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javajavafxfxml

Is it possible to use arithmetic expression in FXML?

I hoped for a feature that would allow me to work with numbers inside the FXML. For example, tried to define the height of one element to be equal to a constant and the height of the second element to be equal to the same constant multiplied by 2 (i.e. constant * 2). Is it possible to do it in FXML at all or do I need to do this part of view build-up inside the controller (which I would like to avoid)?

Solution

  • Yes, it is possible:

    <?import java.lang.Double?>

...

<fx:define>
    <Double fx:id="xHeight" fx:value="100" />
</fx:define>

...

<Label fx:id="lblElementOne" prefHeight="$xHeight" />
<Label fx:id="lblElementTwo" prefHeight="${xHeight * 2}" />