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我有一个使用 wxListCtrl 生成的列表,其中包含三个列。列表更新时生成的数据需要在我的代码的另一部分中使用。谁能告诉我如何获取列表中所有 3 个列的项目的所有值?我的清单如下...

self.list_ctrl = wx.ListCtrl(self.panel, size=(565,150),pos=(15,20),style=wx.LC_REPORT | wx.BORDER_SUNKEN)
self.name=self.list_ctrl.InsertColumn(0, 'Task Name',width=189)
self.date=self.list_ctrl.InsertColumn(1, 'Run ',width=189)
self.status=self.list_ctrl.InsertColumn(2, 'Status', width=187
self.index=0

使用..生成项目的位置

Taskname=self.list_ctrl.InsertStringItem(self.index,task)
Taskdate=self.list_ctrl.SetStringItem(self.index, 1,strftime("%d-%m-%Y", gmtime()))
Tasktime=self.list_ctrl.SetStringItem(self.index,2,datetime.now().strftime('%H:%M:%S'))

我可以得到项目的名称,即“self.name”,它位于第一列下

name=self.list_ctrl.GetItemText(self.name)

但是'self.date'和'self.time'返回的是int类型的值。如何分别在变量'Taskdate'和'Tasktime'中获取日期和时间?

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1 回答 1

4

有几种方法可以做到这一点。最简单的(在我看来)是将对象与每一行相关联,但我们将首先以“硬”方式进行:

import wx

########################################################################
class MyForm(wx.Frame):

    #----------------------------------------------------------------------
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "List Control Tutorial")

        # Add a panel so it looks the correct on all platforms
        panel = wx.Panel(self, wx.ID_ANY)
        self.index = 0

        self.list_ctrl = wx.ListCtrl(panel, size=(-1,100),
                         style=wx.LC_REPORT
                         |wx.BORDER_SUNKEN
                         )
        self.list_ctrl.InsertColumn(0, 'Subject')
        self.list_ctrl.InsertColumn(1, 'Due')
        self.list_ctrl.InsertColumn(2, 'Location', width=125)

        btn = wx.Button(panel, label="Add Line")
        btn2 = wx.Button(panel, label="Get Data")
        btn.Bind(wx.EVT_BUTTON, self.add_line)
        btn2.Bind(wx.EVT_BUTTON, self.getColumn)

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
        sizer.Add(btn, 0, wx.ALL|wx.CENTER, 5)
        sizer.Add(btn2, 0, wx.ALL|wx.CENTER, 5)
        panel.SetSizer(sizer)

    #----------------------------------------------------------------------
    def add_line(self, event):
        line = "Line %s" % self.index
        self.list_ctrl.InsertStringItem(self.index, line)
        self.list_ctrl.SetStringItem(self.index, 1, "01/19/2010")
        self.list_ctrl.SetStringItem(self.index, 2, "USA")
        self.index += 1

    #----------------------------------------------------------------------
    def getColumn(self, event):
        """"""
        count = self.list_ctrl.GetItemCount()
        cols = self.list_ctrl.GetColumnCount()
        for row in range(count):
            for col in range(cols):
                item = self.list_ctrl.GetItem(itemId=row, col=col)
                print item.GetText()

#----------------------------------------------------------------------
# Run the program
if __name__ == "__main__":
    app = wx.App(False)
    frame = MyForm()
    frame.Show()
    app.MainLoop()

这与之前对类似问题的回答略有修改。无论如何,让我们看看如何使用对象来代替:

import wx

########################################################################
class Car(object):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, make, model, year, color="Blue"):
        """Constructor"""
        self.make = make
        self.model = model
        self.year = year
        self.color = color


########################################################################
class MyPanel(wx.Panel):
    """"""

    #----------------------------------------------------------------------
    def __init__(self, parent):
        """Constructor"""
        wx.Panel.__init__(self, parent)

        rows = [Car("Ford", "Taurus", "1996"),
                Car("Nissan", "370Z", "2010"),
                Car("Porche", "911", "2009", "Red")
                ]

        self.list_ctrl = wx.ListCtrl(self, size=(-1,100),
                                style=wx.LC_REPORT
                                |wx.BORDER_SUNKEN
                                )
        self.list_ctrl.Bind(wx.EVT_LIST_ITEM_SELECTED, self.onItemSelected)
        self.list_ctrl.InsertColumn(0, "Make")
        self.list_ctrl.InsertColumn(1, "Model")
        self.list_ctrl.InsertColumn(2, "Year")
        self.list_ctrl.InsertColumn(3, "Color")

        index = 0
        self.myRowDict = {}
        for row in rows:
            self.list_ctrl.InsertStringItem(index, row.make)
            self.list_ctrl.SetStringItem(index, 1, row.model)
            self.list_ctrl.SetStringItem(index, 2, row.year)
            self.list_ctrl.SetStringItem(index, 3, row.color)
            self.myRowDict[index] = row
            index += 1

        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
        self.SetSizer(sizer)

    #----------------------------------------------------------------------
    def onItemSelected(self, event):
        """"""
        currentItem = event.m_itemIndex
        car = self.myRowDict[currentItem]
        print car.make
        print car.model
        print car.color
        print car.year

########################################################################
class MyFrame(wx.Frame):
    """"""

    #----------------------------------------------------------------------
    def __init__(self):
        """Constructor"""
        wx.Frame.__init__(self, None, wx.ID_ANY, "List Control Tutorial")
        panel = MyPanel(self)
        self.Show()

#----------------------------------------------------------------------
if __name__ == "__main__":
    app = wx.App(False)
    frame = MyFrame()
    app.MainLoop()

在这里,我们创建了一个 Car 对象列表,并使用点符号将类的属性添加到 ListCtrl。然后,当我们从列表中选择一个项目时,我们从事件对象中获取当前选择的项目并使用字典查找它。不完全简单,但我更喜欢它。您可以在此处阅读有关它的更多信息以及其他提示和技巧。

但是,我认为最好的解决方案是只使用 ObjectListView(一个 ListCtrl 包装器),它将行变成真正的对象,并允许更容易地访问它们的值,以及引入许多其他增强功能。遗憾的是,它还不是普通 wxPython 发行版的一部分,但很容易从PyPI添加。您也可以在博客的这篇文章中阅读更多相关信息!

于 2013-05-03T13:41:56.997 回答