7. This class is used to provide standard tables that were previously provided by the QTable class, but using the more flexible approach provided by Qt's model/view architecture. Here's how I do it. This will be demonstrated in section 2. The selection model emits signals to indicate changes in the selection. When you call setModel () on the view, your locally allocated QItemSelectionModel is getting replaced by one created by the view. Then you just connect the signal from boxTable to your slot, which will notify you when the checkbox state is changed. Detailed Description. All tables from sqlite database. [signal] void QTableWidget:: cellDoubleClicked (int. The QTableWidget class provides an item-based table view with a default model. If you want a table that uses your own data model you should use QTableView rather than this class. For using connect, according to your implementation, you want to connect one signal and one slot, that consumes that signal. I have a QTableView and i have set as its model a class inherited from QAbstractTableModel. selectionModel - 24 examples found. But I agree it would make sense to have signals for more detailed user actions in QTableView itself. Scenario 2. This way you can use the signal QTableWidget::itemChanged (QTableWidgetItem* item) connected to an slot that will first block the signals of the table, then change the item, and then unblock the signals. More. This signal is only emitted when mouseTracking is turned on, or when a mouse button is pressed while moving into an item. This signal is emitted by insertRowIntoTable () before a new row is inserted into the currently active database table. The following example creates a view based on an SQL data model: QTableView*view =newQTableView; view->setModel(model); view->show(); If the model is a read-write model (e. tableview=QTableView () self. Presumably using the lanbda function changes the references you are. ui I query a sql db and display the data in a Qtableview. my_controller = MyController (MyModel (sys. . 9 on linux. Add a comment. These objects are the actual data items in the. See also deleteLater(). I need to show a find dialog after pressing Ctrl+F in QWidget, which contains a QTableView. Since QTableView comes from QAbstractItemView, if the editing mode is triggered by other way (such as mouse double click), the program will run default QAbstractItemView::edit instead of A::edit. Note: This is a private signal. I inserted a QTableView in my GUI and set selectionMode = SingleSelection , selectionBehavior = SelectRows. QListView. 1. ui->tableView->setItemDelegateForColumn (2, dgtComboDelegate); If you wanted that to happen for a single cell, that's when you need to test on the index. I use the following connects for this purpose in my QMainWindow. A QHeaderView displays the headers used in item views such as the QTableView and QTreeView classes. 0] void QSortFilterProxyModel:: autoAcceptChildRowsChanged (bool autoAcceptChildRows) This signals is emitted when the value of the autoAcceptChildRows property is changed. enum EditTrigger. doubleclick on an item and the slot gets the data for the row and loads into the dialog for editing. I'm able to use the keys in the subclass (as i can print when i press the up or down arrow) but having problems making the selected row move up and down. You have however to be careful about the argument types of function on_change. I can check and uncheck these boxes but it seems like it doesn't emit any signal when status changes. rowCount ()): data. qt. It is built on top of the lower-level QSqlQuery and can be used to provide data to view classes such as QTableView. c3-bindings. If the model executes fetchMore and, if more rows are inserted, it will emit the rowsAboutToBeInserted and rowsInserted signals before and after the operation. h) file, which looks like Then i added the remaining codes in cpp file which looks likeThe PySide. QTableWidget provides appropriate signals for each event such as change of selection, click, double click, etc. Signals ¶ def cellActivated. signals: void closing(); protected: void closeEvent(QCloseEvent *event)override; } // In cpp v. Free Indoor Cycling Software - Moderators @Rodrigo B. QSqlRecord. Standard widgets use data that is part of the widget. This is the old way of using signals and slots. one scroll bar for two qabstractItemModel. I thought about the following solutions: Try to make dataChanged signal behave asynchronusly. When one of the QTableView 's QModelIndex is clicked I want to select an entire row of the same-row-indexes. For example: treeView-> setSortingEnabled(true);. The title can be styled using the. List of all members, including inherited members Properties columnCount : int rowCount : int Public Functions Public Slots Signals Protected Functions Reimplemented Protected Functions Detailed Description The solution was derive my own TableView class from QTableView. I've done these things with doubleClicked signals but I still want to display data to QLineEdit by both 2 ways and then close QTableView dialog right after pressing Enter key or double clicking. Extending QML - Adding Property Bindings. minimum signal for scrollbars. QSqlTableModel is a high-level interface for reading and writing database records from a single table. class MyView : public QTableView {. signals;Detailed Description. This means that if I click in a cell, the entire row is selected (and is highlighted). I have tried running qmake and rebuilding the project. If i use clicked() signal of button, then i cannot pass the index in the corresponding slot because clicked signal for qpushbutton is of following form: void QAbstractButton::clicked ( bool checked = false ) and i need index to identify the row. Pandas. vectorize (QStandardItem) (data) # generate. I use a model to display items in this list. So, for example, if a cell is changed. We do not modify any items in the model, but instead select a few items that the view will display at the top-left of the table. Standard widgets are not designed for separating data from views and this is why Qt 4 has two different types of widgets. QModelIndex QAbstractItemView::currentIndex () const. 1. 2. 3, setting a stylesheet on a QLabel automatically sets the QFrame::frameStyle property to QFrame::StyledPanel. [signal] void QTableWidget:: cellActivated (int row, int column) This signal is emitted when the cell specified by row and column has been activated. # Connect filter signals get_app(). vectorize (QStandardItem) (data) # generate QStandardItem-Array. You know, you don't have to create a QTableView to do this either. , The right click should launch a context menu, and the left should open another process. But now I cannot get similar code to work. tableview. QTableView with numpy array. Specifically, there exists a function start_guest_run that enables running the Trio event loop as a “guest” inside another event loop - Qt’s in our case, standing in contrast to asyncio’s. Use the Qt signal map thingy to attach some small variation of data to a signal. However, it seems only when A::edit are directly called, the program can get in. You have to work with this model to retrieve the data. These are the top rated real world Python examples of PyQt5. And as I said: no layout. The solution I've come up with to avoid breaking encapsulation too much is. [COLS]; //holds text entered into QTableView signals: void editCompleted(const QString &); };. I suspect the default connection between dataChanged. Standard widgets use data that is part of the widget. connect (table_m, SIGNAL ( activated (const QModelIndex&)), this, SLOT ( RowSelected (const QModelIndex&))); // this works fine, slot function is called when key ENTER is pressed, I get correct index in. 3, setting a stylesheet on a QLabel automatically sets the QFrame::frameStyle property to QFrame::StyledPanel. ui and a profilesearch. Ok,so i have solved this problem like this: First, you must obtain QItemSelectionModel !after! the table was filled: QItemSelectionModel *select = ui->tableView->selectionModel (); Then connect SIGNAL "selectionChanged" with you own SLOT function: connect (select, SIGNAL (selectionChanged. When. I want to connect my slot to a signal ( selection changed or another signal) by changing the selected row. signal on the table header and setting a timer running. enum PaintDeviceMetric. Also the new connection is faster. h) file, which looks like Then i added the remaining codes in cpp file which looks likeThe QHeaderView class provides a header row or header column for item views. enum RenderFlag. Removes all row and column spans in the table view. [signal, since 6. Solved Qtableview editable cells. Note that the destroyed() signal will be emitted even. I did a tiny experiment by removing the line that remove rows on the table and: Keeping the line self. A QHeaderView displays the headers used in item views such as the QTableView and QTreeView classes. To make it editable, my code has void Case_Adjustment::on_. ThanksSee Customizing QDockWidget for an example. This may be the information you need. I have a QTableView along with a refresh button and some other buttons as shown below: I have a function which refresh the table. Signals and Slots; Creating a Dialog Application; Displaying Data Using a Table Widget; Displaying Data Using a Tree Widget; Using . Qt QTableView performance 60 fps. Hi, I have a weird situation. If the items do. QTableView and QTreeView have a sortingEnabled property that controls whether the user can sort the view by clicking the view's horizontal header. 21. Re: QTableView checkboxes. The data in some of the models are dependent on data in other models. Add a comment. A QTableView implements a table view that displays items from a model. You need to remove the variable names from the SIGNAL and SLOT macros: connect ( table->selectionModel (), SIGNAL (selectionChanged (const QItemSelection &, const QItemSelection &)), SLOT (slotLoadTransaction (const QItemSelection &, const QItemSelection &)) ); Connect is essentially looking at the function signature. To make it editable, my code has void Case_Adjustment::on_. I would like to modify any cell (except header) within given QTableView. qtableview. column () and index. clicked. solution was derive my own TableView class from QTableView. This operation actually just makes the row's section resizes. h) file, which looks like Then i added the remaining codes in cpp file which looks likeYou clearly are able to emit the signal - the real problem is the updating of views, which may be caused by something else entirely. emit() create new model elements that have QPersistentModelIndex associated that are not thread-safe and that Qt monitors its creation to warn its misuse as in this case since modifying that element is unsafe since it implies. QTableView doesn't have it directly, but QTableView has model property of type QAbstractItemModel which has this kind of signals. SIGNAL () and QtCore. something like self. The. In the profilesearch. rivci. QAbstractItemView class is the base class for every standard view that uses a QAbstractItemModel. There are 2 ways. The PySide. Returns true if there are any items selected in the row with the given parent. I figured out how to get signal when the selection has changed, but i need whether there is a selected row: QItemSelectionModel *sm = ui->tableView_partners->selectionModel (); connect (sm, SIGNAL (currentRowChanged (QModelIndex,QModelIndex)), this, SLOT (enableDeleteButton ())); void. on_change). Re: QTableView checkboxes. But it seems that the connected function self. I have setup a window with an openGL widget and a QTableView. tableView = QTableView() tableView. As I want to catch the table's selectionChanged event, I have made a class "Tabla" subclassed from QTableView. Detailed Description. bool QItemSelectionModel:: rowIntersectsSelection ( int row, const QModelIndex & parent = QModelIndex ()) const. Improve this answer. . QTableView ([ parent=None]) Constructs a table view with a parent to represent the data. Python QTableView. rows += self. currentIndexChanged. For instance: model = tableView. How do you get ROW numbers in QTableView using QStandardItemModel I used below selection model and behavior as. Then you just connect the signal from boxTable to your slot, which will notify you when the checkbox state is changed. It is the places which wish to be notified of the signal to act on it which should connect their slot. 9. g. setModel(model) selectionModel = table. Here below is my original code that does not allow for any changes: import sys import csv from datetime import datetime, timedelta import calendar from PyQt5. In each row a checkbox is placed in the first column and when it is checked or unchecked, i want a pyqtsignal CheckBoxValue be emitted to MyTable. – Gerges. This topic has been deleted. JonB @jsulm last edited by JonB . I have a small dialog When i click this push button, my code shows the following QTableview with the help of QSqlTableModel I wanted this table view to be editable. h) file, which looks like Then i added the remaining codes in cpp file which looks likeclass MyView : public QTableView {. ; the manager of views connects to these signals; when any view emits such a signal the manager of views calls a slot on all the. textChanged. e. To know when a cell has been left, we store each entered row and column and decide when a leave event. See Customizing QFrame for an example. column – int. @Rodrigo-B said in Reordering rows of QTableView with drag and drop: Instead, Lion overwrites Gazelle in the second row and remains in the first row. [signal] void QAbstractItemDelegate:: sizeHintChanged (const QModelIndex &index) This signal must be emitted when the sizeHint() of index changed. All item models are based on the QAbstractItemModel class. QtGui. selectionModel() The table view’s default selection model is retrieved for later use. I am inserting a QPushButton in the last column of a QTableview. You can check if the cell where data has changed is the same than the currentIndex. Although these classes are ready-to-use. column () and index. We can connect the selectionChanged() signal to a slot, and examine the items in the model that are selected or deselected when the selection changes. This class is used to provide standard tables that were previously provided by the QTable class, but using the more flexible approach provided by Qt's model/view architecture. From there you can look up the row. All another signals from models will not work if user does not change anything in cell, but delegate is closed everytime when editing is finished. QAbstractItemView is an abstract class and cannot itself be instantiated. My main program calls a function that runs a query using SQLAlchemy, which returns a list of lists that represent rows in the table as self. Model/View is a technology used to separate data from views in widgets that handle data sets. qt. Extending QML - Using Custom Property Types. model = TableModel(8, 4, app) table = QTableView(0) table. The QTableView class is one of the Model/View Classes and is part of Qt’s model/view framework . Example: Click a cell, type '123', cell is still in edit mode waiting for more text, dataChanged is emitted and the '123' is. isSelectionRectVisible # Return type: bool. QStyledItemDelegate is the default delegate for all Qt item views, and is installed upon them when they are created. All item models are based on the QAbstractItemModel class. If you want a table that uses your own data model you should use QTableView rather than this class. The table implicitly has a selction model, get with <code>tableView->selectionModel ()</code>, you don't need to create a new one. I derived a model from QAbstractTableModel and now I want to notify, that the data of a whole row has been changed. enum DropIndicatorPosition. 4. PyQt5 provides us with the QTableView widget which can be used to create such spreadsheets and tables. Iterate over the items in that row and set background for each item. We’re importing the bare minimum of widgets required to create the PyQt6 GUI window and the QTableView widget. Re: Detecting row selection in a QTableView. You. cbx. I can show the QMessageBox after pressing Ctrl+F with the following code: . signals: void closing(); protected: void closeEvent(QCloseEvent *event)override; } I have added the above code in (. With QTableView only 2D arrays can be displayed, however if you have a higher dimensional data structure you can combine the QTableView with a tabbed or scrollbar UI, to allow access to and display of these higher dimensions. In the case of QTableView, QListView and QTreeView have the method called selectionModel() that returns a model that tracks the selected elements, and that model has a signal called selectionChanged() that is issued. I want to select data from QTableView by pressing Enter key and display it in QLineEdit. So, one of the solutions how to capture the current row, while navigating through the table is to get the selectionModel object from underlying QTableView object and then connect to the signal. 1 Answer. 3. Maybe try connecting the QComboBox and QComboBox widgets to the slot you want. According to the Qt documentation, the countColumnChanged (int, int) is a slot and not a signal. I have an object that inherits QTableView and overrides the resizeEvent() method to set the widths of the table columns to a percantage of the available space if the table as a whole is resized. @. I need to know the row for which the user has checked or unchecked the box. QTreeView – displays hierarchical data. It should be as below : My bad, forgot to change it back to SLOT. The view doesn't actually get those events, but its viewport () (and, since they're normally accepted, they are not propagated to the parent, the view); 2. Signals not only track current selected cell but following -. connect (ui->tableView->selectionModel (), SIGNAL ( selectionChanged (const QItemSelection&, const QItemSelection&)), this. class MyView : public QTableView {. QTableView. append ( []) for column in range (model. QTableView (QWidget *) enum RenderFlag. emit () Removing the line self. Then I was mapping the signal to a slot in the parent widget. We also connect the vertical scrollbars together so that the frozen column scrolls vertically with the rest of our table. h) file, which looks like Then i added the remaining codes in cpp file which looks likeA QTableView implements a table view that displays items from a model. filter_changed). you can use setUpdatesEnabled (bool) in your view to dis and enable the updates; maybe blockSignals (bool) could also be interesting calling it on your model; it should prevent the view from recieving the models update signals. The default edit strategy is OnRowChange. Detailed Description. A very basic example:1. tableView = QTableView() tableView. This method will be called whenever the user checks or unchecks the checkbox. For now, I solved the problem by letting the threads sleep a little (just uncomment the time. This signal is emitted whenever the data of item has changed. I have setup a window with an openGL widget and a QTableView. The model has to emit a signal that indicates what range of cells has changed. cbx. The items in a QTableWidget are provided by QTableWidgetItem. The table is just a buffer. I have tried with the currentChanged( const. The QTableView class is one of the Model/View Classes and is part of Qt's model/view framework. You will need to set the row to highlight in the delegate and based on that, do the highlighting. connect (self. emit() self. Drag and drop is similar in function to the clipboard's cut and paste mechanism. signals: void closing(); protected: void closeEvent(QCloseEvent *event)override; } I have added the above code in (. This function returns -1 if the given coordinate is not valid (has no column). h) file, which looks like Then i added the remaining codes in cpp file which looks likeclass MyView : public QTableView {. foo) Where 'foo' is the name of the function (a member of the same class) that should accept the callback. Table widgets can be constructed with the required numbers of rows and columns: tableWidget = new QTableWidget (12, 3, this); Alternatively, tables can be constructed without a given size and resized later:Yay, I figured it out :-) thanks to this post: Basically, any navigation seems to generate "selectionChanged" signal in selectionModel object. (Don't forget to check the result of the cast before accessing it - qobject_cast returns 0 if it fails)class MyView : public QTableView {. Removes all row and column spans in the table view. [signal] void QWidget:: customContextMenuRequested (const QPoint &pos) This signal is emitted when the widget's contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget. QtGui. I think subclassing is the way to emit a signal which is not emitted by default. To render an item in a custom way, you. [signal] void QTableWidget:: cellClicked (int row, int column) This signal is emitted whenever a cell in the table is clicked. . [signal]. 1 TreeView#So as the title says, after subclassing QTableView to be able to use the return/enter key to select rows from the view, I've lost the ability to use up and down arrows to navigate the view . QtWidgets import * from PyQt5. I am trying to connect to the selectionChanged signal of a QTreeView using PyQt. QSqlTableModel is a high-level interface for reading and writing database records from a single table. But it seems that the connected. QAbstractItemModel::headerData. if you don't want to mess around with Qts interview classes you might also intercept the tree's selection changed signal to your slot. I want to connect my slot to a signal ( selection changed or another signal) by changing the selected row. It provides a standard interface for interoperating with models through the signals and slots mechanism, enabling subclasses to be kept up-to-date with changes to. cellClicked exists in Qt5, but cellClicked is a QTableWidget signal so you can not use it in QTableView, on the other hand I have tested what you point out and I see that it works correctly: that is, when I click the onClick slot is called, and if it makes a double -click is called onClick and onDoubleClick. – Gerges. If you are inside a custom data model, (perhaps inheriting from QAbstractTableModel, since we're discussing QTableViews), you can inform the view that a change of data has occurred by emitting the QAbstractItemModel::dataChanged() signal. beginInsertRows (self, QModelIndex parent, int first, int last)Begins a row insertion operation. Now that you have a QMainWindow, you can include a centralWidget to your interface. I simply want to do this: When the Delegate editor is active, under certain circumstances (when the data in the cell doesn't validate), inhibit departure from the cell and stay in the editing session. I'm making an app with PyQt5 and facing some troubles. There doesn't appear to be anything as concise as the QTableWidget's currentCellChanged, but QTableView does inherit a few things from QAbstractItemView that you may be able to use together, specifically the clicked, entered, & pressed signals for mouse input, and the keyPressEvent for keyboard input. signals: void closing(); protected: void closeEvent(QCloseEvent *event)override; } I have added the above code in (. The QHeaderView class is one of the Model/View Classes and is. I have done this in the past (for a QTableView) and was successful. I can check and uncheck these boxes but it seems like it doesn't emit any signal when status changes. ui->tableView->setItemDelegateForColumn (2, dgtComboDelegate); If you wanted that to happen for a single cell, that's when you need to test on the index. Just change your connect to. Create an object that stores the information you want to send, give it a slot and attach to the signal you want to respond to, emit a new signal with the information, attach to that signal. Only users with topic management privileges can see it. This is the 5th Edition of Create GUI Applications, updated for 2021 & PySide6. QTreeWidget. I have implemented the proper rowCount(), columnCount(), data() virtual methods that are need for a proper TableModel. When does a Qt widget get a signal? [signal] void QTableWidget::itemEntered(QTableWidgetItem *item) This signal is emitted when the. You can trigger behaviors in response to user input, such as button presses or text input, or events in your own code. I subclass QTableView to MyTableView. I wanted this table view to be editable. A QHeaderView displays the headers used in item views such as the QTableView and QTreeView classes. Scroll bars are usually equipped with other controls that enable more accurate navigation. This function is the same as addTab(), but with an. findItems method when called will return a list of QTableWidgetItem objects. After searching I am creating a dataframe and displaying it in QTableView. 4/ All three delegate has a SIGNAL/SLOT respectively their appropriate scan n search QcomboBox(m_prodid) : CurrentIndexChanged(QString) SLOT (myscan descript_n_price)Qt Convenience Function Parameters. 31. The hint provides a way for the delegate to influence how the. class GenericTableView : public QTableView { Q_OBJECT public: GenericTableView(QObject* parent = NULL); void currentChanged(const QModelIndex ¤t, const QModelIndex &previous); signals: void currentChangedSignal(QModelIndex, QModelIndex); }; I figured out how to get signal when the selection has changed, but i need whether there is a selected row: QItemSelectionModel *sm = ui->tableView_partners->selectionModel (); connect (sm, SIGNAL (currentRowChanged (QModelIndex,QModelIndex)), this, SLOT (enableDeleteButton ())); void Partners::enableDeleteButton () Detailed Description. From the table, I want to work with the values, but without working in the table. If you want a table that uses your own data model you should use QTableView rather than this class. 2- I have 3 columns in tableview MemberNumber,FirstName,LastName once. I need to know the row for which the user has checked or unchecked the box. You can override this protected slot in your derived class: #include <QTableView> class TableViewSubclass : public QTableView { Q_OBJECT public: TableViewSubclass (QWidget *parent = nullptr) :. I have a QMainWindow containing a QTableView as its centralwidget. doubleclick on an item and the slot gets the data for the row and loads into the dialog for editing. : QFrame: Supports the box model. __init__(self,parent). QtCore import * from PyQt5. SLOT () macros allow Python to interface with Qt signal and slot delivery mechanisms. signals: void closing(); protected: void closeEvent(QCloseEvent *event)override; } I have added the above code in (. You could use QObject::sender() to get the object that emitted the signal in showMenu() and then use qobject_cast<QTableView*> to cast the returned object into QTableView. List of all members, including inherited members Properties columnCount : int rowCount. The PySide. If you want to set several items of a particular row (say, by calling. oldIndex – int. tableEntity. I inserted a QTableView in my GUI and set selectionMode = SingleSelection , selectionBehavior = SelectRows. PyQt provides some standard Model/View widgets: QListView – displays a list of items; QTableView – displays a tabular of items. This class is used to provide standard tables that were previously provided by the QTable class, but using the more flexible approach provided by Qt’s model/view. m_pTableWidget-> setStyleSheet ("QTableView {selection-background-color: red;}");. Detailed Description. PySide6. flags EditTriggers. [signal] void QWidget:: customContextMenuRequested (const QPoint &pos) This signal is emitted when the widget's contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget. HTML code is Off. If you want to access the widget's content, you should instead install your eventFilter on the Tableview's viewport ! I therefore propose : QTableView * itsView = new QTableView; itsView->viewport ()->installEventFilter (this); Try this, it should fix your problem !Handling signals. currentIndexChanged. asked Feb 8, 2018 at 11:46. We also connect the vertical scrollbars together so that the frozen column scrolls vertically with the rest of our table. In there you should set the data in whatever storage for it you have and if it succeeded emit dataChanged and return true. Member Function Documentation QSqlTableModel:: QSqlTableModel (QObject *parent = nullptr, QSqlDatabase db = QSqlDatabase()) Creates an empty QSqlTableModel and sets the parent to parent and the database connection to db. 2 to map var signal parameters, but it has been changed in Qt 5. So far we've created a window and added a simple push button widget to it, but. Signals from the delegate are used during editing to tell the model and view about the state of the editor. I'm having an issue figuring out what signals are emitted by a QTableView when the user performs various actions for. setModel(model) selectionModel = table. Standard widgets are not designed for separating data from views and this is why Qt has two different types of widgets. h) file, which looks like Then i added the remaining codes in cpp file which looks likeI have a QAbstractTableModel+QTableView, and a Delegate assigned which creates a QLabel widget to use as the editor. This slot is called whenever columns are added or deleted. The above code includes the first method, __init__. [signal] void QAbstractItemModel:: dataChanged (const QModelIndex &topLeft, const QModelIndex &bottomRight, const QList < int > &roles = QList<int>()) This signal is emitted whenever the data in an existing item changes. This ensures that our frozen column's sections are in sync with the headers. J. void Case_Adjustment:: on_pushButton_clicked () { setVisible ( false ); QSqlTableModel *model = new QSqlTableModel; model . QTableView *firstTableView = new QTableView; QTableView *secondTableView = new QTableView; firstTableView->setModel(model); secondTableView->setModel(model); The use of signals and slots in the model/view architecture means that changes to the model can be propagated to all the attached views, ensuring that we can always access the. enum DragDropMode. The QHeaderView class is one of the Model/View Classes and is. 1. QtGui. The signal slot connection has failed since table->selectionModel () has returned null. The QItemSelectionModel class is one of the Model/View Classes and is part of Qt's model/view framework. Table widgets provide standard table display facilities for applications. The QTableView class is one of the Model/View Classes and is part of Qt's. QTableView click and double click signals. Otherwise, the views may end up in an invalid state. QAbstractItemView is an abstract class and cannot itself be instantiated. Since QTableView comes from QAbstractItemView, if the editing mode is triggered by other way (such as mouse double click), the program will run default QAbstractItemView::edit instead of A::edit. If you want a table that uses your own data model you should use QTableView rather than this class. QAbstractItemView is an abstract class and cannot itself be instantiated. 18th March 2015, 09:23 #3. Like graphite suggests above, I typically use dataChanged in my model, typically QSqlTableModel, to find out when editing has ended. Detailed Description. 2. Basically, we tell our QTableView that we want to use a custom context menu by calling the setContextMenuPolicy () method with the arguments Qt::CustomContextMenu. @Ahsan-Niaz said in Qtableview editable cells: will this (view) object help me to derive a custom class? How? class MyView : public QTableView {. Ok,so i have solved this problem like this: First, you must obtain QItemSelectionModel !after! the table was filled: QItemSelectionModel *select = ui->tableView->selectionModel (); Then connect SIGNAL "selectionChanged" with you own SLOT function: connect (select, SIGNAL (selectionChanged. From there you can use the methods for QTableWidgetItem such as setBackgroundColor to change the background. This class is used to provide standard tables that were previously provided by the QTable class, but using the more flexible approach provided by Qt's model/view architecture. There doesn't appear to be anything as concise as the QTableWidget's currentCellChanged, but QTableView does inherit a few things from QAbstractItemView that you may be able to use together, specifically the clicked, entered, & pressed signals for mouse input, and the keyPressEvent for keyboard input. You can use this by doing something like this: self. tv_model is a reference to the actual data of the table, emitting the following signal will update the data, or 'commit' it to the model, so to speak.