Using Microsoft.Office.Interop.Excel Without Actually Having Excel?
May 1, 2011
I'm using Microsoft.Office.Interop.Excel in VB.Net in order to export an .xls file as a .pdf file. This was the only method I could find without relying on third party software to be installed on the running machine or using an expensive add-on to Visual Studio. This method requires opening excel and saving a file through the code.
My problem is that I only have a trial version of Microsoft office as I never actually use it. Well the limitation of times I can open it is up as I have run the program enough times for debugging purposes and now I can't continue development on this application. Is there a development kit for visual studio that provides the API I need for this functionality without actually having Office installed? I don't need Microsoft Office so I don't want to have to buy a full version just to develop and test an application.
I've looked at some options like this, but there is very specific formatting that needs to remain intact in the .xls for the conversion to .pdf that doesn't seem to work if I use an intermediary format. I've also read a little bit about the openOffice API, but is that compatible with .Net? If so, can someone point me to a tutorial that explains how to use the API with .Net? Specifically VB if possible, but I can work with C# code.
I have been doing a lot of reading on this topic and most folks seem to agree that having Excel is required to use the COM Interop libraries. However they are never specific as to where that should be installed. Does it need to be installed on the machine I am developing on or does it need to be on every machine that I deploy to?
Edit: I should mention that this is desktop development/deployment targeted for all Windows machines.
Basically I've coded an Excel 2007 project in VB.NET 2010 that allows you to create charts with a fair amount of interactivity. I want the user to be able to save and reopen this workbook and still have that interactivity in any already-created charts, so they don't have to re-create them.
When I create the charts, I use Sheet1.Controls.AddChart(...), which returns a Microsoft.Office.Tools.Excel.Chart with which I can handle events and such. However, when I reopen the file and look through the Sheet1.Controls collection, there are no Chart objects. Accessing the charts through Sheet1.ChartObjects.Chart gives me Interop Charts, when I need the Tools Charts.
have a Visual Basic 2008 project with references to Microsoft.Office.Interop.Excel and Microsoft.Office.Interop.Access for Office 12/Office 2007. I also have Office 2007 installed on my PC. I tried running my program on a PC which has Office 2003installed (i installed the compatibility pack to open .xlsx files) and the Access Database Engine for .accdb Databases.It does not have VS2008 installed but has .Net Framework 3.5 SP1 installed.
how can i get Excel Worksheet title from an excel process already running on user machine using Microsoft.Office.Interop.Excel.
Actually, I have to implement this in windows service and Process.GetMainWindow title is not working with VB.Net service thats why i am looking for some solution thru Microsoft.Office.Interop.Excel.
I'm wondering if you can use the Microsoft.Office.Interop.Excel in a windows service application type.
I've a windows form application which opens an Excel file and do some actions and save it as another file. All this is working perfect in windows forms. When I copy the same code and paste it in a windows service, then it is not possible to open the file even.
I have code that will plus Row but need help with pluse column.Full code snippets:
Imports Microsoft.Office.Interop Public Class Form1 Private Sub ButtonTab_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonTab.Click Dim MyExcel As New Excel.Application
I added: import microsoft.office.interop.excel and I suddenly got this error:" 'checkedchanged'is not an event of 'microsoft.office.interop.excel.checkbox'"
for each cb2 as checkbox in thechecks addhandler cb2.checkedchanged,addressof checkpress next
it erroreed on the cb2.checkedchanged part and this code has worked before. however once I add the import it errors. what namespace am I supposed to put it under?
I use:Imports Microsoft.Office.Interop as well as a Reference from the "COM" tab called "Microsoft Excel 11.0 Object Library"
I built my program then copied the .exe from the inDebug folder to a location on my company's server. I then double clicked the .exe and it ran as I expected it would.My boss then tried (from another computer) and he gets this error:See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
I am using the Microsoft.Office.Interop.Excel library in VB.Net on an excel sheet that is protected. All of the protected settings are working fine except that I cannot set Select Locked Cells which shows when you are using the Excel protect sheet interface but I cannot see how to set this to false using the library. I have tried all of the different values in the protect method but none of them toggle the value.Excel protected sheet menu Below is the code snippet I am using to get my workSheet, populate some values, and then protect the sheet. GetWorkSheet is an internal method which will return a WorkSheet object, and invoiceData is a datatable which has the data which is being added to the spreadsheet.
Dim newSheet As Worksheet = getWorkSheet(newSheetName) ' Make the current Work Sheet active so that it will be accepting the data. newSheet.Activate() newSheet.Unprotect(sheetPassword)
I have Visual Studio 2010 and a VB Project that had a reference to Microsoft.Interop.Excel 12.0. Well recently I changed the reference version to 14.0. That was actually a mistake and now I need to bump it back down to version 12.0. However I get this error in my project now...
Project 'MyProject' requires a reference to version '14.0.0.0' of assembly 'Microsoft.Office.Interop.Excel', but references version '12.0.0.0' of assembly 'Microsoft.Office.Interop.Excel'.
I tried removing references and adding the com object to, but no avail.
I have a project which opens a simple Excel file and populates it. It was working fine until this morning, when it has suddenly started giving me the error above: 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.I haven't changed any project references, or anything within the file itself. The references include Microsoft.Office.Interop.Excel. The imports statement is there: importsMicrosoft.Office.InteropThe object declaration is also complete: Dim xl AsMicrosoft.Office.Interop.Excel.Application which is the line that's giving me the error!
I'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'.
I just want to ask whether I can automate Excel without microsoft office excel installed on machine, I tried but it failed to do automation, does anybody know how to do it without excel installed on machine?
So I'm guessing it has something to do with the fact that I don't have office loaded on my computer. Now I have another laptop, with office that I loaded this project on, and it works fine. So do I have to load office on this computer, or can I just reference something?
I am writing a function to export data to Excel using the Office Interop in VB .NET. I am currently writing the cells directly using the Excel worksheet's Cells() method:
Assume all traces of Office 2003 will be removed from the computer.I understand that I will still be able to use .xls files. I'm asking about automating Excel through the COM interop from outside Excel. When I add a reference to Excel to a VB project, it gives me a different version of the dll for different versions of Excel. If a program was compiled with a reference to Office 2003's dll, will it need to be recompiled for Office 2007? Will the code need to be updated to use the new dll?
I have create Office Excel application in my machine(XP). and i have placed the application in windows server 2008 giving the following error.
Microsoft Office Excel cannot access the file 'serverInput.xls'. 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.
both client and server systems installed office 2007 and added reference microsoftexcellibrary 12.0
created assembly for the application and calling the code from the form.
I need to export the contents of DataGridView into an Excel file. There is lot of discussion which I went thru and leaves me more confused now than before. I am using VS 2010 Express with Office 2007.
In the VB project reference components, I looked for Office components and did not find it there.
I have a software that writes data to Excel sheet. I'm using Microsoft Excel 11.0 Object Library for this. Everything is working fine so far, but apparently the drivers require Microsoft Office installed onto the computer.
Is there a way to write data to Excel format without having Microsoft Office installed?
I 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
I want to encapsulate the use of Excel Interop to make it easier to use somehow in a reuseable library.So far, I have written some tests that work good altogether, except that between each test, I force Excel to quite so that it does have handle on the test file no more in order to be able to delete.Once I quit the application instance between after each of my tests, Excel seems to be no longer responding, causing Windows to display "Excel has stopped working and is looking for a solution"
message. This message lasts a few seconds, meanwhile Excel is closing, causing the hang on the file to occur and my tests to throw an exception like "Cannot access file because it is being used by another process..."
I have been using Excel in vb.net for years and no problem but I have a new app and nothing is working. First I can't get Microsoft.office.interop referenced anywhere, which was weird. Then I can't instantiate Excel App.. Dim pExcel_App as New Excel.Application -- this gives me error "New cannot be used on an interface??But I can do this..Dim pExcel_App As New Excel._ExcelApplication -- where did this come from?Then I can't put anything into cells Dim wkbSheet As Excel.Worksheet wkbSheet.Cells(1,1) = "Title" --- this give me an error "Expression is a value and therefore cannot be the target of an assignment"
THe really weird thing is that I have an old app open at the same time that is just fine with all this code. AND the intellisense is different for each cell.The good one sets is as a range, the bad one says it is an object???I re-installed the MS PIA's but this didn't help.