PyQt5 - 检查 ComboBox 是否可编辑

在本文中，我们将了解如何知道组合框是否可编辑。可编辑组合框是这样的，用户可以通过键入来更改它的值。默认情况下，当我们创建组合框时，我们只能从下拉菜单中的选项中进行选择，尽管在可编辑组合框中我们可以自己设置文本。为了制作可编辑的组合框，我们使用setEditable方法

为了检查组合框是否可编辑，我们使用isEditable ，

Syntax : combo_box.isEditable()

Argument : It takes no argument

Return : it returns bool

编程需要懂一点英语

下面是实现——

# 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, 120, 30)
  
        # geek list
        geek_list = ["Geek", "Geeky Geek", "Legend Geek", "Ultra Legend Geek"]
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating a editable combo box
        self.combo_box.setEditable(True)
  
        # checking if it is editable or not
        check = self.combo_box.isEditable()
  
        # creating label to show the status
        label = QLabel("Editable ? : " + str(check), self)
  
        # setting geometry of label
        label.setGeometry(200, 200, 200, 30)
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出：