How to unload a form

Question

in my project i load a form from the mainForm
the form is for listing my data in a textarea
when i close it i just set it to setVisible(false);
but when i load it again it mess up with the records
for example
at the first load
1, data, data,data
2, data, data, data
when i load it again
it shows me
3, data, data,data
4, data, data, data
how can i fix this
thank you
The code i use to load up the form
ListMaps dialog = new ListMaps(mainWindow)

Answer 1

ignoto,
If you've only got two forms then "hiding" (+setVisible(false);+) and "showing" the second form is probably adequate... then the trick is to not to load the form twice... the second time you "show" the form. This is a bit faster (more effecient) than loading the form everytime, especially if it's populating itself with the same data (from a database or file) everytime you display it.
For bigger systems you have to unload the form, because it'd take up too many resources having all your forms loaded at once... so you destroy the form on "close", and load it on "show".
Clear?
Cheers. Keith.