It has been well over a year since I looked at this, but I also remember seeing memory issues when trying to create the Excel file via various cffunction calls. I had a process that created Excel files using POI functions that worked fine, and I wanted to make it more maintainable by dividing common routines up into functions. When I did this I believe I kept getting memory errors, which instead of trying to troubleshoot, I just reverted to the working code sans functions since I was under a deadline.
You can apply styles to cells using POI, although it not as easy as creating HTML tables with CSS classes. I believe my hacking though POI was before Ben Nadel's POIUtility existed, since I don't remember having the benefit of a pre-built code library. -Mike Chabot On 10/12/07, Rick Root <[EMAIL PROTECTED]> wrote: > Oh dear. > > I just attempted to use Ben Nadel's POUtility.cfc to create my excel > spreadsheet. > > Couple of problems. > > #1 - it took 141 seconds instead of 45 seconds. 3x longer. > #2 - it used almost 500 MB of RAM. 2x more. > #3 - it had less functionality - my method of producing the file as > HTML tables gave me column specific CSS control over each cell. > > Advantages: > > #1 - file size, 27MB versus 84MB > #2 - no warning for Office 2007 users > > > Back at CFUNITED, I asked the Coldfusion product manager if they had > any intention of improving the speed of string concatenation. I told > him that I was doing a lot of string concatenation to manufacture > excel files via HTML tables. He basically blew me off, saying I > should be using POI for that. (If you're reading this, yes, I felt > like you blew me off). > > Now, this might not be POI's problem.... maybe it has something to do > with the POIUtility.cfc, but my initial results don't look good. :( > > -- > Rick Root > Check out CFMBB, BlogCFM, ImageCFC, ImapCFC, CFFM, and more at > www.opensourcecf.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Create robust enterprise, web RIAs. Upgrade to ColdFusion 8 and integrate with Adobe Flex http://www.adobe.com/products/coldfusion/flex2/?sdid=RVJP Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:290992 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
