[Qt-interest] Connection string for QODBC cannot use "Data Source"?

[Jonathan Wong]

Using QODBC like this...

  QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
  db.setDatabaseName(connectionString);

Why does it fail when I use a connection string containing the words "Data Source"? Why does it
work when I replace that with "DSN"?

Provider=MSDASQL.1;Persist Security Info=True;Data Source=MyDataSourceName

Provider=MSDASQL.1;Persist Security Info=True;DSN=MyDataSourceName