How to get data from URL/.php file and display in my fields

[jsulm]

@Vineela If the server sends Json then you have to deal with Json. I gave you a link to documentation for accessing Json data using Qt, you wrote you didn't read it. Now it is time to read that documentation.

[Vineela]

@jsulm this is the output of my link , well from this i need to get those "GNL0001 & GNL002" and add them to my combo box ,so i hope you get what I'm saying please help me out with this.
[
{
"LeaderCode": "GNL0001"
},
{
"LeaderCode": "GNL0002"
}
]

[jsulm]

@Vineela Did you read the documentation?

AByteArray data = "YOUR JSON DATA";
QJsonDocument doc = QJsonDocument::fromJson(data);
QJsonArray array = doc.array();
QJsonObject object = array.at(0).toObject();
QString code = object["LeaderCode"].toString();

To add to QComboBox please refer to the documentation: http://doc.qt.io/qt-5/qcombobox.html#insertItem

[Vineela]

@jsulm well yes i've done and read the documentation but small thing is item which i added is blank.

[jsulm]

@Vineela First, you need to make sure you parsed Json correctly. The code I posted does not do that!
Then please show your current code (reading Json and putting entries into combo box).
One more question: are you sure you actually got the reply from server with Json?

[Vineela]

@jsulm

void MainWindow::datainDaHouse2(QByteArray data)
{
//first
 qDebug()<< "Jason value" +data;
 QJsonDocument doc = QJsonDocument::fromJson(data);
    QJsonArray array = doc.array();
    QJsonObject object = array.at(0).toObject();
    QString code = object["LeaderCode"].toString();

        ui->comboBox_54->insertItem(3,code);
     //second
        qDebug()<< "InsertCode" +code;
}

well this is my current code and my output for qDebug is,
//first
"Jason value<pre>[\n {\n "LeaderCode": "GNL0001"\n },\n {\n "LeaderCode": "GNL0002"\n }\n]</pre>"
//second here where my output getting blank
"InsertCode"

[jsulm]

@Vineela Your Json string is invalid as it contains <pre></pre>. You need to remove these HTML tags first.

data = data.replace("<pre>", "").replace("</pre>", "");
QJsonDocument doc = QJsonDocument::fromJson(data);
QJsonArray array = doc.array();
QJsonObject object = array.at(0).toObject();
QString code = object["LeaderCode"].toString();

ui->comboBox_54->insertItem(3,code);
//second
qDebug()<< "InsertCode" +code;

[Vineela]

@jsulm yes i got this "InsertCodeGNL0001" but wat abt GNL0002??

[jsulm]

@Vineela Come on! If you get GNL0001 via array.at(0) then you get GNL0002 via array.at(1)...

[Vineela]

@jsulm i know but can't i add it within this line
QJsonObject object = array.at(0).toObject(); so i have to write another object2

[jsulm]

@Vineela

object = array.at(1).toObject();
QString code = object["LeaderCode"].toString();
ui->comboBox_54->insertItem(3,code);
//second
qDebug()<< "InsertCode" +code;

[Vineela]

@jsulm well I've added this
for(int i=0 ;i<array.size();i++){
QJsonObject object = array.at(i).toObject();
} it worked

[Vineela]

@jsulm object = array.at(1).toObject();
I've done this too but got only second one so.

[jsulm]

@Vineela said in How to get data from URL/.php file and display in my fields:

I've done this too but got only second one so

Yes, if you do this in a loop then you need to use index (i in your case) instead of fix numbers.

[Vineela]

@jsulm well thank u so much for your help ,I've done it using for loop it worked.

[Vineela]

@jsulm can u suggest here how to make it in ascending order???

[jsulm]

@Vineela

for(int i = array.size() - 1 ; i >= 0; --i) {
    QJsonObject object = array.at(i).toObject();
}

[Vineela]

@jsulm thanks you've saved my day :D it worked fine.

[Vineela]

@jsulm my data is getting repeated once i come back is that bcoz of my for loop?

[jsulm]

@Vineela Not sure what you mean?
You mean if you get new data and add new entries to your combo box you then have same values several times?
In this case you need to filter new values and only add values which are not yet in the box.