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POQItemDelegate setModelData in QTreeWidget is not called
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14561316
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1
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2
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2013-01-28T11:45:23.330
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2015-10-30T18:10:32.450
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152508
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1126
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text
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<p>I am trying to set delegate to my QTreeWidget. The problem is that delegate setModelData is never called. createEditor and setEditorData are called.</p> <p>Since the editor that I create is simple QLineEdit, commitData() signal doesn't have to be emitted. Also I tried to emit this signal just in case is needed , when editLine editingFinished() was emitted, but that doesn't solve the problem. As I understand documentaion say that for simple widgets like QLineEdit setModelData should be called without emitting commitData signal, so the following code should work :</p> <pre><code>MyDlg::MyDlg() { mTreeWdg->setItemDelegate(new TestDelegate( this )); } MyDlg::OnTreeItemDoubleCliked(QTreeeWidget* item,int column) { if(column != 1) return; item->setFlags(Qt::ItemIsEditable); mTreeWdg->editItem(item,column); } TestDelegate::TestDelegate(QObject *parent ) :QItemDelegate(parent) { } QWidget* TestDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const { if(index.column() == 1) // value column { QLineEdit* edit = new QLineEdit(parent); return edit; } else return 0; // no editor attached } void TestDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const { if(index.column() == 1) { QLineEdit* edit = static_cast<QLineEdit*> (editor); edit->setText("damn"); } } void TestDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,const QModelIndex &index) { if(index.column()!= 1) return; } void TestDelegate::updateEditorGeometry(QWidget *editor,const QStyleOptionViewItem &option, const QModelIndex &index) const { editor->setGeometry(option.rect); } </code></pre>
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<c++><qt4>
Title
QItemDelegate setModelData in QTreeWidget is not called
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1. COSorry problem solved. setModelData was not declared as const
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  POQItemDelegate setModelData in QTreeWidget is not called
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  USuser152508
2. COWow. I've been trying to fix my QLineEdit delegate for about an hour...Two const definitions was all that was missing xD THANK YOU!
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