I am trying to retrieve the data from EXCEL 2003 spreadsheet from row 8 onwards because from Row 1 to Row 7 the row is merged columns from A1 to K1, A2 to K2, A3 to K3, A4 to K4, A5 to K5, A6 to K6, A7 to K7.
View 28 RepliesI am trying to retrieve data from Excel Spreadsheet to fill DataGridView for display prior to updating SQL SERVER using DataGridView Row individually.But the coding is not working as this is the first time I done the coding.
this code snippet generate this error message
If objSheet.Cells(excelRow, 0) = "" Then
Endif Exception from HRResult: 0X800A)3EC
[code].....
In my VbNET2008 window application I include a EXCEL Spreadsheet and it generate 2 error messages when I declared the WorkBook and Worksheet.
Here are the error message:
Error 3 Type 'objExcel.Workbook' is not defined.
Error 4 Type 'objExcel.Worksheet' is not defined.
Here are the coding that generated the error messages:Imports Microsoft.Office.Interop.Excel
Dim objExcel As Microsoft.Office.Interop.Excel.Application = CType(CreateObject("Excel.application"),Microsoft.Office.Interop.Excel.Application)
Dim objWorkBook As objExcel.Workbook = CType(objExcel.Workbooks.Add, objExcel.Workbook)
Dim objWorksheet As objExcel.Worksheet = CType(objExcel.Worksheets(1), objExcel.Worksheet)
am trying to store and retrieve data from a closed excel worksheet while in a form created in vba studio express 2008?
View 3 RepliesIm looking into learning OLEdb to run with Excel, Where do i start? has anyone got the full default sample code? and how do i need to set up the Excel test file. Sounds daft but im looking at the system namespace for it and its just looking bafling. What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
View 8 Replieshow can I create an excel file in excel 2003, open it, add workbook, write into it, save it and close it by visual basic 2008.
View 2 Replieshow I can use excel 2003 and excel 2007 on my application. I add a reference to Excel 12.0 Object but this one is not compatible with Excel 2007 and i think if i add Excel 11 Object it will not run on excel 2007.
Is there any solution that I can use so that my project can be used with either excel 2003 and 2007?
I'm having problem when importing data from excel file to data table. the problem is when i debugged and see the items in each row in the data table some data in the column are trimmed, copied from the excel file when uploaded in the data table .
I'm using
Microsoft.Jet.OLEDB.4.0
Extended Properties=Excel 8.0
[Code]...
I'm trying to connect excel sheet with VB 2008 in my project, but it show a error message: A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
[Code]...
Just wondering if i might hit a snag in my program. Ive got 10+ users using the same files, via a Oledb to put info into an excel spreadsheet. If 2 or more people save there file at the same time will the program go into read only on one person. Normally one 3 will use the file at one time. I know Sql itself would be better to use. best way i can describe it, normally using excel if you manage to open the same file twice one opens as normal but the other opens as a Read only file, will the same thing happen if im using Oledb connections?
View 2 RepliesI 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]....
I am trying to read some data from an Excel 8.0 worksheet using OLEDB thusly:(Warning - contains curly braces)
Code:
DbProviderFactory factory = DbProviderFactories.GetFactory("System.Data.OleDb");
using (DbConnection connection = factory.CreateConnection())
{
[code]....
The problem is that for some columns it sets the data type to be Double even though the spreadsheet column format is "Text" and teh column contains non-numeric data. Then when it gets to that cell it returns DBNull instead of the text value.
I have some trouble to export this code which works fine to VB 2008 This code is intented to work with datalogger.
[Code]...
I am trying to retrieve data from Excel spreadsheet and fill DataGridView with it for display prior to updating SQL SERVER Table with DataGridView Row individually. I have not done this coding before and encounter this error message Public member 'WorkbookOpen' on type 'ApplicationClass' not found.[code]...
View 18 RepliesI encounter problem trying to retrieve Data from Excel to fill DataGridView. The BA specification is to open up Excel Spreadsheet to loop though the row and retrieve by row, column and fill DataGridVew.
These lines of coding generated this error message
If objSheet.Cells(excelRow, 0) = "" Then <-- error Exception From HRESULT : 0x800A03EC
bolFlag = False
End If
[Code].....
I have an access databse, but the data is link to excel, so i cant changes the data inside access database. However, i just want to retrieve the data inside the access database using VB datagridview, but the system pop out an error said 'cannot find the input table or query'Is it because the data is link with excel, so access databse cannot direct take the data? Below is my code:
Dim myconnectionstring As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:mydatabase.mdb"
myconnection = New OleDbConnection(myconnectionstring)
[Code]....
I 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 RepliesI have a windows form and I am attempting to create an excel file from a datatable that has already been created and i'm hitting a snag - the error is: The ':' character, hexadecimal value 0x3A, cannot be included in a name."I have a button to start the Export process, here's the
'here's all my imports for the form
Imports DocumentFormat.OpenXml.Packaging
Imports System.Text
[code]....
I have an sql query with sql datareader. i put a for loop for the data reader. now when the data starts coming in from the query i want it to export to excel in the for loophere's my code
Try
Dim SqlStr As String = "", dr As SqlDataReader = Nothing
ConnectDB(Cnn)
[code].....
I need to open an excel file from vb.net and then search it for specific data. I then need to take those data and insert them into text boxes on a form that i have created. This is all controlled by a button click. I already have some code that will open a file dialog box and let me navigate to the correct file, but I am having trouble with the search portion. I have tried the Find function but I am not sure of the proper syntax. I am using Visual Studio 2008 and Excel 2003.
[Code]...
I have a problem with importing an excel into a data grid.
Here is my code:
Try
Dim _Obj As New ExcelConnection.ExcelConnection
_Obj.ImportAttendence("c:Info_pc.xls", DataGrid1)
Catch ex As Exception
End Try
In the excel i have numers and text and "Service Pack", "Processor Speed" and "Numar procesoare(Number of processors)" and the values for these are numers. in the data grid when i import the excel those values doesn't appear, i receive the value "null".
How can we read an excel file without using Oledb?
View 3 RepliesFor my current Project I need to fetch the data from an excel file.Each second the data in the excel file is changing... What I want to do is, copy it from the excel and Validate it in every second.So I use an Oledb connection to get the data from Excel file... s working excellent for two hours... After 2 hours I am getting an error that"the connection for viewing your linked microsoft excel worksheet was lost......"
View 1 RepliesI'm reading in an excel file with the following code:
Function Read_Excel(ByVal sFile As String) As ADODB.Recordset
On Error GoTo fix_err
Dim rs As ADODB.Recordset
rs = New ADODB.Recordset
[code]....
Cells longer than 255 chars are getting truncated, and I'm not sure if there is a way to stop it easily?
Update: The truncation only seems to happen if I select Distinct. If I leave the Distinct off it shows the full cell.
I have always used Excel.interop before but I thought oledb would be simpler because, for this application, I only have to read the data which it can't seem to do. It accesses the file alright because I can't open the file while I am at a breakpoint. It attempts to read the file because oExcelReader.fieldcount = 14 which is correct. oExcelReader.hasrows = true which is not correct. The line where I use getstring(1) errors out and says there is no data for this row/column.
[Code]...
Attempting to execute an update command against an Excel 2007 file gives the error:
Operation must use an updateable query. I'm using System.Data.OleDb with a connection string like this:
Dim strConn As String = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=""" & pathToFile & """;" & _
"Extended Properties=""Excel 12.0;HDR=YES"""
I have tried setting ReadOnly=false but that gives Could not find installable ISAM. I have also tried setting Mode=ReadWrite and IMEX=1 which didn't seem to have any effect. My update command is like this:
Dim cmd As OleDbCommand = con.CreateCommand()
cmd.CommandText = "UPDATE [" + sheetName + "] SET [Quantity Error] = 'test' WHERE [Full Name] = 'Mr. Brown White'"
where sheetName was obtained from querying the excel schema. Is it possible to do what I am trying to?
I have some excel file, where I have to programatically delete all hidden columns.The problem if that, when I receive these files, the cells are mainly formulas, and as I delete some columns I get some "#REF#" problems.
I thought a bit about the problem an decided to create a function that loops throught all cells and replace the value by its own value, before deleting the columns, via OLEDB:
dt.Rows(row)(col) = dt.Rows(row)(col).ToString I don't know if this works. So I followed an update example I found in google, but it doesn't work:
Dim conexao_Excel As String = "Provider=Microsoft.Jet.OleDb.4.0;data source=" & fileName & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1;"""
cn = New OleDbConnection(conexao_Excel)
cn.Open()
da = New OleDbDataAdapter("SELECT * FROM [" & sheetname & "]", cn)
da.Fill(dt)
[Code]...
"Update requires a valid UpdateCommand when passed DataRow collection with modified rows." I image this is pretty basic, but I have already lost so much time on this issues...
Originally I was using Office Interop to import data, but that was a headache and a half for both me and my computer. Right now I'm attempting to load it with ACE, but my data grid isn't being populated. Once that's up and running I need to know how to use that data in other ways, and how to grab specific cells of data from that dataset. I'm using Visual Studio 2008, by the way.
Public Function funcUpdate(ByVal sFileLoc As String) As Boolean
'Determine connection string properties
Dim dbProperty As String
[Code].....
How to write into excel sheet using oledb connection or how to export dataset into excel sheet using oledb connection.
Iam using console application in vb.net. If there are any alternate ways to write into the excel files from dataset.
I work for a somewhat large company.There are about 160 Windows XP Pro users. We are still using Microsoft Office 2000 for the most part.We have upgraded some users to Office 2003. We are not using Microsoft Exchange.I have to export every users' Outlook 2000 or Outlook 2003 Contacts into an Excel or CSV file every 6 months as a way of backing the Outlook Address Contacts.Currently I am doing this by physically going to every pc and manually exporting the contacts.This is a large pain.I am trying to find out if I can use or create a Visual Basic 2008 Express program or script that will export the contacts from Outlook and save it as an Excel or CSV file.The name of the file should be the same as the computers net name.It should be saved in the same location, on the network, each time.I am new to programming and new to VB 2008 Express.I do not know or have any code to start with.
View 8 Replies