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PyQt5 QComboBox – Change border style of line edit part

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  • Last Updated : 17 May, 2020
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In this article we will see how we can change the border style to the line edit part of the combo box, line edit is the part of combo box which displays the selected item, it is editable by nature. In order to set and access the line edit object we use setLineEdit and lineEdit method respectively.

Note : When we create line edit object it make the combo box editable.

In order to do this we have to do the following :

1. Create a combo box
2. Add item to the combo box
3. Create a QLineEdit object
4. Set border to QLineEdit object
5. Add border style to it
6. Add QLineEdit object to the combo box

Syntax :

# creating line edit object
line_edit = QLineEdit()

# setting border to the line edit part
# set border style
line_edit.setStyleSheet("QLineEdit"
                        "{"
                        "border : 4px black;"
                        "border-style : dotted;"
                        "}")


# adding line edit object to the combo box
self.combo_box.setLineEdit(line_edit)

Below is the implementation




# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for widgets
    def UiComponents(self):
        # creating a check-able combo box object
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 80)
  
        # geek list
        geek_list = ["Sayian", "Super Sayian", "Super Sayian 2", "Super Sayian B"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating line edit object
        line_edit = QLineEdit()
  
        # setting border to the line edit part
        # set border style
        line_edit.setStyleSheet("QLineEdit"
                                "{"
                                "border : 4px black;"
                                "border-style : dotted;"
                                "}")
  
  
        # adding line edit object to the combo box
        self.combo_box.setLineEdit(line_edit)
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

Output :


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