JavaFX - How to make ComboBox hgrow?












9

















I have a problem with JavaFX(8), HBox, ComboBox and HGrow.
HGrow does not work in combination with ComboBox.


(INFO: with TextField (instead of ComboBox), it works as expected!)



This is my FXML-Code:



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

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

<VBox prefHeight="117.0" prefWidth="285.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.test.TestController">
<children>
<HBox prefHeight="105.0" prefWidth="196.0" VBox.vgrow="ALWAYS">
<children>
<ComboBox fx:id="fxCboTest" prefHeight="25.0" prefWidth="62.0" HBox.hgrow="ALWAYS" />
</children>
</HBox>
</children>
</VBox>


this Code will result in:



enter image description here



i also tried following code (without success, this code does nothing):



HBox.setHgrow(uiController.fxCboTest, Priority.ALWAYS);


Does anyone has an idea how to make an ComboBox HGrow?










share|improve this question



























    9

















    I have a problem with JavaFX(8), HBox, ComboBox and HGrow.
    HGrow does not work in combination with ComboBox.


    (INFO: with TextField (instead of ComboBox), it works as expected!)



    This is my FXML-Code:



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

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

    <VBox prefHeight="117.0" prefWidth="285.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.test.TestController">
    <children>
    <HBox prefHeight="105.0" prefWidth="196.0" VBox.vgrow="ALWAYS">
    <children>
    <ComboBox fx:id="fxCboTest" prefHeight="25.0" prefWidth="62.0" HBox.hgrow="ALWAYS" />
    </children>
    </HBox>
    </children>
    </VBox>


    this Code will result in:



    enter image description here



    i also tried following code (without success, this code does nothing):



    HBox.setHgrow(uiController.fxCboTest, Priority.ALWAYS);


    Does anyone has an idea how to make an ComboBox HGrow?










    share|improve this question

























      9












      9








      9


      1








      I have a problem with JavaFX(8), HBox, ComboBox and HGrow.
      HGrow does not work in combination with ComboBox.


      (INFO: with TextField (instead of ComboBox), it works as expected!)



      This is my FXML-Code:



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

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

      <VBox prefHeight="117.0" prefWidth="285.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.test.TestController">
      <children>
      <HBox prefHeight="105.0" prefWidth="196.0" VBox.vgrow="ALWAYS">
      <children>
      <ComboBox fx:id="fxCboTest" prefHeight="25.0" prefWidth="62.0" HBox.hgrow="ALWAYS" />
      </children>
      </HBox>
      </children>
      </VBox>


      this Code will result in:



      enter image description here



      i also tried following code (without success, this code does nothing):



      HBox.setHgrow(uiController.fxCboTest, Priority.ALWAYS);


      Does anyone has an idea how to make an ComboBox HGrow?










      share|improve this question
















      I have a problem with JavaFX(8), HBox, ComboBox and HGrow.
      HGrow does not work in combination with ComboBox.


      (INFO: with TextField (instead of ComboBox), it works as expected!)



      This is my FXML-Code:



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

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

      <VBox prefHeight="117.0" prefWidth="285.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.test.TestController">
      <children>
      <HBox prefHeight="105.0" prefWidth="196.0" VBox.vgrow="ALWAYS">
      <children>
      <ComboBox fx:id="fxCboTest" prefHeight="25.0" prefWidth="62.0" HBox.hgrow="ALWAYS" />
      </children>
      </HBox>
      </children>
      </VBox>


      this Code will result in:



      enter image description here



      i also tried following code (without success, this code does nothing):



      HBox.setHgrow(uiController.fxCboTest, Priority.ALWAYS);


      Does anyone has an idea how to make an ComboBox HGrow?







      combobox javafx javafx-8






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 7 '15 at 10:55









      BenBen

      2,2971438




      2,2971438
























          3 Answers
          3






          active

          oldest

          votes


















          21














          This is an answer to my own question.

          After some testing, I found out that when setting Max Width to MAX_VALUE, it works:



          enter image description here



          This will result in following code/xml from SceneBuilder:



          ...
          <children>
          <ComboBox maxWidth="1.7976931348623157E308" prefWidth="150.0" HBox.hgrow="ALWAYS" />
          </children>
          ...


          where 1.7976931348623157E308 looks like Double.MAX_VALUE.


          This will also work with multiple controls in Hbox.
          enter image description here



          In my opinion, this is not very consequently/consistently.

          I still don't unserstand why HGrow does not work for ComboBox.






          share|improve this answer


























          • hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

            – James_D
            Apr 7 '15 at 13:00






          • 1





            So, why does it work when just replacing ComboBox with TextField in XML?

            – Ben
            Apr 7 '15 at 13:07






          • 4





            Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

            – James_D
            Apr 8 '15 at 2:15





















          1














          This is a hack, but it should work. Inside the controller's intialize method, define a binding.



          @Override
          public void initialize(URL location, ResourceBundle resources) {
          fxCboTest.prefWidthProperty().bind(hbox.widthProperty());
          }





          share|improve this answer
























          • Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

            – Ben
            Apr 7 '15 at 11:45













          • The question never mentioned that you wanted multiple children in the HBox.

            – ItachiUchiha
            Apr 7 '15 at 12:47











          • You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

            – Ben
            Apr 7 '15 at 13:01



















          1














          I had the same problem, but I'm not using Scene Builder.

          So my fix, based on Ben's answer, is in the code below:



          ComboBox comboBox = new ComboBox(...);
          ...
          comboBox.setMaxWidth(Double.MAX_VALUE);





          share|improve this answer

























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            3 Answers
            3






            active

            oldest

            votes








            3 Answers
            3






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            21














            This is an answer to my own question.

            After some testing, I found out that when setting Max Width to MAX_VALUE, it works:



            enter image description here



            This will result in following code/xml from SceneBuilder:



            ...
            <children>
            <ComboBox maxWidth="1.7976931348623157E308" prefWidth="150.0" HBox.hgrow="ALWAYS" />
            </children>
            ...


            where 1.7976931348623157E308 looks like Double.MAX_VALUE.


            This will also work with multiple controls in Hbox.
            enter image description here



            In my opinion, this is not very consequently/consistently.

            I still don't unserstand why HGrow does not work for ComboBox.






            share|improve this answer


























            • hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

              – James_D
              Apr 7 '15 at 13:00






            • 1





              So, why does it work when just replacing ComboBox with TextField in XML?

              – Ben
              Apr 7 '15 at 13:07






            • 4





              Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

              – James_D
              Apr 8 '15 at 2:15


















            21














            This is an answer to my own question.

            After some testing, I found out that when setting Max Width to MAX_VALUE, it works:



            enter image description here



            This will result in following code/xml from SceneBuilder:



            ...
            <children>
            <ComboBox maxWidth="1.7976931348623157E308" prefWidth="150.0" HBox.hgrow="ALWAYS" />
            </children>
            ...


            where 1.7976931348623157E308 looks like Double.MAX_VALUE.


            This will also work with multiple controls in Hbox.
            enter image description here



            In my opinion, this is not very consequently/consistently.

            I still don't unserstand why HGrow does not work for ComboBox.






            share|improve this answer


























            • hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

              – James_D
              Apr 7 '15 at 13:00






            • 1





              So, why does it work when just replacing ComboBox with TextField in XML?

              – Ben
              Apr 7 '15 at 13:07






            • 4





              Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

              – James_D
              Apr 8 '15 at 2:15
















            21












            21








            21







            This is an answer to my own question.

            After some testing, I found out that when setting Max Width to MAX_VALUE, it works:



            enter image description here



            This will result in following code/xml from SceneBuilder:



            ...
            <children>
            <ComboBox maxWidth="1.7976931348623157E308" prefWidth="150.0" HBox.hgrow="ALWAYS" />
            </children>
            ...


            where 1.7976931348623157E308 looks like Double.MAX_VALUE.


            This will also work with multiple controls in Hbox.
            enter image description here



            In my opinion, this is not very consequently/consistently.

            I still don't unserstand why HGrow does not work for ComboBox.






            share|improve this answer















            This is an answer to my own question.

            After some testing, I found out that when setting Max Width to MAX_VALUE, it works:



            enter image description here



            This will result in following code/xml from SceneBuilder:



            ...
            <children>
            <ComboBox maxWidth="1.7976931348623157E308" prefWidth="150.0" HBox.hgrow="ALWAYS" />
            </children>
            ...


            where 1.7976931348623157E308 looks like Double.MAX_VALUE.


            This will also work with multiple controls in Hbox.
            enter image description here



            In my opinion, this is not very consequently/consistently.

            I still don't unserstand why HGrow does not work for ComboBox.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Oct 2 '16 at 10:44

























            answered Apr 7 '15 at 12:04









            BenBen

            2,2971438




            2,2971438













            • hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

              – James_D
              Apr 7 '15 at 13:00






            • 1





              So, why does it work when just replacing ComboBox with TextField in XML?

              – Ben
              Apr 7 '15 at 13:07






            • 4





              Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

              – James_D
              Apr 8 '15 at 2:15





















            • hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

              – James_D
              Apr 7 '15 at 13:00






            • 1





              So, why does it work when just replacing ComboBox with TextField in XML?

              – Ben
              Apr 7 '15 at 13:07






            • 4





              Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

              – James_D
              Apr 8 '15 at 2:15



















            hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

            – James_D
            Apr 7 '15 at 13:00





            hgrow will not override a resizable node's maximum width, which is set to the preferred size by default. There's a little information on this in the tutorial and also an excellent presentation at Parleys (registration required).

            – James_D
            Apr 7 '15 at 13:00




            1




            1





            So, why does it work when just replacing ComboBox with TextField in XML?

            – Ben
            Apr 7 '15 at 13:07





            So, why does it work when just replacing ComboBox with TextField in XML?

            – Ben
            Apr 7 '15 at 13:07




            4




            4





            Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

            – James_D
            Apr 8 '15 at 2:15







            Dug a little further into the default settings. The maxWidth defaults for both to the sentinel value Region.COMPUTED_SIZE, which causes a call to computeMaxWidth(...). For controls, this in turn delegates to the skin implementation. Digging into the source code, ComboBoxBaseSkin resolves this by returning the preferred width; the TextFieldSkin just inherits the default SkinBase implementation, which returns Double.MAX_VALUE. Hence a combo box by default is limited to its preferred size; a text field is allowed to grow indefinitely. The bottom line is they have different defaults.

            – James_D
            Apr 8 '15 at 2:15















            1














            This is a hack, but it should work. Inside the controller's intialize method, define a binding.



            @Override
            public void initialize(URL location, ResourceBundle resources) {
            fxCboTest.prefWidthProperty().bind(hbox.widthProperty());
            }





            share|improve this answer
























            • Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

              – Ben
              Apr 7 '15 at 11:45













            • The question never mentioned that you wanted multiple children in the HBox.

              – ItachiUchiha
              Apr 7 '15 at 12:47











            • You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

              – Ben
              Apr 7 '15 at 13:01
















            1














            This is a hack, but it should work. Inside the controller's intialize method, define a binding.



            @Override
            public void initialize(URL location, ResourceBundle resources) {
            fxCboTest.prefWidthProperty().bind(hbox.widthProperty());
            }





            share|improve this answer
























            • Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

              – Ben
              Apr 7 '15 at 11:45













            • The question never mentioned that you wanted multiple children in the HBox.

              – ItachiUchiha
              Apr 7 '15 at 12:47











            • You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

              – Ben
              Apr 7 '15 at 13:01














            1












            1








            1







            This is a hack, but it should work. Inside the controller's intialize method, define a binding.



            @Override
            public void initialize(URL location, ResourceBundle resources) {
            fxCboTest.prefWidthProperty().bind(hbox.widthProperty());
            }





            share|improve this answer













            This is a hack, but it should work. Inside the controller's intialize method, define a binding.



            @Override
            public void initialize(URL location, ResourceBundle resources) {
            fxCboTest.prefWidthProperty().bind(hbox.widthProperty());
            }






            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Apr 7 '15 at 11:15









            ItachiUchihaItachiUchiha

            27.6k677136




            27.6k677136













            • Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

              – Ben
              Apr 7 '15 at 11:45













            • The question never mentioned that you wanted multiple children in the HBox.

              – ItachiUchiha
              Apr 7 '15 at 12:47











            • You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

              – Ben
              Apr 7 '15 at 13:01



















            • Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

              – Ben
              Apr 7 '15 at 11:45













            • The question never mentioned that you wanted multiple children in the HBox.

              – ItachiUchiha
              Apr 7 '15 at 12:47











            • You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

              – Ben
              Apr 7 '15 at 13:01

















            Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

            – Ben
            Apr 7 '15 at 11:45







            Thanks for your suggestion, but this code may not work properly when (not in my code example, cause i want keep my example as simple as possible) the hbox contains multiple controls, like ComboBox and Button. i want to avoid too much calculating by myself.

            – Ben
            Apr 7 '15 at 11:45















            The question never mentioned that you wanted multiple children in the HBox.

            – ItachiUchiha
            Apr 7 '15 at 12:47





            The question never mentioned that you wanted multiple children in the HBox.

            – ItachiUchiha
            Apr 7 '15 at 12:47













            You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

            – Ben
            Apr 7 '15 at 13:01





            You are right, this is why i add an comment to your answer why your solution may not work with multiple controls. i didn't said that your solution is absolute unhelpful.

            – Ben
            Apr 7 '15 at 13:01











            1














            I had the same problem, but I'm not using Scene Builder.

            So my fix, based on Ben's answer, is in the code below:



            ComboBox comboBox = new ComboBox(...);
            ...
            comboBox.setMaxWidth(Double.MAX_VALUE);





            share|improve this answer






























              1














              I had the same problem, but I'm not using Scene Builder.

              So my fix, based on Ben's answer, is in the code below:



              ComboBox comboBox = new ComboBox(...);
              ...
              comboBox.setMaxWidth(Double.MAX_VALUE);





              share|improve this answer




























                1












                1








                1







                I had the same problem, but I'm not using Scene Builder.

                So my fix, based on Ben's answer, is in the code below:



                ComboBox comboBox = new ComboBox(...);
                ...
                comboBox.setMaxWidth(Double.MAX_VALUE);





                share|improve this answer















                I had the same problem, but I'm not using Scene Builder.

                So my fix, based on Ben's answer, is in the code below:



                ComboBox comboBox = new ComboBox(...);
                ...
                comboBox.setMaxWidth(Double.MAX_VALUE);






                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited Nov 27 '18 at 1:58









                סטנלי גרונן

                1,75682244




                1,75682244










                answered Nov 26 '18 at 20:29









                pinkston00pinkston00

                737




                737






























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