Bdtjtk

I have a QTableWidget and a Qcombobox. I want to get text values from every single cell in first column 1 and when ever a user inserts a new value, that would assign and set automatically to Qcombobox. What I mean by every single cell is to get available values, when a cell is empty then do nothing.

Visualization:

from PyQt5 import QtCore, QtWidgets



class Widget(QtWidgets.QWidget):

    def __init__(self, parent=None):

        QtWidgets.QWidget.__init__(self, parent)

        self.setLayout(QtWidgets.QVBoxLayout())

        combo = QtWidgets.QComboBox(self)

        self.layout().addWidget(combo)



class Window(QtWidgets.QWidget):

    def __init__(self):

        super(Window, self).__init__()

        self.table = QtWidgets.QTableWidget(10, 2, self)

        self.comboBox = QtWidgets.QComboBox()

        layout = QtWidgets.QVBoxLayout(self)

        layout.addWidget(self.table)

        names = ['Name 1', 'Name 2', 'Name 3', 'Name 4', 'Name 5']

        for index, name in enumerate(names):

            self.table.setItem(index, 0, QtWidgets.QTableWidgetItem(name))



class Layout(QtWidgets.QWidget):

    def __init__(self, parent=None):

        super(Layout, self).__init__()

        self.comb = Widget()

        self.table = Window()



        layout = QtWidgets.QVBoxLayout(self)

        layout.addWidget(self.table)

        layout.addWidget(self.comb)



if __name__ == '__main__':



    import sys

    app = QtWidgets.QApplication(sys.argv)

    window = Layout()

    window.setGeometry(600, 200, 300, 300)

    window.show()

    sys.exit(app.exec_())

I am not sure about connection and slot solution will give a good choose?

In this it is better to pass as a model so that it is automatically updated without the unnecessary use of signals. But since you want no empty elements to be displayed, use QSortFilterProxyModel with an appropriate regex:

from PyQt5 import QtCore, QtWidgets



class Window(QtWidgets.QWidget):

    def __init__(self):

        super(Window, self).__init__()

        self.table = QtWidgets.QTableWidget(10, 2)

        names = ['Name 1', 'Name 2', 'Name 3', 'Name 4', 'Name 5']

        for index, name in enumerate(names):

            self.table.setItem(index, 0, QtWidgets.QTableWidgetItem(name))



        proxy = QtCore.QSortFilterProxyModel(self)

        proxy.setSourceModel(self.table.model())

        proxy.setFilterRegExp(r"^(?!s*$).+")



        self.comboBox = QtWidgets.QComboBox()

        self.comboBox.setModel(proxy)

        self.comboBox.setModelColumn(0)



        layout = QtWidgets.QVBoxLayout(self)

        layout.addWidget(self.table)

        layout.addWidget(self.comboBox)



if __name__ == '__main__':

    import sys

    app = QtWidgets.QApplication(sys.argv)

    window = Window()

    window.setGeometry(600, 200, 300, 300)

    window.show()

    sys.exit(app.exec_())