javafx 2.1更新TableView

Question

我剛剛創建了一個TablView，並且我成功地將數據放入其中。 問題是，當我雙擊一個單元格（更新）它顯示更新的數據，但當我點擊更新後的單元格顯示舊數據！

下面的代碼：

table = new TableView<InvoiceLine>(); 
         table.setEditable(true); 


         Callback<TableColumn, TableCell> cellFactory = 
           new Callback<TableColumn, TableCell>() { 

            public TableCell call(TableColumn p) { 
             return new EditingCell(); 
            } 
           }; 

         ObservableList<InvoiceLine> data = FXCollections.observableArrayList(invoice_Lines); 
         table.setItems(data); 


         designationCol = new TableColumn("Designation"); 
         designationCol.onEditCommitProperty(); 
         designationCol.setCellValueFactory(new PropertyValueFactory<InvoiceLine, String>("invoicelineDesignation")); 
         designationCol.setCellFactory(cellFactory); 
         designationCol.setOnEditCommit(new EventHandler<CellEditEvent<InvoiceLine, String>>() { 

          @Override 
          public void handle(CellEditEvent<InvoiceLine, String> t) { 
           ((InvoiceLine) t.getTableView().getItems().get(
             t.getTablePosition().getRow())).setInvoicelineDesignation(t.getNewValue()); 
           System.out.println(t.getNewValue()); 
          } 
         }); 

         TableColumn quantiteCol = new TableColumn("Quantite"); 

         quantiteCol.setCellValueFactory(
           new PropertyValueFactory<InvoiceLine, String>("invoicelineQuantity")); 
         quantiteCol.setCellFactory(cellFactory); 

         quantiteCol.setOnEditCommit(
           new EventHandler<CellEditEvent<InvoiceLine, String>>() { 

            @Override 
            public void handle(CellEditEvent<InvoiceLine, String> t) { 
             ((InvoiceLine) t.getTableView().getItems().get(
               t.getTablePosition().getRow())).setInvoicelineQuantity(t.getNewValue()); 
             System.out.println(t.getNewValue()); 
            } 
           }); 

         TableColumn puCol = new TableColumn("Prix Unitaire"); 

         puCol.setCellValueFactory(
           new PropertyValueFactory<InvoiceLine, String>("invoicelineUnitPrice")); 
         puCol.setCellFactory(cellFactory); 

         puCol.setOnEditCommit(
           new EventHandler<CellEditEvent<InvoiceLine, String>>() { 

            @Override 
            public void handle(CellEditEvent<InvoiceLine, String> t) { 
             ((InvoiceLine) t.getTableView().getItems().get(
               t.getTablePosition().getRow())).setInvoicelineUnitPrice(t.getNewValue()); 
             System.out.println(t.getNewValue()); 
            } 
           }); 

         TableColumn totalCol = new TableColumn("Total"); 

         totalCol.setCellValueFactory(
           new PropertyValueFactory<InvoiceLine, String>("invoicelineAmount")); 
         totalCol.setCellFactory(cellFactory); 


         totalCol.setOnEditCommit(
           new EventHandler<CellEditEvent<InvoiceLine, String>>() { 

            @Override 
            public void handle(CellEditEvent<InvoiceLine, String> t) { 
             ((InvoiceLine) t.getTableView().getItems().get(
               t.getTablePosition().getRow())).setInvoicelineAmount(t.getNewValue()); 
             System.out.println(t.getNewValue()); 
            } 
           }); 

         table.getColumns().addAll(designationCol, quantiteCol, puCol, totalCol); 
         centerSplitPane.setBottom(table); 
        } 
       }); 

請某人能幫助我嗎？ thk

Answer 1

如果您遵循了TableView的官方教程，請在單元格的編輯模式下按ENTER鍵以提交更改。通過增加或者編輯EditingCell源代碼：

textField.focusedProperty().addListener(new ChangeListener<Boolean>() { 

    @Override 
    public void changed(ObservableValue<? extends Boolean> arg0, Boolean arg1, Boolean arg2) { 
     if (!arg2) { 
      commitEdit(textField.getText()); 
     } 
    } 
}); 

到createTextField()方法。當textField失去焦點時，這將會進行更改。