数字排序QTableWidgetItem

我正在尝试使用python和pyqt4创建一个表。数字排序QTableWidgetItem

此刻它会像这样

100, 10, 1, 2

等项目进行排序..

它需要被归类为这样的：

1,2,10,100

等

我是目前正在使用

self.table.setSortingEnabled(True)

但我认为这是什么原因导致它排序？可能有人请帮助我理清它正确

的窗口完整的代码是在这里：

def BuildCustomerDetails(self): 

    # Create Table 
    self.mainLayout = QtGui.QGridLayout() 

    # Construct table items 

    db = sqlite3.connect("Database") 
    cursor = db.cursor() 

     #ID 
    cursor.execute("""SELECT ID FROM Customer;""") 
    items = cursor.fetchall() 
    ID = [] 
    for row in items: 
     item = row[0] 
     ID.append(item) 



     #First name 
    cursor.execute("""SELECT FirstName FROM Customer;""") 
    items = cursor.fetchall() 
    firstName = [] 
    for row in items: 
     item = row[0] 
     firstName.append(item) 
    height = len(items) 

     #Surname 
    cursor.execute("""SELECT Surname FROM Customer;""") 
    items = cursor.fetchall() 
    Surname = [] 
    for row in items: 
     item = row[0] 
     Surname.append(item) 

     #First Line Address 
    cursor.execute("""SELECT firstLineAddress FROM Customer;""") 
    items = cursor.fetchall() 
    firstLineAddress = [] 
    for row in items: 
     item = row[0] 
     firstLineAddress.append(item) 

     #Second Line Address 
    cursor.execute("""SELECT SecondLineAddress FROM Customer;""") 
    items = cursor.fetchall() 
    SecondLineAddress = [] 
    for row in items: 
     item = row[0] 
     SecondLineAddress.append(item) 

     #Town 
    cursor.execute("""SELECT Town FROM Customer;""") 
    items = cursor.fetchall() 
    Town = [] 
    for row in items: 
     item = row[0] 
     Town.append(item) 

     #Postcode 
    cursor.execute("""SELECT Postcode FROM Customer;""") 
    items = cursor.fetchall() 
    Postcode = [] 
    for row in items: 
     item = row[0] 
     Postcode.append(item) 


    # TABLE 
    self.table = QtGui.QTableWidget(height,7,self) 

    self.horizontalHeaderItem1 = QtGui.QTableWidgetItem("ID") 
    self.horizontalHeaderItem2 = QtGui.QTableWidgetItem("First Name") 
    self.horizontalHeaderItem3 = QtGui.QTableWidgetItem("Surname") 
    self.horizontalHeaderItem4 = QtGui.QTableWidgetItem("Address Line 1") 
    self.horizontalHeaderItem5 = QtGui.QTableWidgetItem("Address Line 2") 
    self.horizontalHeaderItem6 = QtGui.QTableWidgetItem("Town") 
    self.horizontalHeaderItem7 = QtGui.QTableWidgetItem("Post Code") 


    self.table.setHorizontalHeaderItem(0,self.horizontalHeaderItem1) 
    self.table.setHorizontalHeaderItem(1,self.horizontalHeaderItem2) 
    self.table.setHorizontalHeaderItem(2,self.horizontalHeaderItem3) 
    self.table.setHorizontalHeaderItem(3,self.horizontalHeaderItem4) 
    self.table.setHorizontalHeaderItem(4,self.horizontalHeaderItem5) 
    self.table.setHorizontalHeaderItem(5,self.horizontalHeaderItem6) 
    self.table.setHorizontalHeaderItem(6,self.horizontalHeaderItem7) 

    self.table.setWindowFlags(Qt.Dialog) 
    self.table.setSortingEnabled(True) 

    ## ADD DATABASE ITEMS TO TABLE 

     #ID 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(ID[i]) 
     self.table.setItem(i,0,item) 

     #product code 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(firstName[i]) 
     self.table.setItem(i,1,item) 

     #Surname 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(Surname[i]) 
     self.table.setItem(i,2,item) 

     #firstLineAddress 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(firstLineAddress[i]) 
     self.table.setItem(i,3,item) 

     #SecondLineAddress 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(SecondLineAddress[i]) 
     self.table.setItem(i,4,item) 

     #Town 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(Town[i]) 
     self.table.setItem(i,5,item) 

     #Postcode 
    for i in range(1, height): 
     item = QtGui.QTableWidgetItem(Postcode[i]) 
     self.table.setItem(i,6,item) 


    # Create Widgets 
    self.AddButton = QtGui.QPushButton("Add Customer",self) 
    self.RemoveButton = QtGui.QPushButton("Remove Customer",self) 
    self.MoreButton = QtGui.QPushButton("More Details",self) 
    self.BackButton = QtGui.QPushButton("Back",self) 

    # Create Layouts 
    self.VLayout = QtGui.QVBoxLayout() 
    self.HLayout = QtGui.QHBoxLayout() 

    # Assemble 

    self.VLayout.addWidget(self.AddButton) 
    self.VLayout.addWidget(self.RemoveButton) 
    self.VLayout.addWidget(self.MoreButton) 
    self.VLayout.addWidget(self.BackButton) 

    self.HLayout.addWidget(self.table) 

    self.mainLayout.addLayout(TopBar(self),0,0,1,5) 
    self.mainLayout.addLayout(self.VLayout,2,4) 
    self.mainLayout.addLayout(self.HLayout,1,0,4,4) 

    self.table.itemSelectionChanged.connect(self.getCell) 


    self.MoreButton.clicked.connect(self.MoreCustomerDetailsLaunch) 
    self.BackButton.clicked.connect(self.Back) 
    self.AddButton.clicked.connect(self.AddCustomerLaunch) 


    Menu(self) 

    return self.mainLayout

感谢

SAM

来源

2013-02-05 Sam McKay

的QTableWidget类不提供的API来定制排序处理。如果你想你可以尝试重新实现QTableWidgetItem的__lt__运算符，至少这似乎适用于C++，如this答案中所见。

实现此目的的另一种方式可以在将项目从python端添加到表中时排序项目，并避免在视图中设置启用排序功能。当你从数据库中获取数据时，你应该按照你想要的列对列进行排序，然后为它们创建QTableWidgetItem。显然，如果您想要动态更新列表，或者想要将顺序从升序更改为降序，则这变得相当复杂。

来源

2013-02-05 21:41:24 Bakuriu

重新实现QTableWidgetItem这样的：

class MyTableWidgetItem(QtGui.QTableWidgetItem): 
    def __init__(self, number): 
     QtGui.QTableWidgetItem.__init__(self, number, QtGui.QTableWidgetItem.UserType) 
     self.__number = number 

    def __lt__(self, other): 
     return self.__number < other.__number

所以，你需要通过使用数字代替MyTableWidgetItem QTableWidgetItem，这样的排序：

for i in range(1, height): 
     item = MyTableWidgetItem(numbers[i]) 
     self.table.setItem(i,0,item)

来源

2013-04-29 11:51:34 Aleksandar

数字排序QTableWidgetItem

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