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javafxscalafx

Get text values from HBox

Say I have an HBox like this: 

val texts = new HBox {
  content = Seq(new TextArea, new TextArea)
}

Now I'd like to get TextAreas' text values in a collection. How can I get to these TextAreas? texts.content is an ObservableList[javafx.scene.Node], not ObservableList[TextArea].

I've tried type casting like this: 

texts.content.get(0).asInstanceOf[TextArea].getText

And gott the following exception: java.lang.ClassCastException: javafx.scene.control.TextArea cannot be cast to scalafx.scene.control.TextArea

Solution

  • You can type cast the elements while fetching them, for example:

    TextArea txt1 = (TextArea)observableList.get(0);
TextArea txt2 = (TextArea)observableList.get(1);

    Or, if you have multiple TextArea

    for(Node node: observableList){
   TextArea txt = (TextArea)node;
   //Do something with the txtArea
}