I'm trying to create a TabPane which is driven by ...

# tornadofx

[melatonina]

I'm trying to create a TabPane which is driven by an observable list. It manages a view for each item in the list. Should I create it as a subclass of TabPane? as a Fragment? How do you create custom panes in tornadofx?

[Marshall]

you mean the tabs are driven by an observable list?

[melatonina]

Yes, I implemented it as a fragment. That is not the problem.
But I feel I should be able to use it as another pane, instead. I was wondering how to do that. Usually, in other GUI frameworks, that's very simple.

[Marshall]

the tabpane has an observable list of tabs that you can bind to

[Marshall]

val myTabs = mutableListOf<Tab>().asObservable()
tabpane {
    Bindings.bindContent(tabs, myTabs)
}

[Marshall]

any time "myTabs" change, the tabpane will be updated to relfect what's in "myTabs"

[Marshall]

if you have an observable list of something else that you want to create tabs from, you can do that too

[Marshall]

val tabNames = mutableListOf<String>().asObservable()
        tabpane {
            tabs.bind(tabNames) {
                Tab(it)
            }
        }

[Marshall]

there are a number of options with bindings

[Marshall]

bindings are very powerful but can be tricky

[melatonina]

Thanks, Marshall! That is very useful. I was duplicating that mechanism.

[Marshall]

no problem