Question

当您双击变量或文件中的单元格时，是否存在保存编辑的方法？我希望能够编辑单元格并更新我的数据库（.txt文件）。将我从here找到的代码作为可编辑listctrl的示例：

import wx
import wx.lib.mixins.listctrl  as  listmix

########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
    ''' TextEditMixin allows any column to be edited. '''

    #----------------------------------------------------------------------
    def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
                 size=wx.DefaultSize, style=0):
        """Constructor"""
        wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
        listmix.TextEditMixin.__init__(self)

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

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

        rows = [("Ford", "Taurus", "1996", "Blue"),
                ("Nissan", "370Z", "2010", "Green"),
                ("Porche", "911", "2009", "Red")
                ]
        self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)

        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
        for row in rows:
            self.list_ctrl.InsertStringItem(index, row[0])
            self.list_ctrl.SetStringItem(index, 1, row[1])
            self.list_ctrl.SetStringItem(index, 2, row[2])
            self.list_ctrl.SetStringItem(index, 3, row[3])
            index += 1

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


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

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

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

编辑：萨克森的罗尔夫提供的解决方案的印刷输出：

Ford Taurus 1996 Blue
Changed Item:  Column: 3

Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red

Entire listctrl AFTER the update:
Ford Taurus 1996 
Nissan 370Z 2010 Green
Porche 911 2009 Red

Data for export
Ford Taurus 1996 
Nissan 370Z 2010 Green
Porche 911 2009 Red

正如您所看到的，如果我像您一样尝试编辑它，则不会显示任何内容。

Answer 1

我假设你想知道如何访问listctrl中的数据而不是写入文件。
可编辑的listctrl是一个偷偷摸摸的野兽，因为你在编辑后看到的内容实际上不在数据中，直到你更新它（self.list_ctrl.SetStringItem()。方法是绑定到wx.EVT_LIST_END_LABEL_EDIT并执行已更改的listctrl项的更新这个例子，希望向您展示如何访问更改的项目，访问整个listctrl，执行更新，访问整个（更新的）listctrl，最后创建可导出的数据。

每次编辑后都会进行打印和输出。实际上，您可以在退出时或通过单击按钮来执行数据导出，例如，不是在每次编辑之后。

import wx
import wx.lib.mixins.listctrl  as  listmix

########################################################################
class EditableListCtrl(wx.ListCtrl, listmix.TextEditMixin):
    ''' TextEditMixin allows any column to be edited. '''

    #----------------------------------------------------------------------
    def __init__(self, parent, ID=wx.ID_ANY, pos=wx.DefaultPosition,
                 size=wx.DefaultSize, style=0):
        """Constructor"""
        wx.ListCtrl.__init__(self, parent, ID, pos, size, style)
        listmix.TextEditMixin.__init__(self)

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

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

        rows = [("Ford", "Taurus", "1996", "Blue"),
                ("Nissan", "370Z", "2010", "Green"),
                ("Porche", "911", "2009", "Red")
                ]
        self.list_ctrl = EditableListCtrl(self, style=wx.LC_REPORT)

        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
        for row in rows:
            self.list_ctrl.InsertStringItem(index, row[0])
            self.list_ctrl.SetStringItem(index, 1, row[1])
            self.list_ctrl.SetStringItem(index, 2, row[2])
            self.list_ctrl.SetStringItem(index, 3, row[3])
            index += 1
        self.list_ctrl.Bind(wx.EVT_LIST_END_LABEL_EDIT, self.OnUpdate)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5)
        self.SetSizer(sizer)

    def OnUpdate(self, event):
        row_id = event.GetIndex() #Get the current row
        col_id = event.GetColumn () #Get the current column
        new_data = event.GetLabel() #Get the changed data
        cols = self.list_ctrl.GetColumnCount() #Get the total number of columns
        rows = self.list_ctrl.GetItemCount() #Get the total number of rows

        #Get the changed item use the row_id and iterate over the columns
        print (" ".join([self.list_ctrl.GetItem(row_id, colu_id).GetText() for colu_id in range(cols)]))
        print "Changed Item:", new_data, "Column:", col_id

        #Get the entire listctrl iterate over the rows and the columns within each row
        print "\nEntire listctrl BEFORE the update:"
        for row in range(rows):
            row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
            print row_data

        #Set the new data in the listctrl
        self.list_ctrl.SetStringItem(row_id,col_id,new_data)

        print "\nEntire listctrl AFTER the update:"
        #Create a list that can be used to export data to a file
        data_for_export=[]
        for row in range(rows):
            row_data = (" ".join([self.list_ctrl.GetItem(row, col).GetText() for col in range(cols)]))
            print row_data
            data_for_export.append(row_data) #Add to the exportable data

        print "\nData for export"
        for row in data_for_export: #Print the data
            print row

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

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

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

编辑：
将Ford Taurus 1996 Blue改为Ford Taurus 1996 Green的印刷结果

Ford Taurus 1996 Blue
Changed Item: Green Column: 3

Entire listctrl BEFORE the update:
Ford Taurus 1996 Blue
Nissan 370Z 2010 Green
Porche 911 2009 Red

Entire listctrl AFTER the update:
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red

Data for export
Ford Taurus 1996 Green
Nissan 370Z 2010 Green
Porche 911 2009 Red

在Linux OS上，wxpython'2.8.12.1（gtk2-unicode）'

从可编辑的wx.ListCtrl保存编辑 - wxPython

1 个答案: