從表格單元格中的TextField捕獲值

場景：將逗號分隔值傳遞給表格。 2列，其中一列具有原始值，另一列具有內部填充值的文本字段。他們排隊，所以我可以添加/更改值，並將更改複製到一個字符串。從表格單元格中的TextField捕獲值

我不知道如何捕捉TextField數據後，他們被放在表中。下面的代碼：

主營：

import javafx.application.Application; 
import javafx.fxml.FXMLLoader; 
import javafx.stage.Stage; 
import javafx.scene.Parent; 
import javafx.scene.Scene; 

public class Main extends Application { 


    public static void main(String[] args) { 
     launch(args); 
    } 

    @Override 
    public void start(Stage primaryStage) { 
     try { 
      Parent root = FXMLLoader.load(getClass().getResource("/application/MainFxml.fxml")); //this is the file that 
      Scene scene = new Scene(root,800,800); ////100,100 is width and height of window 
      scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm()); 
      primaryStage.setScene(scene); 
      primaryStage.show(); 
     } catch(Exception e) { 
      e.printStackTrace(); 
     } 
    } 
}

控制器：

import java.net.URL; 
import java.util.ArrayList; 
import java.util.Arrays; 
import java.util.EnumSet; 
import java.util.ResourceBundle; 
import javafx.beans.property.SimpleObjectProperty; 
import javafx.beans.property.SimpleStringProperty; 
import javafx.beans.property.StringProperty; 
import javafx.collections.FXCollections; 
import javafx.collections.ObservableList; 
import javafx.event.ActionEvent; 
import javafx.event.EventHandler; 
import javafx.fxml.FXML; 
import javafx.fxml.Initializable; 
import javafx.geometry.Pos; 
import javafx.scene.control.Button; 
import javafx.scene.control.ListView; 
import javafx.scene.control.TableCell; 
import javafx.scene.control.TableColumn; 
import javafx.scene.control.TableView; 
import javafx.scene.control.TextField; 
import javafx.scene.control.TableColumn.CellEditEvent; 
import javafx.scene.control.cell.PropertyValueFactory; 
import javafx.scene.control.cell.TextFieldTableCell; 
import javafx.scene.layout.HBox; 

public class MainFxmlController implements Initializable { 

    public static int count=-1; 

    @FXML public TableView<tableClass> table = new TableView<tableClass>(); 
    @FXML private TableColumn<tableClass, String>col1; 
    @SuppressWarnings({ "unchecked", "rawtypes" }) 
    @FXML public TableColumn<tableClass, Row> col2 = new TableColumn("Row"); 

    @FXML public TextField txt; 
    @FXML public Button btn, btn2; 
    @FXML public ListView<String> listView = new ListView<String>(); 
    public static ArrayList<String> input = new ArrayList<String>(); 

    final HBox hb = new HBox(); 
    public ObservableList<tableClass> obList = FXCollections.observableArrayList(); // each column contains an observable list object 
    public ObservableList<tableClass> loadTable(){ 
     return obList; //return data object 
    }////END loadData 


    @Override 
    public void initialize(URL url, ResourceBundle rb) { 
      table.setEditable(true); 
      col1.setCellValueFactory(cellData -> cellData.getValue().getCol1()); 


      col2.setCellFactory((param) -> new TextFieldCell<tableClass, Row>(EnumSet.allOf(Row.class))); 
      col2.setCellValueFactory(new PropertyValueFactory<tableClass, Row>("Row")); 
      col2.setOnEditCommit(
        new EventHandler<CellEditEvent<tableClass, Row>>() { 
         @Override 
         public void handle(CellEditEvent<tableClass, Row> t) { 
          ((tableClass) t.getTableView().getItems().get(
           t.getTablePosition().getRow()) 
           ).setCol2(t.getNewValue()); 
         } 
        } 
       ); 

      tableClass Entry = new tableClass(" ", Row.Row1); //create the table using getters/setters from Table Class 
      table.getItems().addAll(Entry);   
      table.setItems(loadTable()); 

      col1.setCellFactory(TextFieldTableCell.<tableClass>forTableColumn()); //Makes the columns themselves editable 
      col1.setOnEditCommit(
        new EventHandler<CellEditEvent<tableClass, String>>() { 
         @Override 
         public void handle(CellEditEvent<tableClass, String> t) { 
          ((tableClass) t.getTableView().getItems().get(t.getTablePosition().getRow())).setCol1(t.getNewValue()); 
         }    
        } 
        ); 
      col1.setStyle("-fx-alignment: BOTTOM-RIGHT;"); //to alight text next to textArea 

      txt.setText("fsad,0,0,gfds,43,4,4,fdsg,rtewrtwe,0,67,3,4,4,,4,44,,4"); //TO BE ROMOVED UPON COMPLETION 

    }//end initialize 

    public void buttonAction(ActionEvent e){ 
     if(txt.getText() != ""){ 
      System.out.println(txt.getText()); 
      ArrayList<String> myList = new ArrayList<String>(Arrays.asList(txt.getText().split(","))); 
      input = myList;  
     } 

     for(int i =0; i< input.size(); i++){ 
      Row.Row1.equals(input.get(i).toString()); 
      obList.add(new tableClass(input.get(i).toString(), Row.Row1)); 
     }//end for 

    }//end buttonAction 


    public void captureText(ActionEvent e){ 

     /* 
     * HERE I NEED TO CAPTURE VALUES FROM THE TEXT FIELDS 
     * IN COL2 
     */ 

    } 



    public static enum Row { //enum for the dxTable radio button if you want any other options, add another value and another radio buttton will be populated 
     Row1; 
    } 


    public static class TextFieldCell<S,T extends Enum<T>> extends TableCell<S,T>{ 

     private EnumSet<T> enumeration; 

     public TextFieldCell(EnumSet<T> enumeration) { 
      this.enumeration = enumeration; 
     } 

     @Override 
     protected void updateItem(T item, boolean empty) 
     { 
      super.updateItem(item, empty); 
      if (!empty) 
      { 
       // gui setup 
       HBox hb = new HBox(7); 
       hb.setAlignment(Pos.CENTER); 


       // create a radio button for each 'element' of the enumeration 
       for (Enum<T> enumElement : enumeration) { 
         try{ 
         TextField textField = new TextField(input.get(count)); 
         textField.setUserData(enumElement); 
         hb.getChildren().add(textField); 
         }catch(IndexOutOfBoundsException e){} 
       } 

       // issue events on change of the selected radio button 

       setGraphic(hb); 
       count++; 
      } //end if 
      else 
       setGraphic(null); 
     }//updateItem 
    }//END TextFieldCell class 


    public static class tableClass{    ///table object with getters and setters. 
     public final SimpleStringProperty col1; 
     public final SimpleObjectProperty<Row> col2 = new SimpleObjectProperty<Row>();  

     public tableClass(String col1, Row t) { //uses an enum for the second type 
      this.col1 = new SimpleStringProperty(col1); 
      this.col2.setValue(t); 
     } 

     public StringProperty getCol1() { 
      return col1; 
     } 

     public void setCol1(String i) { 
      col1.set(i); 
     } 

     public void setCol2(Row t) { 
      col2.set(t); 
     }  

     public Row getCol2() { 
      return col2.get(); 
     } 
     public String getCol2(int index) { 

      return ""; 
     } 

     }//end table class 
}//end controller

FXML：

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

<?import javafx.scene.control.Button?> 
<?import javafx.scene.control.TableColumn?> 
<?import javafx.scene.control.TableView?> 
<?import javafx.scene.control.TextField?> 
<?import javafx.scene.layout.AnchorPane?> 

<AnchorPane prefHeight="800.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.60" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.MainFxmlController"> 
    <children> 
     <Button fx:id="btn" layoutX="723.0" layoutY="26.0" mnemonicParsing="false" onAction="#buttonAction" text="btn" /> 
     <TextField fx:id="txt" layoutX="41.0" layoutY="26.0" prefHeight="25.0" prefWidth="647.0" /> 
     <TableView fx:id="table" editable="true" layoutX="41.0" layoutY="106.0" prefHeight="588.0" prefWidth="451.0"> 
     <columns> 
      <TableColumn fx:id="col1" prefWidth="75.0" text="C1" /> 
      <TableColumn fx:id="col2" prefWidth="114.0" text="C2" /> 
     </columns> 
     </TableView> 
     <Button fx:id="btn2" layoutX="507.0" layoutY="669.0" mnemonicParsing="false" onAction="#captureText" text="Button" /> 
    </children> 
</AnchorPane>

任何幫助將不勝感激。

來源

2016-10-21 Nevets17

我不確定到底是在做什麼，但是我找到了一種方法，當他們按回車時得到TextField。

在您的TextFieldCell課程中，我添加了一個setOnAction以獲取用戶在TextField中輸入的內容。

TextField textField = new TextField(input.get(count)); 
textField.setUserData(enumElement); 
textField.setOnAction(event -> { 
    System.out.println("Gotcha"); 
});

您可以使用該按鈕代替按鈕對輸入的文本執行任何操作。

我不知道如何使用您的按鈕以編程方式抓住col2中的所有TextField並獲取它們的文本。

但是，與setOnAction你可以添加你喜歡的任何內容，並希望做你需要做的。

編輯1 隨着工作的一些繁重的編輯，我已經完成了！我會留在舊的答案，因爲它直接適用於您的源代碼。

首先，我發了col2看起來像這樣。

@FXML public TableColumn<tableClass, TextField> col2;

然後，我用我的優勢和setCellValueFactory像這樣：

col2.setCellValueFactory(new PropertyValueFactory<>("col2"));

一切與col2做我不得不更新/刪除讓它與TextField工作，我結束用更短的源代碼，可以做你想做的事情。示例在captureText方法中。我編輯了tableClass以利用TextField，我完全刪除了你的cellFactory類。希望這可以幫助。

@FXML public TableView<tableClass> table; 
@FXML private TableColumn<tableClass, String>col1; 
@SuppressWarnings({ "unchecked", "rawtypes" }) 
@FXML public TableColumn<tableClass, TextField> col2; 

@FXML public TextField txt; 
@FXML public Button btn, btn2; 
public static ArrayList<String> input = new ArrayList<String>(); 

public static Group hb = new Group(); 
public ObservableList<tableClass> obList = FXCollections.observableArrayList(); // each column contains an observable list object 
public ObservableList<tableClass> loadTable(){ 
    return obList; //return data object 
}////END loadData 


@Override 
public void initialize(URL url, ResourceBundle rb) { 
    table.setEditable(true); 
    col1.setCellValueFactory(cellData -> cellData.getValue().col1Property()); 


    col2.setCellValueFactory(new PropertyValueFactory<>("col2")); 

    table.setItems(loadTable()); 

    col1.setCellFactory(TextFieldTableCell.<tableClass>forTableColumn()); //Makes the columns themselves editable 
    col1.setOnEditCommit(
      new EventHandler<CellEditEvent<tableClass, String>>() { 
       @Override 
       public void handle(CellEditEvent<tableClass, String> t) { 
        ((tableClass) t.getTableView().getItems().get(t.getTablePosition().getRow())).setCol1(t.getNewValue()); 
       } 
      } 
    ); 
    col1.setStyle("-fx-alignment: BOTTOM-RIGHT;"); //to alight text next to textArea 

    txt.setText("fsad,0,0,gfds,43,4,4,fdsg,rtewrtwe,0,67,3,4,4,,4,44,,4"); //TO BE ROMOVED UPON COMPLETION 

}//end initialize 

public void buttonAction(ActionEvent e){ 
    if(txt.getText() != ""){ 
     System.out.println(txt.getText()); 
     ArrayList<String> myList = new ArrayList<String>(Arrays.asList(txt.getText().split(","))); 
     input = myList; 
    } 

    for(int i =0; i< input.size(); i++){ 
     obList.add(new tableClass(input.get(i),input.get(i))); 
    }//end for 

}//end buttonAction 


public void captureText(ActionEvent e) { 
    obList.forEach(event -> { 
     event.setCol1(event.getCol2().getText()); 
    }); 
    /* 
    * HERE I NEED TO CAPTURE VALUES FROM THE TEXT FIELDS 
    * IN COL2 
    */ 
} 


public static class tableClass{    ///table object with getters and setters. 
    public final SimpleStringProperty col1; 
    public final TextField col2; 

    public tableClass(String col1, String col2) { //uses an enum for the second type 
     this.col1 = new SimpleStringProperty(col1); 
     this.col2 = new TextField(col2); 
    } 

    public StringProperty col1Property() { 
     return col1; 
    } 
    public String getCol1(){ 
     return col1.get(); 
    } 

    public void setCol1(String i) { 
     col1.set(i); 
    } 

    public void setCol2(String tx) { 
     col2.setText(tx); 
    } 

    public TextField getCol2() { 
     return col2; 
    } 

}//end table class

來源

2016-10-21 02:07:27

captureText動作事件的目的是捕獲所有的文本字段，並連接到一個字符串。我試試你想出來的東西。謝謝！ – Nevets17

是的，我想了很多，可惜我找不出一種方法來抓住他們。也許別人可以。 –

我得到它的工作，但我不得不大量修改你的代碼。 –

從表格單元格中的TextField捕獲值

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