i can't connect to Azure database in QT

My database is on an Azure server. And I'm trying to connect to it via an ODBC driver (by the way, I tried to install it manually, but I couldn't get it. They say it's built in). I get the following error: "Data source not found and no default ODBC driver specified: Unable to connect"

dataBaseKnowFood = QSqlDatabase::addDatabase("QODBC");
QString connectString = QStringLiteral("myconnectionstring");
dataBaseKnowFood.setDatabaseName(connectString);
dataBaseKnowFood.setPassword("dgf");
dataBaseKnowFood.setUserName("gidgfsg");
if (!dataBaseKnowFood.open())
{
    QMessageBox::critical(this, "Programm", dataBaseKnowFood.lastError().text());
}

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