Delete Key/Value Pair from configuration file qsetting - c++

Question

i am trying to search String in configuration file and if string match wants to delete key / value pair. i have getting qstringlist from file .
as far as my tried code is
int main(int argc, char *argv[])
{
QSettings* settings= new QSettings("/home/sidheshwar/Desktop/temp.txt", QSettings::IniFormat);
settings->beginGroup("Profiles");
const QStringList childKeys = settings->childKeys();
QStringList Keys;
QStringList values;
QString user="db-host";
QString tempUser;
foreach (const QString &childKey, childKeys)
{
Keys << childKey;
values << settings->value(childKey).toString();
}
for(int i=0;i< Keys.length();i++){
if(user == values.at(i)){
qDebug() << " keys" << Keys[i] << endl;
tempUser=Keys[i];
}
qDebug() << " tempUser" << tempUser << endl;
}
return 0;}
how can i use settings->remove(tempUser);

Answer 1

In the following example I show you an example of how to delete a data from the file that handles the configuration.
temp.ini before the execution.
[Profiles]
key1=db-host
key2=value2
key3=value3
main.cpp
#include <QCoreApplication>
#include <QSettings>
#include <QDebug>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QSettings* settings= new QSettings("temp.ini", QSettings::IniFormat);
settings->beginGroup("Profiles");
const QStringList childKeys = settings->childKeys();
QStringList Keys;
QStringList values;
QString user="db-host";
foreach (const QString &childKey, childKeys)
{
Keys << childKey;
values << settings->value(childKey).toString();
}
for(int i=0;i< Keys.length();i++){
if(user == values.at(i)){
qDebug() << " keys" << Keys[i];
settings->remove(Keys[i]);
}
qDebug() << Keys[i] << values.at(i);
}
return a.exec();
}
Output:
temp.ini after the execution
[Profiles]
key2=value2
key3=value3