the problem i need to solve is to copare sales for periods that are defined by custom dates. For exampe, a user chooses a year of 2005 and monthes of May, April, March, then, he wants to copare them with the following data(which he can choose from another ListBoxes?) a year of 2008 and monthes of December, January, February. The bad thing is that when you choose a year of 2005 from a ListBox1(which uses field, for example "Year"), and if you have another ListBox2(which uses field, for example "Year2"), QlickView unselectes the year from ListBox1.
So guys, do you have any idea on how to implement this?