PyQt5 – 如何为组合框添加模型

在这篇文章中，我们将看到如何为组合框设置模型。模型用于设置组合框的项目，为了设置模型，我们将使用setModel方法。

注意： 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。

语法： combo_box.setModel(model)

参数： 它接受QStandardItemModel对象作为参数

返回： 无

下面是实现方法

# 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 Sayian", "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)
 
 
 
# 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 - 如何为组合框添加模型