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#1
Posted to microsoft.public.excel.programming,microsoft.public.excel.interopoledde
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How Many Simultaneous Users Can Be Safely Handled?
My boss wants me to write a program which runs at login time on our
Novell network using Windows 95, NT4, 2000 and XP workstations. We have a mixture of Office 97 and Office 2000. The program will save information about the user into a network Excel spreadsheet (by supplying data to a built-in macro in the sheet) and then exit. Estimated run time for the program is a few seconds (including the time it takes to start up Excel in the background, save the information and then close it down). The aspect that most concerns me is the possibility of 'overloading' the sheet with too many users. Assuming the worst possible scenario there could be up to a couple of hundred users logging in at the same time (but not *exactly* at the same time, of course). My question is whether or not I am liable to run into problems with this scenario. Will Excel be capable of handling this situation? If not is there any way in which I could trap any errors arising from simultaneous access by too many users? I am using the Delphi programming language but code snippets using any other language would be welcome. Thanks a lot in advance to anyone who can help. ------------------------------------------------ Please do NOT reply by email as the address is a fake. Please use the newsgroup only. ------------------------------------------------ |
#2
Posted to microsoft.public.excel.programming,microsoft.public.excel.interopoledde
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How Many Simultaneous Users Can Be Safely Handled?
Can you log to text files and updatete the spreadsheet once a day or every
hour? Jens. -- http://ManagedXLL.net/ | http://jens-thiel.de/ | http://QuantLib.net/ Replace MSDN with my first name when replying to my email address! "Alan Greenwood" wrote in message ... My boss wants me to write a program which runs at login time on our Novell network using Windows 95, NT4, 2000 and XP workstations. We have a mixture of Office 97 and Office 2000. The program will save information about the user into a network Excel spreadsheet (by supplying data to a built-in macro in the sheet) and then exit. Estimated run time for the program is a few seconds (including the time it takes to start up Excel in the background, save the information and then close it down). The aspect that most concerns me is the possibility of 'overloading' the sheet with too many users. Assuming the worst possible scenario there could be up to a couple of hundred users logging in at the same time (but not *exactly* at the same time, of course). My question is whether or not I am liable to run into problems with this scenario. Will Excel be capable of handling this situation? If not is there any way in which I could trap any errors arising from simultaneous access by too many users? I am using the Delphi programming language but code snippets using any other language would be welcome. Thanks a lot in advance to anyone who can help. ------------------------------------------------ Please do NOT reply by email as the address is a fake. Please use the newsgroup only. ------------------------------------------------ |
#3
Posted to microsoft.public.excel.programming,microsoft.public.excel.interopoledde
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How Many Simultaneous Users Can Be Safely Handled?
Or use a database file?
To answer your question directly, the most simultaneous users that can be reliably handles in a shared workbook is at most 1, and sometimes that's not done really well, because of the functionality that you give up to share a workbook. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Jens Thiel wrote: Can you log to text files and updatete the spreadsheet once a day or every hour? Jens. |
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