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Java

Posted by Benjamin Keller
Benjamin Keller
20,763 Points

"Exception in Application start method"-error in loading fxml Button nodes.

I get an error in my main.java loading this line:

Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));

Through commenting them out and having it work, I have traved the issue to my Button nodes, but I can't figure out why.

An example of one of my buttons:

<Button GridPane.rowIndex="1" GridPane.columnIndex="2" OnAction="#handleBuyBlue" text="Buy"/>

Here is my full fxml document. I have four buttons total: they're currently commented out.

<?import javafx.geometry.Insets?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.text.Text?>



<GridPane fx:controller="sample.Controller"
          xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10">
    <Text text="Trim the Hedge" styleClass="title" GridPane.rowIndex="0" GridPane.columnSpan="2" GridPane.halignment="CENTER"/>
    <Text text="Profit Margin" GridPane.rowIndex="1" GridPane.columnIndex="0"/>
    <Label text="0" GridPane.rowIndex="1" GridPane.columnIndex="1"/>
    <!--<Button GridPane.rowIndex="1" GridPane.columnIndex="2" OnAction="#handleBuyBlue" text="Buy"/>-->
    <Text text="Total Employees" GridPane.rowIndex="2" GridPane.columnIndex="0"/>
    <Label text="F" GridPane.rowIndex="2" GridPane.columnIndex="1"/>

    <Text text="FT Employees w/ Benefits" GridPane.rowIndex="3" GridPane.columnIndex="0"/>
    <Label text="0" GridPane.rowIndex="3" GridPane.columnIndex="1"/>
    <!--<Button GridPane.rowIndex="2" GridPane.columnIndex="2" OnAction="#handleFireOneFTBlue" text="fire 1 FT"/>-->

    <Text text="PT Employees" GridPane.rowIndex="4" GridPane.columnIndex="0"/>
    <Label text="0" GridPane.rowIndex="4" GridPane.columnIndex="1"/>
    <!--<Button GridPane.rowIndex="4" GridPane.columnIndex="2" OnAction="#handleFireOnePTBlue" text="fire 1 PT"/>-->

    <Text text="Sub-contracted employed" GridPane.rowIndex="5" GridPane.columnIndex="0"/>
    <Label text="0" GridPane.rowIndex="5" GridPane.columnIndex="1"/>
    <!--<Button GridPane.rowIndex="4" GridPane.columnIndex="2" OnAction="#handleFireOneSCBlue" text="fire 1 SC"/>-->

    <Text text="Lives Ruined" GridPane.rowIndex="6" GridPane.columnIndex="0"/>
    <Label text="F" GridPane.rowIndex="6" GridPane.columnIndex="1"/>



</GridPane>

1 Answer

Benjamin Keller
Benjamin Keller
20,763 Points
Benjamin Keller
Benjamin Keller
20,763 Points

I realized the problem was a camelCase error. It's "onAction" instead of "OnAction."

<Button GridPane.rowIndex="1" GridPane.columnIndex="2" onAction="#handleBuyBlue" text="Buy"/>