QSQL double insert

[abenchaaben]

Hi,

I'm working on a project and i'm using Qsql for the first time. I'm trying to insert a data into my database. The problem is that the Click Method that i use to do the insert, i have a messagebox that inform the user that the process is done. With that evry time i click process, i have a double insert into the database. But when i comment the messageBox code, evry thing go well.

void MainFrame::OnProcessStain()
{
QSqlQuery qry;
	qry.prepare("INSERT INTO project (user, ) " "VALUES (?)");
	qry.addBindValue(username);
	qry.exec();
 
	QMessageBox msg1(QMessageBox::Information,"About","Thank you!!!",QMessageBox::Ok);
	msg1.setFixedSize(720,720);
	QPixmap image1 = QPixmap("zicon1.png");
	msg1.setIconPixmap(image1);
	msg1.show();
	msg1.exec();
	QCoreApplication::exit();
}*

void MainFrame::OnProcessStain()
{
QSqlQuery qry;
	qry.prepare("INSERT INTO project (user, ) " "VALUES (?)");
	qry.addBindValue(username);
	qry.exec();

	QMessageBox msg1(QMessageBox::Information,"About","Thank you!!!",QMessageBox::Ok);
	msg1.setFixedSize(720,720);
	QPixmap image1 = QPixmap("zicon1.png");
	msg1.setIconPixmap(image1);
	msg1.show();
	msg1.exec();
	QCoreApplication::exit();
}*

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Any Help Please.