JavaFx：如何在 FXML 中设置标签的 labelFor 属性？

Question

我有一个 TextField 和一个带有 mnemonicParsing 的标签。我想用 TextField 的 id 设置标签的 labelFor 属性。我如何在 FXML 中做到这一点？

<GridPane hgap="5.0" snapToPixel="false" vgap="10.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
      <Label maxWidth="-Infinity" text="_A Label" GridPane.halignment="RIGHT" GridPane.hgrow="NEVER" GridPane.vgrow="NEVER" mnemonicParsing="true" />
      <TextField id="myTextField" GridPane.columnIndex="1" GridPane.hgrow="NEVER" />
</children>
</GridPane>

谢谢

Answer 1

您可以使用美元符号：

<GridPane hgap="5.0" snapToPixel="false" vgap="10.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
    <children>
          <Label labelFor="$myTextField" maxWidth="-Infinity" text="_A Label" GridPane.halignment="RIGHT" GridPane.hgrow="NEVER" GridPane.vgrow="NEVER" mnemonicParsing="true"  />
          <TextField id="myTextField" GridPane.columnIndex="1" GridPane.hgrow="NEVER" />
    </children>
</GridPane>

Answer 2

如果找到解决方案...

<GridPane hgap="5.0" snapToPixel="false" vgap="10.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
<children>
      <Label maxWidth="-Infinity" text="_A Label" GridPane.halignment="RIGHT" GridPane.hgrow="NEVER" GridPane.vgrow="NEVER" mnemonicParsing="true">
           <labelFor>
               <TextField id="myTextField" GridPane.columnIndex="1" GridPane.hgrow="NEVER" />
           </labelFor>
      </Label>
      <fx:reference source="myTextField" />
</children>
</GridPane>