PyQt5 – 为组合框的行编辑部分设置背景色

在这篇文章中，我们将看到如何为组合框的行编辑部分设置背景色，组合框的行编辑部分是显示和编辑文本的地方。

为了给组合框的行编辑部分添加背景色，请按以下步骤操作–

1.创建一个组合框

2.创建一个行编辑小组件

3.改变行编辑部件的背景颜色

4.在组合框中添加行编辑部件

语法:

# creating line edit widget
line_edit = QLineEdit()

# setting background color to the line edit widget
line_edit.setStyleSheet("QLineEdit"
                        "{"
                        "background : lightblue;"
                        "}")


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

以下是实施情况

# 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 combo box widget
        self.combo_box = QComboBox(self)
  
        # setting geometry of combo box
        self.combo_box.setGeometry(200, 150, 150, 30)
  
        # making combo box editable
        self.combo_box.setEditable(True)
  
        # 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 widget
        line_edit = QLineEdit()
  
        # setting background color to the line edit widget
        line_edit.setStyleSheet("QLineEdit"
                                "{"
                                "background : lightblue;"
                                "}")
  
  
        # adding line edit widget to 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())