MessageBox appearnig twice.

[ronak.vashi]

Hi all,

Any idea, how to avoid double appearance of messagebox ?
I have got stuck due to this weird behavior.

Please help..

[high_flyer]

I take it that validateInput() is a slot.
Can you show which signals did you connect to this slot?

It looks like you have connected several objects to this slot, and any of these signals trigger the slot, and since you are doing a lot of checking on various widgets in the slots it self, it is very well possible that multiple conditions are true, and thus trigger multiple message boxes.

[ronak.vashi]

I take it that validateInput() is a slot.
Can you show which signals did you connect to this slot?

It looks like you have connected several objects to this slot, and any of these signals trigger the slot, and since you are doing a lot of checking on various widgets in the slots it self, it is very well possible that multiple conditions are true, and thus trigger multiple message boxes.

Hi,
validateInput() is not a slot but called by slot on_addButton_clicked() when "Add Button" is clicked. As shown in below code.

Here are few thing about application, which may help to understand the issue.
1). I have created QMainWindowGUI with various menu and submenus.
2). On clicking Add -> Expense -> Add Single Entry I am creating SingleEntry widget with QMainWindow as parent where in all text boxes, dropdown and button stuff comes into picture.
3). On this singleentry widget while performing validation this issue is occurring.
4). setupSingleEntry function is called when "Add Single Entry" submenu option is clicked.

Let me know if further input is required.

void SingleEntry::setupSingleEntry(){
    setupSingleEntrySignalSlots();
    populateExpenseCategory();
    ui->expenseDate->setDate(QDate::currentDate());
    ui->expenseDate->setMaximumDate(QDate::currentDate()); /* Restrict user from selecting Future Dates */
}
 
void SingleEntry::setupSingleEntrySignalSlots(){
    connect(ui->expenseClassCombo,SIGNAL(currentIndexChanged(int)),this,SLOT(on_expenseClassCombo_currentIndexChanged()));
    connect(ui->adjustmentCheckBox,SIGNAL(clicked()),this,SLOT(on_adjustmentCheckBox_clicked()));
    connect(ui->addButton,SIGNAL(clicked()),this,SLOT(on_addButton_clicked()));
}
 
void SingleEntry::on_addButton_clicked(){
    if(validateInput()){
        QMessageBox::information(0,"Success","Validation Successful");
    }
    else{
 
    }
}

void SingleEntry::setupSingleEntry(){
    setupSingleEntrySignalSlots();
    populateExpenseCategory();
    ui->expenseDate->setDate(QDate::currentDate());
    ui->expenseDate->setMaximumDate(QDate::currentDate()); /* Restrict user from selecting Future Dates */
}

void SingleEntry::setupSingleEntrySignalSlots(){
    connect(ui->expenseClassCombo,SIGNAL(currentIndexChanged(int)),this,SLOT(on_expenseClassCombo_currentIndexChanged()));
    connect(ui->adjustmentCheckBox,SIGNAL(clicked()),this,SLOT(on_adjustmentCheckBox_clicked()));
    connect(ui->addButton,SIGNAL(clicked()),this,SLOT(on_addButton_clicked()));
}

void SingleEntry::on_addButton_clicked(){
    if(validateInput()){
        QMessageBox::information(0,"Success","Validation Successful");
    }
    else{

    }
}

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[ronak.vashi]

Hi All,

Issue got resolved. Actual problem was in setupSingleEntrySignalSlots()function. I am connecting addButton with SLOT on_addButton_clicked() second time. First time it is already done Qt with in-built function connectSlotsByName(). So on_addButton_clicked() was getting called twice and hence appearance of messagebox .

Thanks for your suggestions.

Hi,
validateInput() is not a slot but called by slot on_addButton_clicked() when "Add Button" is clicked. As shown in below code.

Here are few thing about application, which may help to understand the issue.
1). I have created QMainWindowGUI with various menu and submenus.
2). On clicking Add -> Expense -> Add Single Entry I am creating SingleEntry widget with QMainWindow as parent where in all text boxes, dropdown and button stuff comes into picture.
3). On this singleentry widget while performing validation this issue is occurring.
4). setupSingleEntry function is called when "Add Single Entry" submenu option is clicked.

Let me know if further input is required.

void SingleEntry::setupSingleEntry(){
    setupSingleEntrySignalSlots();
    populateExpenseCategory();
    ui->expenseDate->setDate(QDate::currentDate());
    ui->expenseDate->setMaximumDate(QDate::currentDate()); /* Restrict user from selecting Future Dates */
}
 
void SingleEntry::setupSingleEntrySignalSlots(){
    connect(ui->expenseClassCombo,SIGNAL(currentIndexChanged(int)),this,SLOT(on_expenseClassCombo_currentIndexChanged()));
    connect(ui->adjustmentCheckBox,SIGNAL(clicked()),this,SLOT(on_adjustmentCheckBox_clicked()));
    connect(ui->addButton,SIGNAL(clicked()),this,SLOT(on_addButton_clicked()));
}
 
void SingleEntry::on_addButton_clicked(){
    if(validateInput()){
        QMessageBox::information(0,"Success","Validation Successful");
    }
    else{
 
    }
}

void SingleEntry::setupSingleEntry(){
    setupSingleEntrySignalSlots();
    populateExpenseCategory();
    ui->expenseDate->setDate(QDate::currentDate());
    ui->expenseDate->setMaximumDate(QDate::currentDate()); /* Restrict user from selecting Future Dates */
}

void SingleEntry::setupSingleEntrySignalSlots(){
    connect(ui->expenseClassCombo,SIGNAL(currentIndexChanged(int)),this,SLOT(on_expenseClassCombo_currentIndexChanged()));
    connect(ui->adjustmentCheckBox,SIGNAL(clicked()),this,SLOT(on_adjustmentCheckBox_clicked()));
    connect(ui->addButton,SIGNAL(clicked()),this,SLOT(on_addButton_clicked()));
}

void SingleEntry::on_addButton_clicked(){
    if(validateInput()){
        QMessageBox::information(0,"Success","Validation Successful");
    }
    else{

    }
}

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