DirectoryChooser Javafx buged？ [英] DirectoryChooser Javafx buged?

问题描述

我正在使用Directory Chooser设置带有所选路径的TextField。
如果我选择某个目录，如Desktop或任何其他文件夹，它会返回路径，但如果我从我的库中选择directorys，如我的Documents（C：\ Users \ Victor \ Document），则返回null。这是一个错误？
我正在使用下面的代码：

  DirectoryChooser chooser = new DirectoryChooser（）; 
 
 chooser.setTitle（Selecioneodiretório）; 
 
文件defaultDirectory = new文件（folderChooser）; 
 
 chooser.setInitialDirectory（defaultDirectory）; 
 
 File selectedDirectory = chooser.showDialog（null）; 
 
 pathFolderTxtField.setText（selectedDirectory.getAbsolutePath（））; 
 
 folderChooser = selectedDirectory.getPath（）; 
  

解决方案

这是一个错误。

它在JavaFX 2.2.6和Java 8中修复（都尚未发布）：

（显示警告信息）：

  import java.io.File; 
 import javafx.application.Application; 
 import static javafx.application.Application.launch; 
 import javafx.event。*; 
 import javafx.scene。*; 
 import javafx.scene.control。*; 
 import javafx.scene.layout.VBox; 
 import javafx.stage.DirectoryChooser; 
 import javafx.stage.Stage; 
 
公共类DirectoryChooserTest扩展Application {
 @Override public void start（final Stage stage）{
 final TextField pathField = new TextField（C：/ Users）; 
 pathField.setPrefWidth（250）; 
 
按钮chooseButton = new按钮（选择）; 
 chooseButton.setOnAction（new EventHandler< ActionEvent>（）{
 @Override public void handle（ActionEvent t）{
 chooseDirectory（stage，pathField）; 
} 
 }）; 
 
 VBox layout = new VBox（10）; 
 layout.getChildren（）。addAll（pathField，chooseButton）; 
 layout.setStyle（ -  fx-background-color：cornsilk; -fx-padding：10;）; 
 
 stage.setScene（new Scene（layout））; 
 stage.show（）; 
} 
 
 private void chooseDirectory（Stage stage，TextField pathField）{
 DirectoryChooser chooser = new DirectoryChooser（）; 
 chooser.setTitle（Selecioneodiretório）; 
 chooser.setInitialDirectory（new File（pathField.getText（）））; 
 File selectedDirectory = chooser.showDialog（stage）; 
 if（selectedDirectory！= null）{
 pathField.setText（selectedDirectory.getAbsolutePath（））; 
} 
} 
 
 public static void main（String [] args）{launch（args）; } 
} 
  

报告的错误是：

  E rror：8 0 0 7 0 0 5 7 inp F ile  - > G e t D i s p l a y N a m e（S I G D N _ F I L E S Y S P A T H，& p a t h）
 C O M E r r r r：8 0 0 7 0 0 5 7使用数据表来确定数据。 
  

要获得错误，您需要从目录选择器对话框的左侧面板中选择一个库。

I'm using Directory Chooser for set a TextField with the selected path. If I choose some directory like Desktop, or any other folder it returns the path, BUT if I choose the directorys from my library like my Documents (C:\Users\Victor\Documents) it returns null. Is it a bug?? I'm using the code below:

        DirectoryChooser chooser = new DirectoryChooser();

        chooser.setTitle("Selecione o diretório");

        File defaultDirectory = new File(folderChooser);

        chooser.setInitialDirectory(defaultDirectory);

        File selectedDirectory = chooser.showDialog(null);

        pathFolderTxtField.setText(selectedDirectory.getAbsolutePath());

        folderChooser = selectedDirectory.getPath();

解决方案

This is a bug.

It is fixed in JavaFX 2.2.6 and Java 8 (both not yet released):

RT-28571 Choose a Windows 7 Library in a DirectoryChooser results in a COM Error

The fix doesn't actually allow library selection. If the user tries to select a library, instead the JavaFX system pops up an alert and prevents the directory chooser from closing:

Sample code I ran on JavaFX 2.2.4 (which gave an error) and the early access Java 8b77 (which showed the alert message instead) was:

import java.io.File;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.event.*;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.VBox;
import javafx.stage.DirectoryChooser;
import javafx.stage.Stage;

public class DirectoryChooserTest extends Application {
  @Override public void start(final Stage stage) {    
    final TextField pathField = new TextField("C:/Users");
    pathField.setPrefWidth(250);

    Button chooseButton = new Button("Choose");
    chooseButton.setOnAction(new EventHandler<ActionEvent>() {
      @Override public void handle(ActionEvent t) {
        chooseDirectory(stage, pathField);
      }
    });

    VBox layout = new VBox(10);
    layout.getChildren().addAll(pathField, chooseButton);
    layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 10;");

    stage.setScene(new Scene(layout));
    stage.show();
  }

  private void chooseDirectory(Stage stage, TextField pathField) {
    DirectoryChooser chooser = new DirectoryChooser();
    chooser.setTitle("Selecione o diretório");
    chooser.setInitialDirectory(new File(pathField.getText()));
    File selectedDirectory = chooser.showDialog(stage);
    if (selectedDirectory != null) {
      pathField.setText(selectedDirectory.getAbsolutePath());
    }  
  }

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

Error reported is:

E r r o r : 8 0 0 7 0 0 5 7   i n   p F i l e - > G e t D i s p l a y N a m e ( S I G D N _ F I L E S Y S P A T H ,   & p a t h ) 
 C O M   E r r o r : 8 0 0 7 0 0 5 7   T h e   p a r a m e t e r   i s   i n c o r r e c t . 

To get the error you need to choose a library from the left hand panel of the directory chooser dialog.

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