QList.replace continuous error

[Jonathan Maen]

Hello,

I've problems with my application, see, I've a MainWindow which contains a QListWidget and a variable QList<MyStruct> as public. There's a PushButton which opens a new Window, which I can add items to my QList and show them into my QListWidget, but the problem is that I've another PushButton, to edit an existing item, I seem to be allowed to parse the item (struct) successfully to the second Window, but trying to save that item back (replace) crashes my app with a debugger error that says "The inferior stopped because it received a signal from the Operating System".

This is the code I'm using;

//Edit Conversation
void MainWindow::on_pushButton_4_clicked()
{
 
    QModelIndexList indexes = ui->listTalk->selectionModel()->selectedIndexes();
    ConversationWindow *dlg = new ConversationWindow(this);
    dlg->isEdit = true;
 
    dlg->editConversation((quint8)indexes.at(0).row(), TalkList.at(indexes.at(0).row()));
 
    if (indexes.count() > 0)
        dlg->show();
}

//Edit Conversation
void MainWindow::on_pushButton_4_clicked()
{

    QModelIndexList indexes = ui->listTalk->selectionModel()->selectedIndexes();
    ConversationWindow *dlg = new ConversationWindow(this);
    dlg->isEdit = true;

    dlg->editConversation((quint8)indexes.at(0).row(), TalkList.at(indexes.at(0).row()));

    if (indexes.count() > 0)
        dlg->show();
}

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// Add or Edit existing conversation
void ConversationWindow::on_pushButton_2_clicked()
{
    ConversationItem item;
 
    if (!isEdit)
    {
        item.Key1_t = ui->lineEdit->text();
        item.Key2_t = ui->lineEdit_2->text();
        item.Key3_t = ui->lineEdit_3->text();
        item.getState = ui->checkBox->checkState();
        item.setState = ui->checkBox_2->checkState();
        item.getStateValue = ui->spinBox->value();
        item.setStateValue = ui->spinBox_2->value();
        item.JustAnswer = ui->checkBox_3->checkState();
        item.Answer_t = ui->lineEdit_4->text();
        item.isScript = ui->checkBox_5->checkState();
        item.Script_t << ui->textEdit->toPlainText();
 
        list->append(item);
 
        close();
 
        window->DrawTalk();
    } else {
        item.Key1_t = ui->lineEdit->text();
        item.Key2_t = ui->lineEdit_2->text();
        item.Key3_t = ui->lineEdit_3->text();
        item.getState = ui->checkBox->checkState();
        item.setState = ui->checkBox_2->checkState();
        item.getStateValue = ui->spinBox->value();
        item.setStateValue = ui->spinBox_2->value();
        item.JustAnswer = ui->checkBox_3->checkState();
        item.Answer_t = ui->lineEdit_4->text();
        item.isScript = ui->checkBox_5->checkState();
        item.Script_t << ui->textEdit->toPlainText();
 
        // I've tried with replace but same error appears.
        list->removeAt(editIndex);
        list->insert(editIndex, item);
 
        isEdit = false;
    }
}

// Add or Edit existing conversation
void ConversationWindow::on_pushButton_2_clicked()
{
    ConversationItem item;

    if (!isEdit)
    {
        item.Key1_t = ui->lineEdit->text();
        item.Key2_t = ui->lineEdit_2->text();
        item.Key3_t = ui->lineEdit_3->text();
        item.getState = ui->checkBox->checkState();
        item.setState = ui->checkBox_2->checkState();
        item.getStateValue = ui->spinBox->value();
        item.setStateValue = ui->spinBox_2->value();
        item.JustAnswer = ui->checkBox_3->checkState();
        item.Answer_t = ui->lineEdit_4->text();
        item.isScript = ui->checkBox_5->checkState();
        item.Script_t << ui->textEdit->toPlainText();

        list->append(item);

        close();

        window->DrawTalk();
    } else {
        item.Key1_t = ui->lineEdit->text();
        item.Key2_t = ui->lineEdit_2->text();
        item.Key3_t = ui->lineEdit_3->text();
        item.getState = ui->checkBox->checkState();
        item.setState = ui->checkBox_2->checkState();
        item.getStateValue = ui->spinBox->value();
        item.setStateValue = ui->spinBox_2->value();
        item.JustAnswer = ui->checkBox_3->checkState();
        item.Answer_t = ui->lineEdit_4->text();
        item.isScript = ui->checkBox_5->checkState();
        item.Script_t << ui->textEdit->toPlainText();

        // I've tried with replace but same error appears.
        list->removeAt(editIndex);
        list->insert(editIndex, item);

        isEdit = false;
    }
}

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I'm parsing the item index correctly checked with debug.
Please help me )

[ChrisW67]

Run the program in a debugger. When it crashes inspect the backtrace and the value of variables in use at the time.

What set "list" in ConversationWindow and what is its value? I am betting it is null or invalid.

[Jonathan Maen]

Run the program in a debugger. When it crashes inspect the backtrace and the value of variables in use at the time.

What set "list" in ConversationWindow and what is its value? I am betting it is null or invalid.

Thank you, the error was that I forgot to parse my list from MainWindow to EditWindow pointer variable.

I'm still learning second day with Qt & C++ lol.