QComboBox in QTreeWidget

Hi, all.

I inserted a QComboBox using setItemWidget() in QTreeWidget.

The issue I am having is when I click on the QComboBox, the list drops down and then immediately closes again, so it is impossible to select an item on the list.

Thanks in advance for any suggestion.

Could you please show some source code?

Quote:

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Originally Posted by e8johan

Could you please show some source code?

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Code:

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// TRW_OHEDIT is a Object name of QTreeWidget.
// m_name is a string.
void BS_OHEdit::SetTreeViewOfEdit2()
{
	QTreeWidgetItem *name = new QTreeWidgetItem(TRW_OHEDIT);
	QTreeWidgetItem *byte = new QTreeWidgetItem(name);
	QTreeWidgetItem *format = new QTreeWidgetItem(name);
	QTreeWidgetItem *bit1_4 = new QTreeWidgetItem(name);
	QTreeWidgetItem *req = new QTreeWidgetItem(name);
	QTreeWidgetItem *bit5_8 = new QTreeWidgetItem(name);
	QTreeWidgetItem *channel = new QTreeWidgetItem(name);
 
	cb_edit1 = new QComboBox(this);		// format
	cb_edit2 = new QComboBox(this);		// request
	cb_edit3 = new QComboBox(this);		// channel
 
	cb_edit1->setFixedSize(70, 35);
	cb_edit1->addItems(QStringList() << "Encode" << "Binary");
	cb_edit2->setFixedHeight(35);
	cb_edit2->addItems(MakeNameOfK1("req"));
	cb_edit3->setFixedSize(200, 35);
	cb_edit3->addItems(MakeNameOfK1("channel"));
 
	le_edit1 = new QLineEdit(this);	// bits 1-4
	le_edit2 = new QLineEdit(this);	// bits 5-8
 
	le_edit1->setFixedSize(50, 35);
	le_edit1->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
	le_edit1->setInputMask("BBBB;0");
	le_edit1->setEnabled(false);
	le_edit2->setFixedSize(50, 35);
	le_edit2->setAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
	le_edit2->setInputMask("BBBB;0");
	le_edit2->setEnabled(false);
 
	name->setText(0, m_name);
	byte->setText(0, "Byte");				byte->setText(1, NameOfByte(m_name));
	format->setText(0, "Format");		TRW_OHEDIT->setItemWidget(format, 1, cb_edit1);
	bit1_4->setText(0, "Bits 1-4");		TRW_OHEDIT->setItemWidget(bit1_4, 1, le_edit1);
	req->setText(0, "Request");			TRW_OHEDIT->setItemWidget(req, 1, cb_edit2);
	bit5_8->setText(0, "Bits 5-8");		TRW_OHEDIT->setItemWidget(bit5_8, 1, le_edit2);
	channel->setText(0, "Channel");	TRW_OHEDIT->setItemWidget(channel, 1, cb_edit3);
 
	connect(cb_edit1, SIGNAL(currentIndexChanged(QString)), this, SLOT(cb_format_edit2_currentIndexChanged(QString)));
	connect(cb_edit2, SIGNAL(currentIndexChanged(int)), this, SLOT(cb_req_edit2_currentIndexChanged(int)));
	connect(cb_edit3, SIGNAL(currentIndexChanged(int)), this, SLOT(cb_channel_edit2_currentIndexChanged(int)));
	connect(le_edit1, SIGNAL(textChanged(QString)), this, SLOT(le_bit14_edit2_textChanged()));
	connect(le_edit2, SIGNAL(textChanged(QString)), this, SLOT(le_bit58_edit2_textChanged()));
 
	TRW_OHEDIT->expandAll();
}

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Thank you for your reply.