Please take a look at your post above - do you really think we can read something meaningful out of it. Please use the <code> - tags to make it more readable and reduce your code as much as possible so only the problem and nothing else is in there.

@Babs Take a look at https://wiki.qt.io/Handling_Microsoft_Excel_file_format

@jeremy_k Unfortunately, my MouseArea that covers the entire view and finds the delegate does not detect row insertion. For example on the picture below two rows surrounded with green were inserted (with beginInsertRows/endInsertRows) and MouseArea stopped responding to the clicks on the last two rows surrounded with red: Below I provided the source code of the entire TableView as it is now in my project: TableView { id: table anchors.fill: parent columnSpacing: 5 rowSpacing: 3 clip: true property var columnWidths: [100, 80, 80, 20, 20, 20, 90, 90]; columnWidthProvider: function (column) { return columnWidths[column]; } property var rowHeight: 40 rowHeightProvider: function (column) { return rowHeight; } ScrollBar.horizontal: ScrollBar{} ScrollBar.vertical: ScrollBar{} ScrollIndicator.horizontal: ScrollIndicator { } ScrollIndicator.vertical: ScrollIndicator { } MouseArea { //id: ma anchors.fill: parent //hoverEnabled: true onClicked: { var index = Math.floor((mouse.y - table.originY) / (table.rowHeight + table.rowSpacing)); console.log("index:", index, " mouse: (", mouse.x, "," , mouse.y, ") table.origin: (", table.originX, ",", table.originY + ") table.content: (", table.contentX, ",", table.contentY + ")") var item = table.model.rowKey(index) if (item) window.openMarket(item) } } QtObject { id: enumSymbols property string spotAllowed: "S" property string marginAllowed: "M" property string isolatedMarginAllowed: "I" } delegate: DelegateChooser { role: "type" DelegateChoice { roleValue: "symbol" delegate: SymbolCell { item: model.item } } DelegateChoice { roleValue: "price" delegate: Text { horizontalAlignment: Text.AlignRight verticalAlignment: Text.AlignVCenter text: { var val = model.item[model.name]; return val ? val.toFixed(model.item.pricePrecision) : ""; } } } DelegateChoice { roleValue: "signal" delegate: Text { horizontalAlignment: Text.AlignRight verticalAlignment: Text.AlignVCenter text: TimeFormat.ago(model.item.signalTime, timeMachine.now) color: model.item.signalTime ? "black" : "gray" } } DelegateChoice { roleValue: "enum" delegate: Text { horizontalAlignment: Text.AlignHCenter verticalAlignment: Text.AlignVCenter text: model.display ? enumSymbols[model.name] : "" color: "#1e73cd" } } DelegateChoice { roleValue: "zparams" delegate: Text { property var zparams: model.item[model.name] horizontalAlignment: Text.AlignRight verticalAlignment: Text.AlignVCenter text: zparams ? "(%1, %2, %3)".arg(zparams.lag).arg(zparams.threshold.toFixed(2)).arg(zparams.influence.toFixed(2)) : qsTr("No") color: zparams ? "black" : "gray" } } DelegateChoice { roleValue: "check" delegate: CheckBox { checked: model.item[model.name]; onClicked: { table.model.beginUpdateItem(model.item) model.item[model.name] = checked table.model.endUpdateItem(model.item) } } } DelegateChoice { delegate: Text { verticalAlignment: Text.AlignVCenter text: model.item[model.name] } } } } If I refresh my TableView with beginResetModel/endResetModel MouseArea starts to work correctly.

my bad. I got answer in stack overflow The problem is caused by a naming conflict between the Button's display property and the role. The solution is to access the role through the model explicitly: delegate: Button { text: model.display }

adding onWidthChanged: forceLayout() with columnWidthProvider to TableView works

@jeanmilost Because of z ordering issues between delegates you will most likely need a popup.

Finally I searched a while by myself, and I think I may answer my own question. Although I couldn't completely resolve my issue, I noticed that the answer is hidden in the other MouseArea events. For example, by handling the onPressed event and adding the mouse.accepted in several key locations, I could let the component take care of the scrolling when the left mouse button is pressed, whereas the right click opens a popup menu. My conclusion is that there is no ready-to-use way, i.e there is no parameter to activate in the MouseArea itself which may resolve this kind of issue, and the solution is a good balance between activating different parameters in the different functions.

@Christian-Ehrlicher Thank you very much! It solved my problem perfectly :)

@fcarney I am new to Qt so don't anything about Loader and Can you please take a look at this question too: https://forum.qt.io/topic/111852/inconsistency-between-model-and-view-while-updating-qsqltablemodel-cell

@SebastianM great that you managed to figure it out. It's a bit difficult to read all this on a mobile screen so excuse my previous posts 🙈 Never the less, thanks for charing the answer

Cool, that's what I was looking for.

hi @dmitriano Window { visible: true width: 640 height: 480 title: qsTr("Hello World") TableView { anchors.fill: parent columnSpacing: 1 rowSpacing: 1 clip: true model: TableModel {} delegate: DelegateChooser { role: "type" DelegateChoice { roleValue: "lab2" delegate: Rectangle { Text { id: label2 text: "type delegate" } } } DelegateChoice { // roleValue: "String" // default delegate delegate: Rectangle { color: ms.containsMouse ? "#d2cc01" : "lightgrey" MouseArea{ anchors.fill: parent hoverEnabled: true id:ms } implicitWidth: defaultLabel.implicitWidth + 8 implicitHeight: defaultLabel.implicitHeight + 4 Text { id: defaultLabel text: tabledata } } } } } }

Well, your model is a "wrapper" around your data structure. Take a look at the Creating New Models in the Model View chapter of QT's documentation.

@Flesh Romha Korev on stackoverflow.com gave me this answer: onSortIndicatorColumnChanged: tableView.model = (sortIndicatorColumn == 0) ? myListModel1 : myListModel2 onSortIndicatorOrderChanged: tableView.model = (sortIndicatorColumn == 0) ? myListModel1 : myListModel2

but in MouseArea in row delegate styleData.row - available following code show right click menu for row in place where mouse clicked rowDelegate: Rectangle { id: rdRow height: 30 MouseArea { id: maRow anchors.fill: parent acceptedButtons: Qt.RightButton onClicked: { console.log("right click on row", styleData.row, mouseX, mouseY, tvMain.flickableItem.contentY) if ((styleData.row || (styleData.row === 0)) && (mouse.button === Qt.RightButton)) { currentRowIdxForMenu = styleData.row cmRow.x = mouseX cmRow.y = mouseY + styleData.row * rdRow.height - tvMain.flickableItem.contentY cmRow.open() } } } }

I have download the source code. And find no use of the param row. So it's redundant. Close the question, thanks!

Hi, Add a setter to your model that is Q_INVOKABLE and pass your query through it. Don't forget to add proper error checking to give feedback to your user if something goes wrong.

What was the problem ?

Hi, More likely that not all your database data are loaded in memory. You would have to call fetchMore however beware that if you have big tables it's going to cost you more in RAM.

Thank you for sharing!

@raven-worx said in QCompleter in QTableView: show always, even before user input: declare the m_Editor variable as mutable. This makes it compile (even though I'm not sure about the implications), but it doesn't help me: there is no Show event handled in editorEvent ever (tested with printf-debugging - yes, before the test for QLineEdit), I'm only getting Mouse events. @SGaist said in QCompleter in QTableView: show always, even before user input: Something like completer->popup()->show(); should do what you want. Nope, does not help. I figured (using qDebug, again), the place where I should put my popup-opening call is setEditorData. In there, I receive the QLineEdit and it's QCompleter: But I cannot make it show the popup. I tried now: completer->setCompletionPrefix(index.data(Qt::EditRole).toString()); completer->complete(); completer->popup()->show(); Note: Sometimes the popup is shown for a very short time, but immediately hides. When repeatedly entering & leaving edit mode this only works the first time.

Sounds great, but I get some runtime error: QPainter::begin: Paint device returned engine == 0, type: 2 QWidget::render: Cannot render with an inactive painter Edit: There is some modification on your suggested code neccessary: const QModelIndex& index = currentIndex(); // Render the pixmap QPixmap pixmap(visualRect(index).size()); //pixmap. render(&pixmap, QPoint(), visualRect(index)); // Create the drag QDrag* drag = new QDrag(this); drag->setPixmap(pixmap); ... But anyhow it renders the cell of one index above the selected one. Maybe that has something to do with the offset parameter (second one in render). Edit2: The proper QRect can be calculated with the height of the horizontal header: render(&pixmap, QPoint(0,0), visualRect(index).translated(0, horizontalHeader()->height() ));

Thanks everyone

@cheezus JavaScipt source doesn't leak now.but QML side still leaks.please .

@PhTe flickableItem is your friend here. It could be done as follows: //Inside some TableView flickableItem.onContentYChanged: { mirror.flickableItem.contentY = flickableItem.contentY //mirror = id of other table }

@yxlee Hi! Did I get this right: You've got a window. To that window you've added a QScrollArea with some content. You also added some other widgets to that window. Now you want these other widgets to move when you scroll inside the scroll area?

Thanx Ratzz.

Hi @Bioniwulf, Did you try creating them dynamically using addTab. Do it as soon you as you receive UDP data.

@_compiler Model *derived = static_cast<QSqlQueryModel*>(model); This isn't a valid cast because you can't implicitly cast to a derived type (see @mrjj's comment). Model *derived = static_cast<Model *>(model); Is valid but unsafe, as @SGaist pointed out. Ultimately, what is not working?