问：如何打开SQL Compact Server文件.sdf

Question

我正在尝试使用Qt打开SQL Compact服务器文件.sdf。 我有以下代码：

QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
db.setDatabaseName("C:\\testresults.sdf");
bool Success = db.open();

sprintf(writeToMonitorBuffer, "dblastError = %s", (const char *)db.lastError().text().toLatin1());
writeToMonitor(writeToMonitorBuffer);

sprintf(writeToMonitorBuffer, "db.open(): Success/Fail = %s", Success ? "Pass" : "Fail");
writeToMonitor(writeToMonitorBuffer);

我收到错误消息：

dblastError = [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified QODBC3: Unable to connect

我得到了：

db.open(): Success/Fail = Fail

我该如何解决这个问题？

Answer 1

\用于C ++中的escape sequences，所以你需要这样做：

db.setDatabaseName("C:\\testresults.sdf");