Updating a view displayed by QTableView - qt

Question

I have a QTableView widget which is filled with the help of QStandardItemModel.
In every two seconds the function containing these two classes is called using QTimer and next 50 entries are given.
The function runs properly after every two seconds but the values arent refreshed in the window displayed.
Thanks in advance for any help.
Code :
void Box::create_frame()
{
k=0;
tablegroup = new QGroupBox(tr("Table"));
QVBoxLayout *layout = new QVBoxLayout;
table = new QTableView(this);
table->setUpdatesEnabled(false);
cout << "recent check" <<endl;
QStandardItemModel *mode = new QStandardItemModel(1,2,this);
mode->setHorizontalHeaderItem(0, new QStandardItem(QString("ID")));
mode->setHorizontalHeaderItem(1, new QStandardItem(QString("DATA")));
map<int,QString>::iterator it;
for(it=dataa.begin();it!=dataa.end();it++)
{
for(int i=0;i<=1;i++)
{
QStandardItem *item;
item = new QStandardItem();
item->setEditable(true);
if(i==0)
{
item->setData(((*it).first), Qt::DisplayRole);
mode->setItem(k,i,item);
}
else
{
item->setData(((*it).second), Qt::DisplayRole);
mode->setItem(k,i,item);
}
}
k++;
}
//setUpdatesEnabled(false);
table->setUpdatesEnabled(true);
cout << "create frame check" << endl;
table->setModel(mode);
layout->addWidget(table);
tablegroup->setLayout(layout);
}
QTimer *timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(refresh()));
timer->start(2000);
}
void dataThread::run()
{
boost::posix_time::seconds delay(2);
int g=0;
int h=50;
while(1)
{
while(g<h)
{
dataa.insert(pair<int,QString>(g+1,"HELLO"));
g++;
}
boost::this_thread::sleep(delay);
h=h+50;
}
}

Answer 1

First, it's late here so maybe I'm overlooking something but from your run loop, it doesn't look like you are actually adding any data to your table's model rather you're just adding entries to your dataa vector/list.
Maybe you should add this to your run loop
while( g < h )
{
dataa.insert(pair<int,QString>(g+1,"HELLO"));
QStandardItem *item;
item = new QStandardItem();
item->setEditable(true);
item->setData( g+1, Qt::DisplayRole );
// You need the model here
table->model()->setItem( h + g, 0, item );
item = new QStandardItem();
item->setData( "Hello", Qt::DisplayRole );
// You need the model again here
table->model->setItem( h + g, 1, item );
++g;
}
Again its late but I think you get the idea. You're currently not changing the model that your table is set to, rather just changing your dataa vector/list.