在QtableWidget中,我想存储选定的单元格,同时查询数据库并将先前选定的单元格返回被选择。我在QtableWidget上刷新项目清除了选择内容。用户可以选择非连续范围的单元格。

在使用QtableWidget.selectedIndexes()刷新数据之前,我没有问题获取选定的单元格。

我尝试遍历索引列表并使用setCurrentIndex,但这只剩下最后一个索引。我的想法已经用完了。如何根据存储的索引还原选定的单元格范围?

python - 如何从索引列表中选择QtableWidget中的单元格-LMLPHP

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from room_chart import *
from datetime import datetime, timedelta

class Guest_form(QDialog):
    def __init__(self, parent=None):
        QDialog.__init__(self)
        self.ui = Ui_rooms_chart()
        self.ui.setupUi(self)
        self.build_chart()
        self.ui.book.clicked.connect(self.book)

    def book(self):
        self.indexes = self.ui.room_chart.selectedIndexes()
        #Do stuff
        self.build_chart()

        #This has the right behaviour but only selects the last index
        for x in range(len(self.indexes)):
            self.ui.room_chart.setCurrentIndex(self.indexes[x])
        self.ui.room_chart.setFocus()

    def build_chart(self):
        self.ui.room_chart.setRowCount(0)
        self.ui.room_chart.setColumnCount(0)
        col_labels = []
        for x in range(8):
            current_day = datetime.now() + timedelta(days=x)
            col_labels.append(current_day.strftime('%a') + '\n' + current_day.strftime('%d/%m/%y'))
            self.ui.room_chart.setColumnCount(len(col_labels))
            self.ui.room_chart.setHorizontalHeaderLabels(col_labels)

        row_labels = []
        for x in range(8):
            row_labels.append(str(x))
            self.ui.room_chart.setRowCount(len(row_labels))
            self.ui.room_chart.setVerticalHeaderLabels(row_labels)
        self.button = QPushButton(self.ui.room_chart)
        self.button.setText("Push me")
        self.ui.room_chart.setCellWidget(0 , 0, self.button)


if __name__=="__main__":
    app=QApplication(sys.argv)
    myapp = Guest_form()
    myapp.show()
    sys.exit(app.exec_())

最佳答案

您必须使用select()QItemSelectionModel方法:

def book(self):
    persistenIndex = map(QPersistentModelIndex, self.ui.room_chart.selectedIndexes())

    #Do stuff
    self.build_chart()

    for pix in persistenIndex:
        ix = QModelIndex(pix)
        self.ui.room_chart.selectionModel().select(ix, QItemSelectionModel.Select)

    self.ui.room_chart.setFocus()


注意:它将QModelIndex转换为QPersistentModelIndex以避免出现问题,因为不知道build_chart()是否删除,移动或执行任何其他更改项目位置的操作。

关于python - 如何从索引列表中选择QtableWidget中的单元格,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/50067782/

10-12 21:20