change the image the index of a stakedWidget using a QcomboBox

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change the image the index of a stakedWidget using a QcomboBox

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#1 by (1 votes)

3

Good evening I have the following code:

from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5 import uic
from PyQt5.QtCore import Qt
from tabla import tabla_style

class Principal(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        uic.loadUi("new_exe.ui",self)

        self.setWindowFlags(Qt.FramelessWindowHint)
        self.b_close.clicked.connect(lambda:self.close())
        self.b_min.clicked.connect(lambda:self.showMinimized())
        if self.combo.currentIndex() == 0:
            self.stackedWidget.setCurrentIndex(0)
        elif self.combo.currentIndex()== 1:
            self.stackedWidget.setCurrentIndex(1)




app = QApplication([])
p = Principal()
p.show()
app.exec_()

and what I'm trying to do is that when I change the value of qcombobox I change the index of the stakedwidget however it does not work Any suggestions?

python python-3.x pyqt pyqt5

asked by Mystic_Force 02.09.2018 в 04:30

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1 answer

Laravel 5.6: Get sum of a field from a table using sum and where how can I show the data of my delegation column only once without showing it in my table

score 1 · Accepted Answer

You must use a signal to make the change since your verification is only done in the constructor for once.

Assuming that the QComboBox has the same number of items as the QStackedWidget pages, it is only necessary to connect the signal currentIndexChanged :

from PyQt5.QtWidgets import QMainWindow, QApplication
from PyQt5 import uic
from PyQt5.QtCore import Qt


class Principal(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self, flags=Qt.FramelessWindowHint)
        uic.loadUi("new_exe.ui",self)

        self.b_close.clicked.connect(self.close)
        self.b_min.clicked.connect(self.showMinimized)
        self.combo.currentIndexChanged.connect(self.stackedWidget.setCurrentIndex)


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    p = Principal()
    p.show()
    sys.exit(app.exec_())

Note: Do not abuse lambda functions, in the case of PyQt it is better to make a direct connection since it saves resources and increases the speed.