Connect to an existing SQL Server Database

Hi , i want to use an existing database from my project , but i don't know how.
I used QSqlDatabase, but no good result.
How to do it ??

Show the code you have.
Nobody can help you fix a problem if nobody can look what the problem might be.

Cheers,
_

you can connect to database with following code:

Quote:

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#include "mainwindow.h"
#include <QApplication>
#include <QtSql>
#include <QMessageBox>

bool createConnection()
{
QSqlDatabase db = QSqlDatabase::addDatabase("my driver QPSQL");
db.setHostName("");
db.setDatabaseName("my testdb");
db.setUserName("");
db.setPassword("");

if (!db.open()) {
QMessageBox::warning(0, QObject::tr("Database Error"),
db.lastError().text());
return false;
}
return true;
}

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

if (!createConnection())
return 1;

MainWindow form;
form.resize(500, 600);
form.show();
return app.exec();
}

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