QDate matching not working Qt5 always getting false

rkt1989

I am trying to match which date is greater than another

I am getting system date using following code

QDate systemDate = QDate::currentDate();
        QString date1 = systemDate.toString("yyyy/MM/dd");
        QDate systemDate1;
        systemDate1.fromString(date1,"yyyy/MM/dd");

and system event log date

QString xml = getStringFromEvent(publisherMetaData, nextEvents[i], EvtFormatMessageXml);
                //winEventList.append(eventInfo);
                QDomDocument dom;
                dom.setContent(xml);
                QString dateTime = dom.elementsByTagName("TimeCreated").at(0).toElement().attribute("SystemTime");
                QString date = dateTime.section("T", 0, 0);
                QDate logDate;
                logDate.fromString(date,"yyyy/MM/dd");

but when i try to compare using following code i always get false even when system date < log date

if(logDate > systemDate1){
                    clockChanged = true;
                    break;
                }

can anyone suggest some modification thank you.

KroMignon

@rkt1989 said in QDate matching not working Qt5 always getting false:

logDate.fromString(date,"yyyy/MM/dd");

Are you sure date contains a valid date string?
Check if logdate.isValid() returns true.

rkt1989

qDebug("Hello "+date.toLatin1()+"");

gives me following output
Hello 2020/09/10
Hello 2020/09/10
Hello 2020/09/09

qDebug("Hello "+date1.toLatin1()+"");

gives me following output

Hello 2020/09/10

rkt1989

@KroMignon

logdate.isValid()

is returning false what should i do

Christian Ehrlicher

@rkt1989 said in QDate matching not working Qt5 always getting false:

what should i do

think about why it's the case... Did you check the string?

rkt1989

@Christian-Ehrlicher ok i fixed that with

QDate logDate = QDate::fromString(date,"yyyy-MM-dd");

Christian Ehrlicher

@rkt1989 Then please mark this topic as solved.