[英]JavaFX alert box on button click
I am currently working on my JavaFX ZOO project and I have a problem. 我目前正在JavaFX ZOO项目上工作,但是有问题。 I am showing all of my records in a TableView and one of the columns contains a delete button. 我将所有记录显示在TableView中,其中一列包含一个删除按钮。 It all works perfectly, but I want to have an alert box showing up after clicking that delete button, just for safety. 一切正常,但是为了安全起见,我想在单击该删除按钮后显示一个警告框。
So my delete button class looks like this: 所以我的删除按钮类如下所示:
private class ButtonCell extends TableCell<Record, Boolean> {
final Button cellButton = new Button("Delete");
ButtonCell(){
cellButton.setOnAction(new EventHandler<ActionEvent>(){
@Override
public void handle(ActionEvent t) {
Animal currentAnimal = (Animal) ButtonCell.this.getTableView().getItems().get(ButtonCell.this.getIndex());
data.remove(currentAnimal);
}
});
}
@Override
protected void updateItem(Boolean t, boolean empty) {
super.updateItem(t, empty);
if(!empty){
setGraphic(cellButton);
}
}
}
Also, my AlertBox class looks like this: 另外,我的AlertBox类如下所示:
public class AlertBox {
public static void display(String title, String message){
Stage window = new Stage();
window.initModality(Modality.APPLICATION_MODAL);
window.setTitle(title);
window.setMinWidth(250);
Label label = new Label();
label.setText(message);
Button deleteButton = new Button("I'm sure, delete!");
VBox layout = new VBox(10);
layout.getChildren().addAll(label,deleteButton);
layout.setAlignment(Pos.CENTER);
Scene scene = new Scene(layout);
window.setScene(scene);
window.showAndWait();
}
}
I want to make this so after i click "Delete" button, the alert box shows up, ask for permission, and after that the rest of the deletion code is being performed. 我要这样做,因此在我单击“删除”按钮后,将显示警报框,征求许可,然后执行其余的删除代码。
I also considered to add Alert instead of my AlertBox class, fe: http://code.makery.ch/blog/javafx-dialogs-official/ (Confirmation Dialog) but I have no idea how to implement it. 我还考虑添加Alert而不是我的AlertBox类,例如: http ://code.makery.ch/blog/javafx-dialogs-official/(确认对话框),但是我不知道如何实现它。
Any help would be great! 任何帮助将是巨大的! Thanks :) 谢谢 :)
I will borrow code from the website you mentioned. 我将从您提到的网站上借用代码。
cellButton.setOnAction(new EventHandler<ActionEvent>(){
@Override
public void handle(ActionEvent t){
Alert alert = new Alert(AlertType.CONFIRMATION);
alert.setTitle("Confirmation Dialog");
alert.setHeaderText("Look, a Confirmation Dialog");
alert.setContentText("Are you ok with this?");
Optional<ButtonType> result = alert.showAndWait();
if (result.get() == ButtonType.OK){
Animal currentAnimal = (Animal) ButtonCell.this.getTableView().getItems().get(ButtonCell.this.getIndex());
data.remove(currentAnimal);
}
}
});
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