i wrote a app for reading excel files.i had to add some references to Microsoft office Com Objects.
it worked good in my system,but when i wanted to use it in other system in which does`t had ms office installed ,
i encounter a problem.i also carried dll files that has been added to project . what should i do ?
In order to use the relevant object libraries you'll have to make sure that Office (Excel in your case) is installed on your client machine. If you have the option I'd suggest to switch to the Open Office XML format anyways. I recently had a similar problem with MS Word and the +work to switch to the new format has def. payed of.
Check MS Open XML SDK
Performace++ and not depending on Office installed...
The Office COM objects depend on Office. You should either arrange for Office to be installed on the other systems, or use a component for reading Excel files that doesn't need Excel installed, such as the ODBC Excel driver or a third-party Excel file reader.
Related
I've built a windows application that retrieves information from an Excel Worksheet. I've tested and had it working on a computer with Microsoft Office Package installed.
I have a little problem now, I will be deploying this program to multiple workstations but they have OpenOffice installed. My issue is, do these workstations need have Microsoft Office installed or would it work regardless?
Thank you all.
If you're referencing the MS Office object library, then they need to have it installed.
Edit: You can probably install Open Office on your machine, write a similar call for that object library, and have it choose based on the installed program(s).
I am writing an application where we need to update an existing Excel sheet through our system. I was able to do so on my local machine with OleDbConnection but when i deploy the application on server it gives me "operation must use an updateable query"
error on Windows server 2012.
I know its not recommended to install MS Office on Server and thats why its causing the issue. Any one has an idea whast the work around for this problem.
Do i have to give permission to my .net application so it can update the excel file or its something else?
Thanks in Advance.
I know its not recommended to install MS Office on Server
Last I checked, it is also a violation of the license terms (though that may have changed)
As you note, there are many reasons it is unwise to deploy Office to a server environment.
If you are using the newer (2007+) .xlsx file format exclusively, you can use the open source EPPlus library for most common Excel tasks. It is free, straightforward to use, and is designed to work on a server.
EPPlus is a .net library that reads and writes Excel 2007/2010 files using the Open Office Xml format (xlsx).
I want to access to office 2003 files (.doc, .xls and .ppt) in order to extract text and some metadata (number of words, number of sheets, pictures, template, etc.). I'm able to do it with Open XML SDK for office 2007 documents. However, this extracton will take place on a server, which can't have apps like Microsoft Office installed (that's the reason why I can't use Office's Interop).
I have tried NPOI, however actually it only supports .xls files. The other libraries that I found are not open-source, I can't use it on my work... I downloaded NPOI Scratchpad but the code is very "raw", I can't use it on my work.
Do you have any other idea to get the text and metadata from office 2003 documents? I'm not a very experienced programmer, and I'm using C# (However, if there is any solution to this problem in C++ I could consider to use it). Thanks.
There are many libraries like:
ClosedXML (Office 2007)
EPPlus (Office 2007)
Aspose cells(Office 97-2010, I use this one)
I don't know any free libraries supporting office 2003 format.
good luck
I am currently writing an application that will perform automation in Excel. I have MS Office (2007) installed on my work computer and the application is working fine referencing the the Microsoft Excel 12.0 Object Lirary.
The target machine has the Office installed but not registered. It is one of those preinstalled editions. Attempting to run the application on the target machine I get an error saying Office is not installed?
I'm assuming then you have to have a registed Office to use the object libraries? Is there anyway around this as I do not have a Office license key lying around and its quite expensive?
See if you can run Excel manually on that machine. If you can do this, you should be able to automate it as well. If you cannot, don't expect to be able to somehow miraculously (and legally) to make it work through automation. Automating Office through its object library is no different than using it through the UI. You need to have a licensed and properly installed copy of Office in order to be able to use it.
Nothing comes for free.
Current licensing guidelines prevent Office applications from being used on a server to service client requests, unless those clients themselves have licensed copies of Office
What are you trying to automate/achieve? Don't you think OpenOffice would be of any use?
I have been using Office 2007 PIA's to run PowerPoint files in my C# application.
I know that this requires Office 2007 to be installed on the machine.
I wanted to know, can the same set up be run with OpenOffice.org installed instead of Microsoft Office?
Note: I am using a Qindows machine.
While OpenOffice does have an Automation Bridge which allows you to access OpenOffice applications in Automation (a proper subset of COM which in turn you can access through COM Interop), the API profile is most definitely not the same.
That being said, any code that you write which uses the Office 2007 PIAs will not be compatable with the Automation model provided by OpenOffice.
Granted, you can probably do many of the same things that you could do in Office, it's just the way you would go about doing them (the methods you call) would be completely different.
In a word, No.
The PIAs contain mapping information specific to the DLL that they wrap, in your case MS Office application DLLs.