QT listview list display component notes

Create an app

from PyQt5 import QtWidgets,QtCore,QtGui
import sys

app = QtWidgets.QApplication(sys.argv)

sys.exit(app.exec_())

Create a new window

# from PyQt5 import QtWidgets,QtCore,QtGui
# import sys

# app = QtWidgets.QApplication(sys.argv)

window = QtWidgets.QMainWindow()
window.show()

# sys.exit(app.exec_())

New list display control

# from PyQt5 import QtWidgets,QtCore,QtGui
# import sys

# app = QtWidgets.QApplication(sys.argv)

# window = QtWidgets.QMainWindow()
# window.resize(350, 250)

listView = QtWidgets.QListView(window)
listView.setGeometry(0, 0, 350, 250)

# window.show()

# sys.exit(app.exec_())

Add data to the list ,python The list of data strings in cannot be passed directly to QListView, You need to transfer with the help of models , Use here QStringListModle
Related articles ：QT5 knowledge ： String list QStringListModel

add to stringListModel, And added data , obtain model data

#from PyQt5 import QtWidgets,QtCore,QtGui
#import sys

#app = QtWidgets.QApplication(sys.argv)

#window = QtWidgets.QMainWindow()
#window.resize(350, 250)

#listView = QtWidgets.QListView(window)
#listView.setGeometry(0, 0, 350, 250)

list = ["ItemA", "ItemB", "ItemC"]
model = QtCore.QStringListModel()
model.setStringList(list)
print(model.stringList())
listView.setModel(model)

#window.show()

s#ys.exit(app.exec_())

There is another way to add data , Before learning another way to add , Let's first define a click event

#from PyQt5 import QtWidgets,QtCore,QtGui
#import sys

def lv_clicked(index):
    print(index.data())

#app = QtWidgets.QApplication(sys.argv)

#window = QtWidgets.QMainWindow()
#window.resize(350, 250)

#listView = QtWidgets.QListView(window)
#listView.setGeometry(0, 0, 350, 250)

#list = ["ItemA", "ItemB", "ItemC"]
#model = QtCore.QStringListModel()
#model.setStringList(list)
#print(model.stringList())
#listView.setModel(model)

listView.clicked.connect(lv_clicked)

#window.show()

#sys.exit(app.exec_())

Each time you click on the list, the selected list members will be printed

Next, you can try to delete the list members

def lv_clicked(index):
    print(index.data())
    model.removeRow(0)

List per click , The top member is deleted
If you want to delete the selected member , It should be possible to guess

def lv_clicked(index):
    print(index.row())
    model.removeRow(index.row())

So another way to add data is to use insertRow(), Query this command construct , Will find and removeRow identical , You only need to accept a sequence number to specify the location of deletion and addition . Then how to specify the added value ？
This command will first insert a null value , Then set the value for this member

def lv_clicked(index):
    row = index.row()
    model.insertRow(row)
    index = model.index(row)
    print(index)
    model.setData(index, "aaa")