ODBC to mssql2008express

[LordQt]

I connect it from my program.

I solve it. It must be

static bool createConnection(QString driver= "QODBC",
                             QString connectionstr="DRIVER={SQL Server Native Client 10.0};"
                             "Server=IP\\Instance;Trusted_Connection=yes;"
                             "Database=Databasename;Uid="";Pwd="";"
                            )
{
    QSqlDatabase db = QSqlDatabase::addDatabase(driver);
    db.setDatabaseName(connectionstr);
    if (!db.open()) {
        QSqlError err =  db.lastError ();
        QMessageBox::information(0, QObject::tr("Cannot open database"), err.text());
        return false;
    }
     return true;
 
}

static bool createConnection(QString driver= "QODBC",
                             QString connectionstr="DRIVER={SQL Server Native Client 10.0};"
                             "Server=IP\\Instance;Trusted_Connection=yes;"
                             "Database=Databasename;Uid="";Pwd="";"
                            )
{
    QSqlDatabase db = QSqlDatabase::addDatabase(driver);
    db.setDatabaseName(connectionstr);
    if (!db.open()) {
        QSqlError err =  db.lastError ();
        QMessageBox::information(0, QObject::tr("Cannot open database"), err.text());
        return false;
    }
     return true;
 
}

To copy to clipboard, switch view to plain text mode 

And you have to install the native sql client.
Yes I use Qt4.5.0 ans compile it with the ODBC flag etc..

thanx