Python Forum
Python Forum

[PyQt] making dependant comboBoxes
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Thread Modes
[PyQt] making dependant comboBoxes
Hitsugaya
Unladen Swallow
Posts: 2
Threads: 1
Joined: May 2019
Reputation: 0
#1
May-21-2019, 03:50 PM (This post was last modified: May-21-2019, 11:11 PM by Yoriz.)
Hello,i want to make a dependant combo boxes,where i basically choose 1 option from combobox1 and that option has its own set of options in combobox2. here,when i choose "Roman" from combobox1,i want it to populate other combobox with my already made list.
i keep searching and even though there are some explanations,i can't seem to make it work in my code.

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.setEnabled(True)
        Form.resize(471, 392)
        icon = QtGui.QIcon()
        icon.addPixmap(QtGui.QPixmap("iconfinder_Bleach_197477.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
        Form.setWindowIcon(icon)
        self.label_author = QtWidgets.QLabel(Form)
        self.label_author.setEnabled(True)
        self.label_author.setGeometry(QtCore.QRect(340, 355, 121, 31))
        font = QtGui.QFont()
        font.setFamily("Nimbus Mono L")
        font.setPointSize(9)
        self.label_author.setFont(font)
        self.label_author.setObjectName("label_author")
        self.label_1 = QtWidgets.QLabel(Form)
        self.label_1.setGeometry(QtCore.QRect(12, 42, 50, 22))
        self.label_1.setObjectName("label_1")
        self.label_2 = QtWidgets.QLabel(Form)
        self.label_2.setGeometry(QtCore.QRect(12, 78, 34, 22))
        self.label_2.setObjectName("label_2")
        self.label_3 = QtWidgets.QLabel(Form)
        self.label_3.setGeometry(QtCore.QRect(12, 114, 34, 22))
        self.label_3.setObjectName("label_3")
        self.label_4 = QtWidgets.QLabel(Form)
        self.label_4.setGeometry(QtCore.QRect(12, 150, 50, 22))
        self.label_4.setObjectName("label_4")
        self.lineEdit_1 = QtWidgets.QLineEdit(Form)
        self.lineEdit_1.setGeometry(QtCore.QRect(68, 42, 142, 30))
        self.lineEdit_1.setObjectName("lineEdit_1")
        self.lineEdit_2 = QtWidgets.QLineEdit(Form)
        self.lineEdit_2.setGeometry(QtCore.QRect(68, 78, 142, 30))
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.lineEdit_3 = QtWidgets.QLineEdit(Form)
        self.lineEdit_3.setGeometry(QtCore.QRect(68, 114, 142, 30))
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.lineEdit_4 = QtWidgets.QLineEdit(Form)
        self.lineEdit_4.setGeometry(QtCore.QRect(68, 150, 142, 30))
        self.lineEdit_4.setObjectName("lineEdit_4")
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(10, 360, 91, 22))
        font = QtGui.QFont()
        font.setFamily("FreeMono")
        font.setBold(False)
        font.setItalic(True)
        font.setUnderline(False)
        font.setWeight(50)
        font.setStrikeOut(False)
        font.setKerning(True)
        self.label.setFont(font)
        self.label.setObjectName("label")
        self.line = QtWidgets.QFrame(Form)
        self.line.setGeometry(QtCore.QRect(11, 187, 227, 16))
        self.line.setFrameShape(QtWidgets.QFrame.HLine)
        self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
        self.line.setObjectName("line")
        self.pushButton = QtWidgets.QPushButton(Form)
        self.pushButton.setGeometry(QtCore.QRect(140, 355, 161, 31))
        self.pushButton.setObjectName("pushButton")
        self.label_5 = QtWidgets.QLabel(Form)
        self.label_5.setGeometry(QtCore.QRect(10, 211, 43, 31))
        self.label_5.setObjectName("label_5")
        self.lineEdit_5 = QtWidgets.QLineEdit(Form)
        self.lineEdit_5.setGeometry(QtCore.QRect(70, 210, 141, 30))
        self.lineEdit_5.setReadOnly(True)
        self.lineEdit_5.setObjectName("lineEdit_5")
        self.line_2 = QtWidgets.QFrame(Form)
        self.line_2.setGeometry(QtCore.QRect(10, 260, 227, 16))
        self.line_2.setFrameShape(QtWidgets.QFrame.HLine)
        self.line_2.setFrameShadow(QtWidgets.QFrame.Sunken)
        self.line_2.setObjectName("line_2")
        self.line_3 = QtWidgets.QFrame(Form)
        self.line_3.setEnabled(True)
        self.line_3.setGeometry(QtCore.QRect(230, 10, 16, 258))
        self.line_3.setLineWidth(1)
        self.line_3.setMidLineWidth(0)
        self.line_3.setFrameShape(QtWidgets.QFrame.VLine)
        self.line_3.setFrameShadow(QtWidgets.QFrame.Sunken)
        self.line_3.setObjectName("line_3")
        self.comboBox_2 = QtWidgets.QComboBox(Form)
        self.comboBox_2.setGeometry(QtCore.QRect(360, 40, 86, 30))
        self.comboBox_2.setObjectName("comboBox")
        self.comboBox = QtWidgets.QComboBox(Form)
        self.comboBox.setGeometry(QtCore.QRect(250, 40, 86, 30))
        self.comboBox.setObjectName("comboBox_2")
        self.comboBox.addItem("")
        self.comboBox.addItem("")
        self.comboBox.addItem("")
        self.label_6 = QtWidgets.QLabel(Form)
        self.label_6.setGeometry(QtCore.QRect(260, 10, 68, 22))
        self.label_6.setAlignment(QtCore.Qt.AlignCenter)
        self.label_6.setObjectName("label_6")
        self.label_7 = QtWidgets.QLabel(Form)
        self.label_7.setGeometry(QtCore.QRect(370, 10, 68, 22))
        self.label_7.setAlignment(QtCore.Qt.AlignCenter)
        self.label_7.setWordWrap(False)
        self.label_7.setObjectName("label_7")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "UNI-TRAV Calculator"))
        self.label_author.setText(_translate("Form", "Version:  1.0.0"))
        self.label_1.setText(_translate("Form", "Wood: "))
        self.label_2.setText(_translate("Form", "Clay:"))
        self.label_3.setText(_translate("Form", "Iron:"))
        self.label_4.setText(_translate("Form", "Wheat:"))
        self.label.setText(_translate("Form", "Hitsugaya"))
        self.pushButton.setText(_translate("Form", "Magic Button"))
        self.label_5.setText(_translate("Form", "Total: "))
        self.lineEdit_5.setText(_translate("Form", "0"))
        self.comboBox.setItemText(0, _translate("Form", "Romans"))
        self.comboBox.setItemText(1, _translate("Form", "Gauls"))
        self.comboBox.setItemText(2, _translate("Form", "Teutons"))
        self.label_6.setText(_translate("Form", "Tribe:"))
        self.label_7.setText(_translate("Form", "Unit:"))


        self.pushButton.clicked.connect(self.klik)

        Romans = ["Leggionaire", "Praetorian", "Imperian", "Equites Legati", "Equites Imperatoris",
         "Equites Caesaris", "Battering Ram", "Fire Catapult", "Senator", "Settler"]

        Gauls = ["Phalanx", "Swordsman", "Pathfinder", "Theutates Thunder", "Druidrider", "Haeduan",
         "Ram", "Trebuchet", "Chieftain", "Settler"]

        Teutons = ["Clubswinger", "Spearman", "Axeman", "Scout", "Paladin", "Teutonic Knight", "Ram",
         "Catapult", "Chief", "Settler"]


    def klik(self):
        textbox1 = self.lineEdit_1.text()
        textbox2 = self.lineEdit_2.text()
        textbox3 = self.lineEdit_3.text()
        textbox4 = self.lineEdit_4.text()
        self.lineEdit_5.setText(str(int(textbox1) + int(textbox2) + int(textbox3) + int(textbox4)))




if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())
Find
Reply
Alfalfa
Splitter
Posts: 164
Threads: 22
Joined: Feb 2017
Reputation: 12
#2
May-21-2019, 05:31 PM (This post was last modified: May-21-2019, 05:32 PM by Alfalfa.) 
#!/usr/bin/python3
import sys
from PyQt5 import QtCore, QtGui, QtWidgets

class Main(QtWidgets.QMainWindow):
    def __init__(self, parent):
        super().__init__()
        self.ui = QtWidgets.QWidget(self)
        self.setCentralWidget(self.ui)
        self.ui.combo1 = QtWidgets.QComboBox()
        self.ui.combo2 = QtWidgets.QComboBox()

        self.ui.combo1.currentTextChanged.connect(self._updateCombo2)
        self.ui.combo1.addItems(("A", "B", "C"))

        self.ui.layout = QtWidgets.QVBoxLayout()
        self.ui.layout.addWidget(self.ui.combo1)
        self.ui.layout.addWidget(self.ui.combo2)
        self.ui.setLayout(self.ui.layout)
        self.show()

    def _updateCombo2(self, text):
        self.ui.combo2.clear()
        if text == "A":
            self.ui.combo2.addItems(("1", "2", "3"))
        elif text == "B":
            self.ui.combo2.addItems(("4", "5", "6"))
        elif text == "C":
            self.ui.combo2.addItems(("7", "8", "9"))

if __name__== '__main__':
    app = QtWidgets.QApplication([])
    gui = Main(app)
    sys.exit(app.exec_())
PyQt5 Examples
Find
Reply
Hitsugaya
Unladen Swallow
Posts: 2
Threads: 1
Joined: May 2019
Reputation: 0
#3
May-23-2019, 05:09 PM
it worked great,i implemented your example.
Find
Reply
Alfalfa
Splitter
Posts: 164
Threads: 22
Joined: Feb 2017
Reputation: 12
#4
May-23-2019, 06:05 PM
I'm glad it helped :)

In the future, it is a good habit to refer to the Qt documentation. There you can find all the information you need about the methods and signals that are available for the widget you are working with.

In this case: https://doc.qt.io/qt-5/qcombobox.html#signals
PyQt5 Examples
Find
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  [Tkinter] interlinked Comboboxes azelor 4 2,095 Dec-11-2024, 07:31 PM
Last Post: menator01
  Can't get tkinter database aware cascading comboboxes to update properly dford 6 7,615 Jan-11-2022, 08:37 PM
Last Post: deanhystad
  Linking Comboboxes MrP 24 13,794 Feb-03-2021, 10:59 PM
Last Post: MrP
  Print Values from a Sequence of Entries / ComboBoxes MC2020 4 6,524 Mar-28-2020, 10:05 PM
Last Post: MC2020

Forum Jump:

User Panel Messages

Log Out
My Profile
Pay your profile a visit
User Control Panel
Do some changes on your profile
My Messages
View private messages unread
Avatar
Change avatar
Signature
Change signature
Announcements
Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020