no, use val f = find<MyFragment>()

# tornadofx

[carlw]

no, use val f = find<MyFragment>()

[Shan]

Thank you for the info Carl! A few questions, if you aren't too busy and don't mind. Could you explain the difference between doing it with find and just instantiating it like I was doing before? And also I am getting an error when trying to use find with my new code:

fun createChannelFragment(c: SystemInput, group: Group?): Node {
        val inputFragment = find<InputFragment>(c, group)
        inputFragment.root.add(WorkspaceGraph(inputFragment).root)
        return inputFragment.root
    }

[Shan]

It says I can't call any of the functions with the arguments supplied 😞

[Shan]

I'm definitely doing something wrong while trying to pass these values into the constructor

[hudsonb]

You cant pass them in the constructor; instead set them on the fragment once found

[hudsonb]

inject a ViewModel in the Fragment

[hudsonb]

Or you can pass them to InputFragment like so:

find<InputFragment>(mapOf(InputFragment::systemInput to c, InputFragment::group to group))

Assuming InputFragment has properties named systemInput and group.

[Shan]

Hmm. Mapping the properties that way is giving me a new error.

Feb 28, 2019 3:06:40 AM tornadofx.DefaultErrorHandler uncaughtException
SEVERE: Uncaught error
java.lang.InstantiationException: org.tenkiv.labrat.components.fragments.InputFragment
	at java.lang.Class.newInstance(Class.java:427)
	at tornadofx.FXKt.find(FX.kt:451)

[Shan]

val inputFragment = find<InputFragment>(params = mapOf(InputFragment::input to c, InputFragment::group to group))

what I changed it to

[Shan]

class InputFragment(val input: SystemInput, val group: Group?) : Fragment() that is the InputFragment