[Tobago] How to change the order of the columns of a sheet?

[Helmut Swaczinna <sw...@wlp-systems.de>]

Hi,

I want to change the order of the columns of a sheet programmaticly before 
the sheet is rendered the first time.
I can't do this in the setter method for the sheet binding because the 
columns don't exist when the setter for the binding is called the first 
time. I dont't want to generate all columns with it's children in my code.

The order of the columns should be stored in the user preferences for each 
user in the database.

Thanks for any help
Regards
Helmut