clue why it should not work?
Imports excel = Microsoft.Office.Interop.Excel
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim xlsApp As excel.Application
[code]....
VS 2008 : Use Code To Read Excel File With Excel Installed?
Feb 7, 2012I am uploading an excel file to my app and want to read it. Do I need to have excel loaded to read this?I am getting an error of Object reference not set to an instance of an object.
Public Function GetExcelData(ByVal ExcelFilePath As String) As DataTable
Try
Dim OledbConnectionString As String = String.Empty
[code]....
DB/Reporting :: Read Excel File Without Excel Installed Using VB?
Feb 27, 2012I tried to read excel file using the method i found here [URL] But i get an error on ADODB.Connection saying "Type 'ADODB.Connection' is not defined" in the following code:
Code:
Private Function GetExcelConnection(ByVal Path As String, _
Optional ByVal Headers As Boolean = True) As Connection
Dim strConn As String
[Code]....
Its was used in VB6... do i need to do something special in Visual Studio 2010?
Read Data (read Only) From Excel Files?
May 27, 2011I want to read data (read only) from excel files
I use this connection string
Con_BarCode = New ADODB.Connection
With Con_BarCode
.ConnectionString = "Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm,
[Code].....
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 RepliesDotNET Native Can Use Instead Of One Of These COM Libraries?
Nov 1, 2010I'm looking at a small remoting project in VB.NET. Initial research turns up references to msrdp.ocx which my Windows 7 Ult system doesn't have; a filesystem search on the same platform turns up MsRdpWebAccess.dll which doesn't appear to be well documented; finally hunting through COM references in Visual Studio turns up rdpencom.dll labeled "rdpcomapi 1.0 Type Library" which seems to be best documented via personal developer blogs (which isn't encouraging but is a lot better than other options).
My goal is a lightweight remoting application I can deploy to Windows 2000 Client/Server, WinXP x86/x64, Win2k3 Server, Vista x86/64, and Win2k8 Server.Is there anything DotNET Native I can use instead of one of these COM libraries? Is one of these COM libraries better for the job overall than others; and then am I going to have platform-specific compatibility issues if I don't provide support for more than 1 of them in my app?
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?
IMPORT .xls - Xlsx To Datagridview
Dec 29, 2009i try to import data from EXCEL to DATAGRIDVIEW. Consider in EXCEL i have data;
[Code]...
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]...
Cannot Read From Excel File
Mar 6, 2012I have excel 2007 installed on my laptop. I have vb.net 2010. I have tried a dozen different pieces of same code and I cannot read from an excel file...
Imports Microsoft.Office.Interop.Excel
Public Class Form1
Private Sub Form1_Load( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) _
Handles MyBase.Load
[Code] .....
Warning1Namespace or type specified in the Imports 'Microsoft.Office.Interop.Excel' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.C:UsersksimonsAppDataLocalTemporary ProjectsWindowsApplication3Form1.vb19WindowsApplication3
How To Read From An Excel File
May 1, 2009I am trying to read from an excel file. so far this is what i have:
Public Class testclass
Private wrkbk As Excel.Workbook
Private sht As Excel.Sheets
[code]....
The debugger gets to the "sht = wrkbk.worksheets(1)" line then says its has error: Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND))
Last Row In Excel File Is Not Read Via .NET 2.0?
Jul 28, 2009I have a program that I wrote that uses a system generated excel file from a remote system.
[Code]...
The issue I'm having is when I query the system generated excel file, it is not returning the last row. If I open the file in Excel and then save it, It returns all the rows. Since Windows 2008 64bit does not allow control via Excel to the file, I have to query the file via Jet provider or Odbc provider. I have tried using the Jet provider and the odbc provider.How do I get all the return all the rows with the system generation file?
Read Data From Excel
Mar 26, 2010I have some problem about read excel file in vb.net i want read data in excel. that excel file select from user local drive. so user browse to their local drive and read from that path. after that, bind data to datagrid.
View 5 RepliesRead Excel 1st Sheet Into .NET?
Feb 26, 2008I post a question similar to this a few days ago, but nobody answer. Now I modify my request a little bit, I want to read an excel file using VB.NET program. I know the logic below can do this. The logic is shown below.
But I have a question. This logic needs the worksheet name, but usually my application doesn't have this information, the worksheet name cannot be hardcoding. I have 2 request:Can I always upload the first sheet from the selected excel file. (ACCESS can do this without knowing the worksheet name).
[Code]...
Read Excel Fiels Using Ado.net In .net?
Feb 15, 2010i want to read an excel file using ado.net(if thre is soem other simple way,tht too)I want the code in VB.net
View 2 RepliesCan Not Open Designer Window In Dotnet
Mar 13, 2010When i try to open a designer window of a project in vb dotnet an error occurs, Could not find editor for this vb.Why this error shows. But i can open code window.
View 12 RepliesCode To Convert Xlsx To Csv Using Vbscript?
Apr 15, 2012give me a code to convert xlsx file to csv using vb code?
View 2 RepliesDotnet 4.0 On Thin Client Machine?
Sep 19, 2009I am developing application in VB.Net (dot net framework 4.0) and SQL Server 2008 R2.will it work sucessfully on thin client machine
View 2 Replies