DirectoryChooser Javafx buged?

时间:2013-02-22 17:43:31

标签: javafx-2 javafx

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,如桌面,或任何其他文件夹,它返回路径,但如果我选择我的库中的directorys,如我的文档(C:\ Users \ Victor \ Documents),它返回null。这是一个错误? 我正在使用以下代码:

        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();

1 个答案:

答案 0 :(得分:4)

这是一个错误。

在JavaFX 2.2.6和Java 8(两者都尚未发布)中修复了它:

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

修复程序实际上不允许选择库。如果用户尝试选择库,则JavaFX系统会弹出警报并阻止目录选择器关闭:

libraryselectedalert

我在JavaFX 2.2.4(发出错误)上运行的示例代码和早期访问Java 8b77(显示警报消息)是:

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); }
}

报告的错误是:

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 . 

要获取错误,您需要从目录选择器对话框的左侧面板中选择一个库。