Question

我在使用FXML文件构建JavaFX项目时遇到了问题（手动编写，而不是在SceneBuilder中生成）。以下是FXML文件。这是根据http://docs.oracle.com/javafx/2/get_started/fxml_tutorial.htm中的FXML指令编写的。它产生的实际错误是Caused by: javafx.fxml.LoadException: javafx.scene.layout.GridPane does not have a default property.我们非常感谢任何帮助。提前谢谢。

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

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

<Scene width = "550" 
    fx:controller = "fxmltableview.FXMLTableViewController"
    xmlns:fx = "http://javafx.com/fxml">

    <GridPane alignment = "center" hgap = "10" vgap = "10">
        <padding> <Insets top = "10" right = "10" bottom = "10" left = "10"/> </padding>
        <Label text = "Address Book" GridPane.columnIndex = "0" GridPane.rowIndex = "0" style = "-fx-font: NORMAL 20 Tahoma;"/>
        <TableView fx:id = "tableView" GridPane.columnIndex = "0" GridPane.rowIndex = "1">
            <columns> <TableColumn text = "First Name"> </TableColumn>
                      <TableColumn text = "Last Name">  </TableColumn>
                      <TableColumn text = "email">  </TableColumn>
            </columns>
        </TableView>
    </GridPane>
</Scene>

Answer 1

您忘记了GridPane的<children>标记：

<GridPane alignment = "center" hgap = "10" vgap = "10">
    <padding> <Insets top = "10" right = "10" bottom = "10" left = "10"/> </padding>
    <children>
      <Label text = "Address Book" GridPane.columnIndex = "0" GridPane.rowIndex = "0" style = "-fx-font: NORMAL 20 Tahoma;"/>
      <TableView fx:id = "tableView" GridPane.columnIndex = "0" GridPane.rowIndex = "1">
        <columns> <TableColumn text = "First Name"> </TableColumn>
                  <TableColumn text = "Last Name">  </TableColumn>
                  <TableColumn text = "email">  </TableColumn>
        </columns>
      </TableView>
    </children>
</GridPane>

因此，FXML试图将Label和Table放到default属性中，而这对于GridPane是不可用的。

FXML File生成GridPane默认属性LoadException

1 个答案: