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該代碼創建一個包含QTreeWidget和一個按鈕的對話框。單擊按鈕時,我想刪除當前選定的根項目的所有子項。如何實現它?如何刪除QTreeWidgetItem的子項
app = QApplication([])
class Dialog(QDialog):
def __init__(self, *args, **kwargs):
super(Dialog, self).__init__()
self.setLayout(QVBoxLayout())
self.tree = QTreeWidget(self)
self.tree.setHeaderLabels(['Column name'])
for i in range(3):
root_item = QTreeWidgetItem()
root_item.setText(0, 'Root %s' % i)
self.tree.addTopLevelItem(root_item)
for n in range(3):
childItem = QTreeWidgetItem(root_item)
childItem.setText(0, 'Child %s' % n)
root_item.setExpanded(True)
btn = QPushButton(self)
btn.setText("Delete the selected Root item's child items")
btn.clicked.connect(self.onClick)
self.layout().addWidget(self.tree)
self.layout().addWidget(btn)
self.show()
def onClick(self):
current_item = self.tree.currentItem()
if not current_item:
print 'Please select root item fist'
elif current_item.parent():
print 'Child item is selected. Please select root item instead.'
else:
print 'Root item selected. Number of children: %r' % current_item.childCount()
tree = Dialog()
app.exec_()
既然你已經選擇了不生孩子的項目你是顯示的圖像是一個有點混亂,我認爲,當你選擇你想一個有孩子的項目,只有你的孩子被刪除。我是對的? – eyllanesc
必須選擇根項目才能刪除其子項目。如果選擇了子項目,則不會發生任何事情:它僅打印用戶必須選擇根項目的通知。 – alphanumeric
當我選擇*根0 *時,我得到以下消息*請選擇根項目拳頭* – eyllanesc