QDialog doesn't close

[jerome_isAviable]

@gabor53 try to use default message box button (not add QMessageBox::Close in information)
and use condition if(answer == 0) instead.
But... the principe is that, if your messagebox is modal, then the message box is waiting for you push button "OK" before the code ga ahead... right ?
so finally, condition serve nothing (there is only one button... condition serve for what ?).
finaly, just don't use condition but this->close() after QMessageBox::information.
Also, no need to declare QMessageBox mgx in this situation, directly call QMessageBox::information(....);
declare a variable for contain an object (QMessageBox or other) serve for add stuff/options and use it in other situation you not need here.

so the code you need should also be:

QMessageBox::information (this, tr("Confirmation"), tr("<b><font size = '16' color = 'green'>The Friend was added to the database. To add more press CTRL A."));
this->close();

as soon as possible: do it simple, do it easy.

on my codes (if i well understand what you are doing), i use a QMessageBox::question for ask if the user want to create an other one new object, if he want i clear entries or not for that or if it is finish. Then from there, i catch the answer (who is the number of button pushed) for call action like close or not, and function for delete entries of this dialog box or not. So when i'm waiting for know what the user want to do next, i ask him what him want. (i not said it is a good idea... there is many... but... it is an idea).
Did you try the code i share with you with QMessageBox::question ? this one works sure.
also, for see what int answer give you, you could try to add a "qDebug() << answer;" The retrurn depend of the function you call and the button you push. This would help you to see what to catch in condition for do what you want (i do like that when i'm not sure or when something not works like i would like...).

[gabor53]

@jerome_isAviable
Thank you. I really understand how this work. I guess the problem is that

this->close()

doesn't work no matter how I write QMessageBox. It doesn't even work, when there is no QMessageBox.

[kshegunov]

@gabor53 said:

I guess the problem is that
this->close()
doesn't work no matter how I write QMessageBox. It doesn't even work, when there is no QMessageBox.

Which means there's no problem with QMessageBox but with the rest of your code.

void Additem::close()
{
    qDebug() << "Close was called";
    Additem::reject ();
}

If close is properly called then you'd see "Close was called" in the debug window. If you don't see that, then close() isn't called. Use the debugger, put a breakpoint at the line where reject() is supposed to be called, if you don't hit the breakpoint, then you have your answer - the code is not executed at all.

Another thing, Additem::reject(); is a pretty strange way of calling members. Why are you using the fully qualified name to call the method, do you have a reject() override?

[gabor53]

@kshegunov
I see the "Close was called." message and it goes to reject(). But nothing happens.

[kshegunov]

@gabor53
You did not answer my question though.

Additem::reject(); is a pretty strange way of calling members. Why are you using the fully qualified name to call the method, do you have a reject() override?

[gabor53]

@kshegunov
Sorry. Sorry. I don't have a reject() override. I used the fully qualified name because I tried to use the name different ways just in case one version works. But none of these work:

reject()
this->reject()
Additem::reject()

[kshegunov]

@gabor53

That's unusual. Please provide the full class declaration of Additem and how you show the dialog.

[gabor53]

@kshegunov
Additem declaration (the whole Additem.h):

#ifndef ADDITEM_H
#define ADDITEM_H

#include "review.h"
#include "mainwindow.h"
#include <QBoxLayout>
#include <QDialogButtonBox>
#include <QCalendarWidget>
#include <QComboBox>
#include <QCoreApplication>
#include <QDate>
#include <QDebug>
#include <QDialog>
#include <QDialogButtonBox>
#include <QDir>
#include <QDirModel>
#include <QFileSystemModel>
#include <QFileDialog>
#include <QFlags>
#include <QFocusEvent>
#include <QFont>
#include <QFormLayout>
#include <QGridLayout>
#include <QIODevice>
#include <QLabel>
#include <QLineEdit>
#include <QListView>
#include <QMainWindow>
#include <QMessageBox>
#include <QPushButton>
#include <QScrollArea>
#include <QSize>
#include <QSizePolicy>
#include <QSqlDatabase>
#include <QSqlError>
#include <QSqlQuery>
#include <QStackedLayout>
#include <QString>
#include <QStringList>
#include <QTextEdit>
#include <QtCore>
#include <QtGlobal>
#include <QToolTip>
#include <QTreeView>
#include <QWidget>
#include <QWindow>

namespace Ui {
class Additem;
}



class Additem : public QDialog
{
    Q_OBJECT

public:

    //db

    //Buttons
    QPushButton *SubmitButton = new QPushButton;
    QPushButton *Image_Button = new QPushButton("Browse");
    QPushButton *Reset_Button = new QPushButton;

    //Functions
    void FunctAddtoDb(QString sIDr, QString namer, QString newWhatr, QString newMaterialr, QString newColorr, QString descriptionr, QString monthr, QString dayr, QString yearr, QString newSignedbyr, QString historyr, QString ager, QString notesr, QByteArray byteArrayr);
    void close();
    void closeAdditem();

       QString name;

    explicit Additem(QWidget *parent = 0);
    ~Additem();


private:
    Ui::Additem *ui;


    //Functions
    void Addcontent();
    QString getDescription();
    QString getHistory();
    void prepAdd();
    void clear();


    //QLabel
    QLabel* title = new QLabel;
    QLabel *angry_image_Label = new QLabel;
    QLabel *incorrect_Label = new QLabel;
    QLabel *spacer1 = new QLabel;
    QLabel *Label_ID = new QLabel;
    QLabel *ID_Display = new QLabel;
    QLabel *Label_Name = new QLabel;
    QLabel *Label_What = new QLabel; 
    QLabel *image_Label = new QLabel;
    QLabel *display_Label = new QLabel;
    QLabel *Material_Label = new QLabel;
    QLabel *color_Label = new QLabel;
    QLabel *descr_Label = new QLabel;
    QLabel *date_Label = new QLabel;
    QLabel *month_Label = new QLabel;
    QLabel *day_Label = new QLabel;
    QLabel *year_Label = new QLabel;
    QLabel *spacer2_Label = new QLabel;
    QLabel *spacer3_label = new QLabel;
    QLabel *signed_Label = new QLabel;
    QLabel *history_Label = new QLabel;
    QLabel *age_Label = new QLabel;
    QLabel *notes_Label = new QLabel;

	//Textedit
	QTextEdit * descr_TextEdit = new QTextEdit;
    QTextEdit *history_TextEdit = new QTextEdit;
    QTextEdit *notes_TextEdit = new QTextEdit;

    //Lineedit
    QLineEdit *age_LineEdit = new QLineEdit;

    //QCombobox
    QComboBox *What_Combo = new QComboBox(this);
    QComboBox *Material_Combo = new QComboBox;
    QComboBox *color_Combo = new QComboBox;
    QComboBox *month_Combo = new QComboBox;
    QComboBox *day_Combo = new QComboBox;
    QComboBox *year_Combo = new QComboBox;
    QComboBox *signedby_Combo = new QComboBox;

    //Layouts
    QHBoxLayout *name_Layout = new QHBoxLayout;
    QHBoxLayout *titleLayout = new QHBoxLayout;
    QHBoxLayout *button_Layout = new QHBoxLayout;
    QHBoxLayout *dateLayout = new QHBoxLayout;

    QVBoxLayout *mainLayout = new QVBoxLayout(this);

    QGridLayout *grid = new QGridLayout;

    //QString
    QString fileQstring = "C:/Programming/Projects/FolkFriends/db.db";

    QSqlDatabase db;
    QString what;
    QString newWhat;
    QString fileName;
    QString material;
    QString newMaterial;
    QString color;
    QString newColor;
    QString description;
    QString si;
    QString sj;
    QString sk;
    QString month;
    QString day;
    QString year;
    QString Signedby;
    QString newSignedby;
    QString history;
    QString age;
    QString notes;
    QString submit_warning;
    QString warning_what;
    QString submitError;
    QString sID;
    QString sIDr;

    QStringList list;

    //Int
    int ItemID = 0;
    int LastID = 0;
    int revItemID = 0;
    int yeark;
    int r;

	//Other

    QLineEdit *LineEdit_Name = new QLineEdit;
    QByteArray inByteArray;
    QByteArray byteArray;

private slots:
    void readAndValidate();
    void addMonth(int);
    void resetAll();
    void submit();
    void getAge();
    QString getNotes();
    void addSignedby(int);
    void addDay(int);
    void addYear(int);
    void getMaterial(int);
	void processcombo(int);
    void addColor(int);
    QString findimage();
    void closeAdd();

};

#endif // ADDITEM_H

This is the way I open it from mainwindow.cpp:

void MainWindow::on_actionAdd_Item_triggered()
{
    Additem *mAddItem = new Additem;
    mAddItem->exec ();
}

[kshegunov]

@gabor53

I couldn't spot anything that would cause this behavior. My advice is to strip down the code to the bare basics, and then add things in stages to isolate what is causing the problem.

[jerome_isAviable]

@gabor53
please, check that your class is a real QDialog and not a inherited from a QWidget.
If it is a QDialog well inherited, and the member function close() is not overrided, then I don't know any reasons for the dialogbox (if it is a real QDialog) not close.

eventually, do paste your code: header and source files of this QDialog box who doesn't want to close.
(use gist github or ix.io or wich you want for share this code, like that we can look at this closer)

[gabor53]

Thank you all. I started to rebuild things in hope that solves the problem.