我有一个动态创建stackedWidget的函数，并根据查询添加新页面。每个页面都会获得一个动态创建的tableWidget，它在代码循环之前加载。 stackedWidget由List控制，该List在创建每个页面的同时填充。到目前为止，一切都很好，但我在从tableWidgets中提取数据时遇到问题。在循环结束时有一个信号
ui.tableWidget.cellChanged[int,int].connect(saveLineItem)
def saveLineItem(row, col):
print('row = ' + str(row))
print('column = ' + str(col))
ui = uiDef.ui
print(ui.tableWidget.item(row, col).text())
def loadInventory(ui):
conn = sqlite3.connect('DbLocal.sqlite')
cur = conn.cursor()
SQL = "SELECT INVENTORY.Inventory FROM INVENTORY WHERE Description = '*' ORDER BY Display_No"
cur.execute(SQL)
rows = cur.fetchall()
if ui.swInventory:
ui.swInventory.close()
ui.lstCatagory.clear()
ui.swInventory = QtWidgets.QStackedWidget(ui.tab_Inventory)
ui.swInventory.setGeometry(QtCore.QRect(255, 20, 876, 586))
ui.swInventory.setFrameShape(QtWidgets.QFrame.Box)
ui.swInventory.setObjectName("swInventory")
lstInvHeader = ['Display_No','ITEM_NO', 'Trigger', 'Quantity', 'Description', 'Part_No', 'Price', 'Inventory', 'Spreadsheet', 'NoDisplay', 'T_S', 'Track', 'Msg', 'S_Hooks', 'P_Hooks' ]
for row in rows:
sCatName = row[0]
page = sCatName
ui.lstCatagory.addItem(sCatName)
ui.page = QtWidgets.QWidget()
ui.page.setObjectName(sCatName)
ui.tableWidget = QtWidgets.QTableWidget(ui.page)
ui.tableWidget.setGeometry(QtCore.QRect(20, 20, 831, 561))
font = QtGui.QFont()
font.setPointSize(14)
ui.tableWidget.setFont(font)
ui.tableWidget.setAlternatingRowColors(True)
ui.tableWidget.setObjectName("tableWidget")
ui.tableWidget.setRowCount(1)
ui.tableWidget.verticalHeader().setVisible(False)
ui.tableWidget.setColumnCount(15)
ui.tableWidget.setHorizontalHeaderLabels(lstInvHeader)
ui.tableWidget.hideColumn(0)
ui.tableWidget.hideColumn(1)
ui.tableWidget.hideColumn(2)
ui.tableWidget.hideColumn(5)
ui.tableWidget.hideColumn(7)
ui.tableWidget.hideColumn(8)
ui.tableWidget.hideColumn(9)
ui.tableWidget.hideColumn(10)
ui.tableWidget.hideColumn(11)
ui.tableWidget.hideColumn(12)
ui.tableWidget.hideColumn(13)
ui.tableWidget.hideColumn(14)
ui.tableWidget.setColumnWidth(4, 611)
SQL = "SELECT * FROM INVENTORY WHERE Inventory = '{}' ORDER BY Display_No".format(sCatName)
cur.execute(SQL)
InvRows = cur.fetchall()
i = 0
for row in InvRows:
if row[4] == '*':
pass
else:
rDisplay_No = str(row[0])
iITEM_NO = str(row[1])
iTRIGGER = str(row[2])
iQUANTITY = ""
if row[3] == None:
iQUANTITY = ""
else:
#iQUANTITY = round(row[6], 2)
iQUANTITY = str(iQUANTITY)
sDESCRIPTION = " " + str(row[4])
sPART_NO = row[5]
rPRICE = str(row[6])
sINVENTORY = row[7]
sSPREADSHEET = row[8]
iNoDisplay = str(row[9])
iT_S = str(row[10])
iTRACK = str(row[11])
iMSG = str(row[12])
iS_HOOKS = str(row[13])
iP_HOOKS = str(row[14])
item = QTableWidgetItem(rDisplay_No)
item2 = QTableWidgetItem(iITEM_NO)
item3 = QTableWidgetItem(iTRIGGER)
item4 = QTableWidgetItem(iQUANTITY)
item5 = QTableWidgetItem(sDESCRIPTION)
item6 = QTableWidgetItem(sPART_NO)
item7 = QTableWidgetItem(rPRICE)
item8 = QTableWidgetItem(sINVENTORY)
item9 = QTableWidgetItem(sSPREADSHEET)
item10 = QTableWidgetItem(iNoDisplay)
item11 = QTableWidgetItem(iT_S)
item12 = QTableWidgetItem(iTRACK)
item13 = QTableWidgetItem(iMSG)
item14 = QTableWidgetItem(iS_HOOKS)
item15 = QTableWidgetItem(iP_HOOKS)
item4.setTextAlignment(Qt.AlignCenter)
item5.setFlags( Qt.NoItemFlags | Qt.ItemIsEnabled)
item7.setFlags( Qt.ItemIsSelectable | Qt.ItemIsEnabled)
ui.tableWidget.setItem(i,0, item)
ui.tableWidget.setItem(i,1, item2)
ui.tableWidget.setItem(i,2, item3)
ui.tableWidget.setItem(i,3, item4)
ui.tableWidget.setItem(i,4, item5)
ui.tableWidget.setItem(i,5, item6)
ui.tableWidget.setItem(i,6, item7)
ui.tableWidget.setItem(i,7, item8)
ui.tableWidget.setItem(i,8, item9)
ui.tableWidget.setItem(i,9, item10)
ui.tableWidget.setItem(i,10, item11)
ui.tableWidget.setItem(i,11, item12)
ui.tableWidget.setItem(i,12, item13)
ui.tableWidget.setItem(i,13, item14)
ui.tableWidget.setItem(i,14, item15)
i += 1
ui.tableWidget.setRowCount(i+2)
setattr(uiDef, "ui", ui)
ui.tableWidget.cellChanged[int,int].connect(saveLineItem)
ui.label = QtWidgets.QLabel(ui.page)
ui.label.setGeometry(QtCore.QRect(308, 0, 151, 20))
ui.label.setAlignment(QtCore.Qt.AlignCenter)
ui.label.setObjectName("label")
ui.label.setText(sCatName)
ui.swInventory.addWidget(ui.page)
iNumPages = ui.swInventory.count()
答案 0 :(得分：0)
解决此类问题的常用方法是将信号连接到缓存对当前对象的引用的lambda（或部分函数）：
def saveLineItem(table, row, col):
print('row = ' + str(row))
print('column = ' + str(col))
print(table.item(row, col).text())
def loadInventory(ui):
...
ui.tableWidget.cellChanged[int,int].connect(
lambda row, colum, table=ui.tableWidget:
saveLineItem(table, row, column))