There is no default way @Alex see https://stackoverflow.com/questions/10286204/the-right-json-date-format

Good day, I created and observableList with extractor, but the changes are not reflected in the TableView, i need to invalidate the list every time, the item is changed. Can it be done without invalidation?

@borboss uploaded a file: Untitled

Yeah, of course this is a mistake

val game = gameProperty.value

should be replaced with

val game: Game get() = gameProperty.value

But still it does not work

Due to requests I updated my TornadoFX-RxKotlin demo application to the latest dependencies. Feel free to suggest ways to further clean up the code and make it more idiomatic via PR's. https://github.com/thomasnield/rxkotlinfx-tornadofx-demo

So I started to use

ListProperty

which is handy when I need to swap an

ObservableList

for another

ObservableList

. I discovered something interesting. If the backing

ObservableList

in a

ListProperty

changes, it seems to signal as a value change. Is this correct?

onCancel

added to `Wizard`: https://github.com/edvin/tornadofx/issues/712

@thomasnield Yes, I believe that's correct. The

ListProperty

emits both item changes and value change for the actual list property.

@thomasnield You were interested by my experience with tornadofx as a non-java, non-javafx person

@bjonnh I've done a lot of java before I discovered Kotlin. I was eager to stop using Java though.

Well I'm happy to not have used Java 😉

I found tornadofx to be really easy to use, the only part I struggled was regarding the properties, binding and setting up communication with my models.

binding reminds me of regular expressions...once you internalize the syntax, you'll start thinking in those terms

hi there, what is the idiomatic way to set the ListView height based on some exact number of rows?

I'm using this:

listview(values = myItems) {
     style {
        prefHeight = 230.px
    }
}

But this is based on on px, and need trial-and-error before I can find the 230.px value in this case.

@hoang There isn't really an easy way to do that, since rows aren't required to be the same height.

Thank you.

I've got another question: I want to have a integer input field, what is the best way to mask input (allow only integer)? I tried: a. Using

textfield()

with `stripNonInteger()`binding to a SimpleStringProperty() b. the same as above but binding to SimpleIntegerProperty()

b

seems to be the way, but every time a invalid input entered into the textbox, a ParseException thrown in console which seems not very nice

a

seems smoother (no exception on every wrong keystroke) but I need to parse to Integer the

prop.value

that's awesome, sorry I forgot to search SO too.

Btw, it's kind of strange to me when

.value

of a SimpleIntegerProperty return a

Number?

instead of

Int?

, probably related to Java?

@hoang what I sometimes do is use RxJavaFX to observe the changes, and switch the value back if anything is invalid.

Yes, it's because under the hood

SimpleIntegerProperty

is a

Property<Number>

The

get

and

set

methods are overridden to use primitives (in JavaFX), but

value

is defined farther up the chain (specifically all the way up in

ObservableValue

).

Thank you.

Also, it's worth noting that a

SimpleIntegerProperty

(or any property that wraps a primitive) will never return null, which is why

SimpleIntegerProperty::get

returns

Int

and not

Int?

.

ah ok, I didn't notice that, one less null check now, thank you.