QStringListModel doesn't update when QStringList is updated

[nymar]

Hi,
I would like help about these points
1/ I want to use the append in my method so i can add "Belgique" for ex. to my list but when i do like this nothing happens when i push the button Add....this my code and window new.jpg

#include"scheduletable.h"  
 
#include "ui_scheduletable.h"  
#include<QStringListModel>  
ScheduleTable::ScheduleTable(QWidget*parent):  
QWidget(parent),  
ui(newUi::ScheduleTable)  
{  
ui->setupUi(this);  
QStringListlistePays;  
listePays<<"France";  
QStringListModel*modele=newQStringListModel(listePays);  
ui->listView->setModel(modele);  
connect(ui->addFrame,SIGNAL(clicked()),this,SLOT(add_Frame()));  
}  
voidScheduleTable::add_Frame()  
{  
   listePays.append("Belgique");  
 
}  
ScheduleTable::~ScheduleTable()  
{  
deleteui;  
}

#include"scheduletable.h"  
  
#include "ui_scheduletable.h"  
#include<QStringListModel>  
ScheduleTable::ScheduleTable(QWidget*parent):  
QWidget(parent),  
ui(newUi::ScheduleTable)  
{  
ui->setupUi(this);  
QStringListlistePays;  
listePays<<"France";  
QStringListModel*modele=newQStringListModel(listePays);  
ui->listView->setModel(modele);  
connect(ui->addFrame,SIGNAL(clicked()),this,SLOT(add_Frame()));  
}  
voidScheduleTable::add_Frame()  
{  
   listePays.append("Belgique");  
  
}  
ScheduleTable::~ScheduleTable()  
{  
deleteui;  
}

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[alizadeh91]

you can use model->setData() method

Or you can use model->setStringList(listePays) after listePays.append() method

[wysota]

QStringListModel stores a copy of the string list you pass it. Thus if you add a new entry to the original string list, the model does not get updated. Since QStringListModel is read-only, the only solution is to set a new string list on it again but then you'll lose things such as selection and scrolling in the view because the model will be reset. A more proper solution would be to use QStandardItemModel and add a new entry directly to the model with QStandardItemModel::appendRow().

[nymar]

Thx for helping guyz the solution is

void ScheduleTable::add_Frame()
{
   listePays.append("Belgique");
    modele->insertRows(0, 1);
    modele->setData(modele->index(0), "Belgique");
}

void ScheduleTable::add_Frame()
{
   listePays.append("Belgique");
    modele->insertRows(0, 1);
    modele->setData(modele->index(0), "Belgique");
}

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---

Added after 59 minutes:

but i have a question how can i put the new item at the end of the list ? i couldn't use currentIndex()

[alizadeh91]

Plz see wysota post. For understanding concept of model/view in Qt see this: http://qt-project.org/doc/qt-4.8/mod...ogramming.html -> this is very helpful and complete