Check out the newer (but not the latest) version of Idubee spreadsheet application. While in editor, press CTRL+M to generate a column of 1000000 cells. As you’d see, perfomance of the component is not affected – it has constant rendering time regardless the amount of data.
patrick LACROIX says: hello,
I found your tool very nice. I need a tool like this to include in backoffice website.
Is your tool free ?
have you a licence for using it ?
Data are stored in Mysql database.
We need only simple function like copy, paste, insert line, copy down, and save …
Regards
Chuck says: Yes……you are a true tease 
Nice styling and behavior!
Chuck
PS) I hope it decomplies nicely
| Idubee Flex Spreadsheet | Two directional FlowBox component, open sourced |