Arquivo Discussoes de Programacao e Tecnologia Olá pessoal
Estou desenvolvendo um tela em JavaFX. Estou usando o layout GridPane.
Ao adicionar um ComboBox na GridPane, o ComboBox não fica com o tamanho da célula reservada para ele, pois o seu tamanho depende do tamanho dos valores contido nesse ComboBox.
Alguém sabe se há alguma configuração via código java ou até mesmo css para fazer com que o ComboBox ocupe todo o espaço reservado para ele?
Olá, se estiver usando FXML, coloque o seu combo dentro de um AnchorPane e coloque as constantes de layout como zero:
<AnchorPane GridPane.hgrow="SOMETIMES" GridPane.rowIndex="1" GridPane.vgrow="SOMETIMES"> <children> <ComboBox AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" /> </children> </AnchorPane>
<strong>código completo:</strong>
` <?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.ChoiceBox?>
<?import javafx.scene.control.ComboBox?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.RowConstraints?>
<GridPane hgap="10.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="- Infinity" prefHeight="80.0" prefWidth="345.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8.0.60">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="161.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="164.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="127.0" minHeight="0.0" prefHeight="0.0" />
<RowConstraints maxHeight="-Infinity" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="-Infinity" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<AnchorPane GridPane.hgrow="SOMETIMES" GridPane.rowIndex="1" GridPane.vgrow="SOMETIMES">
<children>
<ComboBox AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
</children>
</AnchorPane>
<AnchorPane GridPane.columnIndex="1" GridPane.hgrow="SOMETIMES" GridPane.rowIndex="2" GridPane.vgrow="SOMETIMES">
<children>
<ChoiceBox prefWidth="150.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
</children>
</AnchorPane>
</children>
<padding>
<Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
</padding>
</GridPane>
`
Basta setar as propriedades do gridPane onde esta seu combobox para
Coluna Vertical Propriedade:
Min Width: USE_COMPUTED_SIZE
Pref Width: USE_COMPUTED_SIZE
Max Width: MAX_VALUE
hGrow: INHERIT
Linha Horizontal Propriedade:
Min Width: USE_COMPUTED_SIZE
Pref Width: USE_COMPUTED_SIZE
Max Width: MAX_VALUE
vGrow: INHERIT
se fizer isto via Fxml no editor vai funcionar;
“<“GridPane maxHeight=”-Infinity” maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight=“400.0” prefWidth=“600.0” xmlns:fx=“http://javafx.com/fxml/1” xmlns=“http://javafx.com/javafx/8”>
"<“columnConstraints>
”<“ColumnConstraints minWidth=“10.0” prefWidth=“100.0” />
”<“ColumnConstraints maxWidth=“1.7976931348623157E308” />
”<"/columnConstraints>
"<“rowConstraints>
”<“RowConstraints maxHeight=“1.7976931348623157E308” />
”<“RowConstraints maxHeight=“1.7976931348623157E308” />
”<“RowConstraints maxHeight=“1.7976931348623157E308” />
”<"/rowConstraints>
"<“children>
”<“ComboBox prefWidth=“150.0” GridPane.columnIndex=“1” GridPane.rowIndex=“2” />
”<"/children>
"<"/GridPane>
Desculpe as “<” tive que colocar não sei porque mas estou sem tempo.
abraços.