PyQt5组合框 行编辑部分的不同边框颜色

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不同的边框颜色，行编辑是组合框中显示所选项目的部分，它是可编辑的。为了设置和访问行编辑对象，我们分别使用setLineEdit和lineEdit方法。

为了 做到这一点，我们必须做以下工作:

1.创建一个组合框

2.在组合框中添加项目

3.创建一个QLineEdit对象

4.给QLineEdit对象设置不同颜色的边框

5.在组合框中添加QLineEdit对象

下面是实现的过程

# 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)

        # 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 object
        line_edit = QLineEdit()

        # setting different border color to the line edit
        line_edit.setStyleSheet("QLineEdit"
                                "{"
                                "border : 5px solid;"
                                "border-color : red green blue yellow"
                                "}")

        # 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())

输出 :