CODEWITHSUNDEEP
javajavafxjavafx-2javafx-8fxml
user1406186
user1406186

Reputation: 1002

FXML how to set choicebox default value

I've attempted to set the default selected item of my choicebox, however it isn't working as intended...

<ChoiceBox fx:id="d" value="- Select choice -">
    <String fx:value="hellow"/>
</ChoiceBox>

Upvotes: 1

Views: 29003

Answers (4)

Karl Huffaker
Karl Huffaker

Reputation: 11

This question was asked many years ago but I didn't like the answers given. I was recently having the same issue and I finally realized what the problem was. Take this for example:

<ChoiceBox fx:id="cb_DBEditors" layoutX="148.0" layoutY="192.0" prefHeight="25.0" prefWidth="124.0" value="Testing">
   <items>
        <FXCollections fx:factory="observableArrayList">
             <String fx:value="SQL Plus" />
             <String fx:value="Something Else" />
        </FXCollections>
   </items>
</ChoiceBox>

The value you have in the default value="" must equal one of the fx:value strings. If it isn't then the ChoiceBox will be blank. To recap, the default value you set must be one of the fx:value in your <items> list.

<ChoiceBox fx:id="cb_DBEditors" layoutX="148.0" layoutY="192.0" prefHeight="25.0" prefWidth="124.0" value="SQL Plus">
   <items>
        <FXCollections fx:factory="observableArrayList">
             <String fx:value="SQL Plus" />
             <String fx:value="Something Else" />
        </FXCollections>
   </items>
</ChoiceBox>

Upvotes: 1

Vivek
Vivek

Reputation: 1

When we use 'value' then it will set default value for your choice box or even you can display any short message for your choice box:

<ChoiceBox value="- Select choice -">
<items>
<FXCollections fx:factory="observableArrayList">
<String fx:value="first choice"></String>
</FXCollections>
</items>*emphasized text*
</ChoiceBox>

Upvotes: 0

Ferin Patel
Ferin Patel

Reputation: 107

You can use .setValue(""); for setting the default value.. point to note the valuename should be present in observablearray("","","")

Example

@fxml
private ChoiceBox choiceId; // this is fxml choicebox Id name given in fxml file

ObservableList<String> options = FXCollections.observableArrayList("valuename1","valuename2");

choiceId.setValue("valuename1"); // this statement shows default value 

choiceId.setItems(options); // this statement adds all values in choiceBox

Upvotes: 5

Naoghuman
Naoghuman

Reputation: 80

This answer is answered in the question JavaFX & FXML: how do I set the default selected item in a ChoiceBox in FXML?

For example when you want to select the second value as default value you can do following in your FXML file:

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.collections.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="choicebox.defaultselection.FXMLDocumentController">
    <children>
        <ChoiceBox layoutX="16.0" layoutY="52.0" prefWidth="150.0" value="5 minutes">
            <items>
                <FXCollections fx:factory="observableArrayList">
                    <String fx:value="2 minutes" />
                    <String fx:value="5 minutes" />
                    <String fx:value="15 minutes" />
                </FXCollections>
            </items>
        </ChoiceBox>
    </children>
</AnchorPane>

Upvotes: 5

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