PyQt5 – 如何获得组合框的模型

在这篇文章中，我们将看到如何获得组合框的模型。模型是用来设置组合框的项目的。为了设置模型，我们将使用setModel方法。如果我们在插入项目后添加模型，它将清除所有的元素，所以模型应该在插入任何元素之前添加。为了获得模型，我们使用model方法。

语法： combo_box.model()

参数： 它不需要参数

返回： 它返回QStandardItemModel对象。

以下是实现方法

# 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)
  
        # geek list
        geek_list = ["Sayian", "Super Saiyan", "Super Sayian 2",
                                               "Super Sayian B"]
  
        # making it editable
        self.combo_box.setEditable(True)
  
        # adding list of items to combo box
        self.combo_box.addItems(geek_list)
  
        # creating a model
        model = QtGui.QStandardItemModel(0, 1)
  
        # creating a item
        item = QtGui.QStandardItem("New model")
  
        # adding item to the model
        model.appendRow(item)
  
        # setting model to the combo box
        self.combo_box.setModel(model)
  
        # getting the model
        get_model = self.combo_box.model()
  
        # creating label to show model
        label = QLabel("Model = " + str(get_model), self)
  
        # setting geometry to the label
        label.setGeometry(150, 100, 300, 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 :

PyQt5 - 如何获得组合框的模型