PyQt5 – 可编辑组合框的背景色
在这篇文章中,我们将看到如何设置组合框在可编辑状态下的背景颜色。默认情况下,组合框是灰色的,尽管我们可以改变它的颜色。这个背景色只在组合框小部件处于可编辑状态时出现。
有两种方法来设置组合框的背景色。如果它处于可编辑状态,我们必须每次都检查它是否可编辑。如果是可编辑的,就设置背景色,否则就删除背景色,另一种简单的方法是借助样式表。
为了做到这一点,我们必须改变组合框的样式表代码,下面是样式表代码—-。
QComboBox::editable
{
background-color : lightgreen;
}
Python
以下是实施情况
# 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)
# adding background color to the combo box
# when it is in editable state
self.combo_box.setStyleSheet("QComboBox::editable"
"{"
"background-color: lightgreen;"
"}")
# create pyqt5 app
App = QApplication(sys.argv)
# create the instance of our Window
window = Window()
# start the app
sys.exit(App.exec())
Python
输出 :