[SOLVED] Insert row from Qtableview to another
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Well then, use a QTableWidget for the editing part, unless you have a special table in your database for that.
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i want to like the video,
https://www.youtube.com/watch?v=hkfmZwuc-YY
when the user entre data new row created
i can't post so i have modified this post
i can't control the addition of rows
her is my code
@#include "mainwindow.h"
MainWindow::MainWindow(QWidget *parent)
: QWidget(parent)
{tableNouveau = new QTableWidget; tableNouveau->setRowCount(1); tableNouveau->setColumnCount(5); QStringList list ; list <<"N°"<< "Désignation" << "Qte" << "Prix/U" << "Totale" ; tableNouveau->setHorizontalHeaderLabels(list); connect(tableNouveau,SIGNAL(cellClicked(int,int)),this,SLOT(test(int,int))) ; QVBoxLayout *layoutPrincipale = new QVBoxLayout ; layoutPrincipale->addWidget(tableNouveau); setLayout(layoutPrincipale);}
void MainWindow::test(int row, int col)
{
// if(!tableNouveau->item(row,col)->text().isEmpty())
if(col==1)
{
tableNouveau->insertRow(1);
}}
MainWindow::~MainWindow()
{}
@ -
When the user enters data, the QTableWidget will emit some "signals":http://qt-project.org/doc/qt-5.1/qtwidgets/qtablewidget.html#signals. You should create your own slot to handle the signal(s) that you want.
Connect the signal to your slot. Inside your slot, call call "QTableWidget::insertRow()":http://qt-project.org/doc/qt-5.1/qtwidgets/qtablewidget.html#insertRow
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i can’t control the addition of rows
her is my code
@
#include "mainwindow.h"MainWindow::MainWindow(QWidget *parent) : QWidget(parent) { tableNouveau = new QTableWidget; tableNouveau->setRowCount(1); tableNouveau->setColumnCount(5); QStringList list ; list <<"N°"<< "Désignation" << "Qte" << "Prix/U" << "Totale" ; tableNouveau->setHorizontalHeaderLabels(list); connect(tableNouveau,SIGNAL(cellClicked(int,int)),this,SLOT(test(int,int))) ; QVBoxLayout *layoutPrincipale = new QVBoxLayout ; layoutPrincipale->addWidget(tableNouveau); setLayout(layoutPrincipale); } void MainWindow::test(int row, int col) { // if(!tableNouveau->item(row,col)->text().isEmpty()) if(col==1) { tableNouveau->insertRow(1); } } MainWindow::~MainWindow() { }@
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What do you mean by "I can't control" ?
The code here will add a new row at row number 1 each time you click on a cell in the column 1.
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Then change 1 by tableNouveau->rowCount()
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Wow, this works
Now, what i want exactly is
the user isn't able to add row until he fills all cells
then he clicks "Key_Down" to add new row ( so her i will catch Qkeypressevent)
Plz give somme hints, so i will try to implement this my selef and render the code for you to correct me
thank's a lot SGaist
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i have tried to inherif from Qtablewidget and override keypressevent function
i have declared keypressevent function as signal
it works with this condition
@if ( event->key() == Qt::key_Down)@but when i add more conditions the app crached
her is my code
customtablewidget class @class MonTableauWidget : public QTableWidget
{
Q_OBJECT
public:
explicit MonTableauWidget(QWidget *parent = 0);signals:
void keyPressEvent(QKeyEvent *event);
public slots:};
@the main of classe @#include "montableauwidget.h"
MonTableauWidget::MonTableauWidget(QWidget *parent) :
QTableWidget(parent)
{}
@
and her is my main where i tried to connect siganl with slot @#include "dialog.h"
Dialog::Dialog(QWidget *parent)
: QWidget(parent)
{
layoutPrincipale = new QVBoxLayout(this);
QPushButton *button = new QPushButton("Clear",this);
tableau = new MonTableauWidget(this);
tableau->setRowCount(1);
tableau->setColumnCount(4) ;
QKeyEvent event(QEvent::KeyPress, Qt::Key_Down, Qt::NoModifier);QStringList list ; list << "Désignation" << "Qte" << "Prix/U" << "Total"; tableau->setHorizontalHeaderLabels(list); layoutPrincipale->addWidget(tableau); layoutPrincipale->addWidget(button); setLayout(layoutPrincipale); connect(tableau,SIGNAL(cellChanged(int,int)),this,SLOT(addrow(int,int))) ; connect(tableau,SIGNAL(keyPressEvent(QKeyEvent*)),this,SLOT(newRecod(QKeyEvent*))); connect(button,SIGNAL(clicked()),tableau,SLOT(clear()));}
Dialog::~Dialog()
{}
void Dialog::addrow(int row, int col)
{
if(col == 0)
tableau->insertRow(tableau->rowCount());
}
// her is the problem
void Dialog::newRecod(QKeyEvent *record)
{
QModelIndex index = tableau->currentIndex();
int row = index.column();
if(record->key() == Qt::Key_Down)
if(tableau->item(row,0)->text().isEmpty())
QMessageBox::information(this,"Empty Designation","Please Fill in the cell");
else
tableau->insertRow(tableau->rowCount());
}@
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keyPressEvent is not a signal, I would advise you to read its "documentation":http://qt-project.org/doc/qt-4.8/qabstractitemview.html#keyPressEvent
From your previous posts, and just to be sure, do you expect me to validate your work ?
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It is explained in the function documentation
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You can also use an event filter to catch that event, this really is up to you to choose the solution that meets your need
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i have implemented keypressEvent function
and it works perfectly, but when i start to somme conditions the programme crashes
her is my code @void MonTableauWidget::keyPressEvent(QKeyEvent *event)
{
int LastRow = this->rowCount();switch (event->key()) { case Qt::Key_Down : // the problem occured when i added the line below if(!this->item(LastRow,0)->text().isEmpty()) this->insertRow(this->rowCount()); break; case Qt::Key_Up : this->removeRow(1); break; case Qt::Key_0 : QMessageBox::information(this,"Row coutn",QString::number( LastRow)) ; break; default: QTableWidget::keyPressEvent(event); break; }}
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@removeRow(1); << What would happen if you don't have a row number 1 ?@
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i have used the debugger to determine what's the issue
and i think the issue is located her
because when i delete this line every thing works perfectly
@this->item(LastRow,0)->text().isEmpty() ;@this not refering to the customQtableWidget it's reffering to the
QtableWidgetItem objet
