Converting An Excel File To .net?
Jun 28, 2009I have a small but complicated excel file I need to convert to vb.net...
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Converting File Into Bytes And Then Converting Those Files Back Into Its Original Form?
Aug 22, 2011my goal is to
1.Take an file(exe,dll,etc)
2.Convert it into hex
3.place that hex values in a stack
4.Execute the values inside the stack to its original form(i.e. take the elements out of stack and then convert it to a compile format)
Imports System.IO
Sub Main()
Dim fileName As String = "ABC.exe"
[code]....
Converting Excel Spreadsheet To .exe?
Jul 3, 2012am doing a application on excel spreadsheet converting to .exe
View 4 RepliesC# - Converting Into Integer In Excel Using EPPlus (asp.net)?
Jun 18, 2012I am loading data into excel from datatable using LoadFromDataTable method then changed cell format to integer still it is showing error "The number in this cell is formatted as text or preceded by apostrophe". cell was showing to right side only and number format only on cell property.still I am not understanding why I am getting this error??.
Dim wsManufacturing As ExcelWorksheet = pck.Workbook.Worksheets.Add("Manufacturing")
wsManufacturing.Cells("A1").LoadFromDataTable(dtManufacturing, True)
Using col As ExcelRange = wsManufacturing.Cells(2, 2, 2 + dtManufacturing.Rows.Count, 2)
[code]....
Converting Excel Data To Access?
Oct 15, 2009Need to VB(QTP) Script code for converting an Excel sheet to an access database table. Is there any way to import the selected columns to in to the access database.
View 2 RepliesConverting Excel To CSV - Semicolon Separation
Jul 9, 2011I have written a VBA (Excel macro) to open a workbook, and save it as a semicolon .CSV file, and then close it self. Excel on the server at work has a nasty tendency to start in safe mode (or at least ask if it should start in safe mode), making my Open-And-Shut macro fail. Now I've rewritten the program into VB.NET code (vs2008), but it creates a true .CSV (comma separated value), and I need semicolon. The excel file contains "last name, first name" making comma separation useless. Also making it impossible to substitute "," with ";" [Code]
View 3 RepliesExport To Excel Converting String To Date?
Mar 23, 2012I am pulling two fields and putting them together with a "-". When I export to excel it seems to think that the string is a date and converts it from 11-11 to 11-Nov. I can't seem to figure out how to fix this.I am exporting a gridview into excel. This asp.net using .net 3.5 and vb.net within VS 2008.
Response.Clear()
Response.Buffer = True
'grab filename from filename box
[code].....
Converting From VB6 - Reading Excel Range Into Variant Array
Oct 18, 2011In VB6 I could assign an Excel range directly to a variant array dim vArr as variant vArr = xlSheet.range("A2:A10").value and then work with vArr to pull out the values I needed. This doesn't work in VB 2010. Is there a replacement procedure to allow me to read in a range (perhaps large) all at once and then process the data without needing Excel?
[Code]...
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
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'.
Converting Delimited Text File To Access File?
Jul 29, 2009I've got a problem in Importing Text delimited File to access Db , I always get an error "No value given for one or more required parameters' while execution [Select Into] Statement
[LEFT]
Dim svdialog As New SaveFileDialog
svdialog.Filter = "Access Database Files (*.mdb)|*.mdb"
[Code]....
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.
Display Excel File (even If Excel Is Not Installed) Library? Method?
Mar 5, 2012I have a project that has a need to display a Excel file in second window, but because other controls are needed, simply launching excel is not sufficient. Right now I do not know if the target machines have excel installed but I know with certainty that if they do it would be 2010, is there any method or library that allows you frame your own form around an excel window?
View 1 RepliesOpen Excel File And Reusing Existing Excel Instance?
Jul 13, 2010I have an application the contains several excel files bundled with it. I'm not opening the files and processing them within my application. These files contain a data-connection to reload all of the pivot-tables within each excel file. I have a 'link' on my form, that when clicked, it determines which file to open and calls a sub using filename and executing Process.Start(filename) for any excel file I want to open. I have no problems opening any one of the files and then exiting excel.
The problem is when I 'close' a file, but don't exit Excel; then try to open another file(clicking link on form)... it creates a new instance of Excel.
I know from experimenting that the fileopendialog form will 'reuse' an existing Excel instance, IF it does not already have a file open.
How can I do the same thing without using the fileopendialog?
I don't want the end-user to have access to the folders where these files live. That's why I have multiple 'links' on my form, one for each xls that already exists. I just want them to be able to click on a link and the xls file opens AND if they choose to merely 'close' a file and not exit... Don't create a new instance of Excel, but re-use the existing one.
Took Oledbconnection With Excel File But Unable To Open That Excel Manually?
Mar 10, 2009I took oledbconnection with excel file, after disposing this connection i m still unable to open that excel manually,It shows some access error.
View 1 RepliesVS 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]....
Excel Interop: System.Runtime.InteropServices.COMException (0x800A03EC): Microsoft Office Excel Cannot Access The File
Feb 25, 2010I need to create an excel file from the database records. I fetched and put the data in an excel file and tried to save that file as follows.
[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?
Export An Image Into An Excel File Without Excel Installed?
Oct 7, 2011I need to export Chart(image) and grid (tabular) row data into excel file. I can not use automation because Office tools are not installed in my server. I've found a bunch of free/proprietary tools like:
NPOI
MyXLS
ExcelWriter (softartisans)
JetCell (DevTrio)
Aspose.Cells (Aspose)
But I do not know which one is better for my needs. I need to export not only grid row data but also Chart (image), thats why I am thinking about.
Insert Macro Into A Excel File Without Using The Excel Com Library?
Aug 30, 2010Is there any way to insert an existing macro into a existing excel file without using the excel library ? I need this to set the excel to print whole work book .I cannot use excel library because it will be done online in the server where installation of excel is not possible. I can however use the c#.net coding . I am using NPOI to generate the excel.
the macro is given below
Private Sub Workbook_BeforePrint(Cancel As Boolean)
If printed = False Then
Cancel = True
[Code]....
Print Excel File Form Without Opening Excel?
Jul 4, 2005How to print excel file form vb .net without opening excel?
View 9 RepliesSave An Excel File After Opening Excel Application?
Jan 28, 2010i'm trying to save an excel file after I open my excel application. This is what I have so far:
'Opens the report
xlPeakDemand.Visible = True
xlPeakDemandWorkbook.SaveAs("C:Documents and
[Code].....
When saving as an xls it works fine but when saving as a htm its a disaster Just a bunch or symbols and stuff. BUT if I go into my xls document and Save As webpage from there, it works fine!
Create An Excel File In Excel 2003?
Jun 24, 2009how 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 RepliesCreate An Excel File Without Excel Installed?
Feb 12, 2009Is there a way in VB .NET to create an Excel file without having Excel installed?
View 7 RepliesExcel OleDb - Set Up The Excel Test File?
Sep 24, 2010Im 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 RepliesConverting .exe File To Run On Mac?
Nov 14, 2010I made a program a couple of months ago and decided to put it up for sale for a minimal about of basicly just to cover costs. Seems word got round and people from all sorts of places are asking if I can modify program and add features which I have done and was happy to do. I have around 57 requests in my E-Mail at the moment asking me to make a Mac version and from what I can tell, all the proccess involves is converting the .exe file to a file which can be run on the mac. Before someone offering there good faith to test it for me. I'm sorry but that won't be an option for me.Would like to run a Virtual Machine, but that would be against copy right laws. Is there any other way to test it except buying a Mac?
View 2 RepliesConverting EDI X12 Format To XML File?
Jun 11, 2009converting EDI X12 format to XML file .
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