QEvent::KeyPress at QTableWidget is occured only one time

[H-kata]

The first time, I will participate in this forum.
thank you.

my environment is as below.

OS: Windows 7 professional
Qt Version: 5.4

this is question of QTablWidget.

In the eventFileter function, when I press the key in the cell of QTableWidget,
QEvent::KeyPress is occured only one time(at the first time), and others is not.
but QEvent::KeyRelease is occcured every times.

code is as below.
@
bool ValueTable::eventFilter(QObject *obj, QEvent event)
{
bool rc = false;
QKeyEvent key;
QString valstr;
switch(event->type())
{
case QEvent::KeyPress:
key = (QKeyEvent *)event;
valstr = key->text();
qDebug() << "press:" << valstr;
rc = true;
break;
case QEvent::KeyRelease:
key = (QKeyEvent *)event;
valstr = key->text();
qDebug() << "release:" << valstr;
break;
@
here, ValueTable class is inherited QTableWidget.

For QEditLine, QEvent::KeyPress and QEvent::KeyrRelease is occured everytime when key pressed.

I need the numeric check of cell(if I press non-numeric key, the key is not appear at the cell.)
therefore, I need QEvent::KeyPress.

Please teach me. this is wrong coding or not.

[edit: added missing coding tags @ SGaist]

[alex_malyu]

1. Mark your code as code :)

It is hard to read otherwise.
Right most icon above editor.
@
bool ValueTable::eventFilter(QObject *obj, QEvent event)
{
bool rc = false;
QKeyEvent key;
QString valstr;
switch(event->type()) {
case QEvent::KeyPress:
key = (QKeyEvent *)event;
valstr = key->text();
qDebug() << “press:” << valstr;
rc = true;
break;
case QEvent::KeyRelease:
key = (QKeyEvent *)event;
valstr = key->text();
qDebug() << “release:” << valstr;
break;

.............
@

2. I guess problem is that after first keyPress arrived editing widget for that cell is created.
   And such widget ( like QLineEdit ) receives that event ( you see appropriate char typed for example ) and thus is not propagated.

So question is what you want to achieve and not how.

[H-kata]

Phenomenon of eventFileter function is as follows.

exsample:

I type next string. "ABC"
and show qDebug information

1. cell of QTableWidget

1. Keypress : A
   　　　press:A
   　　　release:A
   　　　
   　　　As return code of eventFilter is true, A is not appear of input cell area

2) Keypress : B
　　　　release:B

QEvent::keypress is not found.

3) Keypress : C
　　　　release:C

QEvent::keypress is not found.

2. QLineEdit ( same eventFilter function)

1) Keypress : A
　　　press:A
　　　release:A

As return code of eventFilter is true, A is not appear in input area

2) Keypress : B
　　　press:B
　　　release:B

As return code of eventFilter is true, B is not appear in input area

3. Keypress : C
   　　press:C
   　　release:C

As return code of eventFilter is true, C is not appear in input area

I can make numeric check(non-numeric char is not appear in input area) for QLineEdit.
but I can not make numeric check for QTableWidget.

[H-kata]

Sorry

it is hard to see.

I will check expression method of this .

I changed before message