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Oundroni
Asked: 2020-03-25 07:32:18 +0800 CST 2020-03-25 07:32:18 +0800 CST

Access the content of a TitledPane in JavaFX

  • 772

I want to access all the nodes that are contained in a TitledPanefor which I do a loop:

for ( Node panel :  panelTitulado.getChildren()){                  
             System.out.println ("Nodo: " + panel.toString());                      
         }

This procedure works for containers like VBox but not TitledPanebecause the property does not exist getChildren(). Is there a property that allows access to the content to know all the nodes inside?

javafx

2 Answers

  1. Best Answer

    You should use getContent(), for example:

    for ( Node panel :  panelTitulado.getContent()){                  
             System.out.println ("Nodo: " + panel.toString());                      
    }

    It is important to cast the type of container that is regularly AnchorPane:

    for ( Node panel:  ((AnchorPane) panelTitulado.getContent()).getChildren()){
            System.out.println ("Nodo: " + panel.toString());
            System.out.println ("Nodo Id : " + panel.getId().toString());
        }

    In this way you can obtain the information of the nodes contained within theTitledPane

    Nodo: Main$3[id=id1]
Nodo id: id1
Nodo: Main$4[id=id2]
Nodo id: id2
Nodo: Main$5[id=id3]
Nodo id: id3
Nodo: Main$6[id=id4]
Nodo id: id4
    • 1

  2. If you want to access all the nodes of a TitledPane, you must first get the contents of it, then perform a get to castingthe Nodespecific type of layoutset and invoke on it getChildren.

    Suppose we have created the content of our TitlePanelike this:

    TitledPane panelTitulado = new TitledPane();

AnchorPane miLayout = new AnchorPane();
miLayout.getChildren().add(miNodo1);
miLayout.getChildren().add(miNodo2);
myLayout.getChildren().add(miNodon);

panelTitulado.setContent(myLayout);

    Now, the reverse process would be:

    AnchorPane myLayout = (AnchorPane) panelTitulado.getContent();
myLayout.getChildren().forEach((Node panel) -> {
    System.out.println ("Nodo: " + panel.toString());
});

    Note that to get the nodes of myLayout I use the forEach method together with a lambda expression enabled as of java version 8.

    • 0