更新listctrl项目

Question

所以我得到的东西自动添加项目的列表。我的问题围绕给定的代码波纹管现在各地更新条目。当我选择该项目，并尝试通过更新按钮更新它通过更新我得到的是这样的

Traceback (most recent call last): 
File "C:\Users\Owner\Desktop\sad pROG\customer_app.py", line 97, in update_entry 
entry = self.entrydict[self.list.GetItemText(long(self.index))] 
KeyError: u'C0004' 

更换TE getItemText（）机智产卵的GetItem这个错误

Traceback (most recent call last): 
    File "C:\Users\Owner\Desktop\sad pROG\customer_app.py", line 97, in update_entry 
    entry = self.entrydict[self.list.GetItem(long(self.index))] 
KeyError: <wx._controls.ListItem; proxy of <Swig Object of type 'wxListItem *' at 0x25b7d60> > 





from wx import * 
import Customer as c 
class CustomerMain (wx.Frame): 

    def __init__(self, parent): 
     wx.Frame.__init__ (self, parent, id = wx.ID_ANY, title = u"Customers", pos = wx.DefaultPosition, size = wx.Size(517,486), style = wx.DEFAULT_FRAME_STYLE|wx.TAB_TRAVERSAL) 

     self.SetSizeHintsSz(wx.Size(-1,-1), wx.DefaultSize) 

     bSizer3 = wx.BoxSizer(wx.VERTICAL) 


     # Create a customer 
     self.cust = c.Customer() 



     self.list = wx.ListCtrl(self, wx.ID_ANY, wx.DefaultPosition, wx.DefaultSize,wx.LC_REPORT) 
     self.list.InsertColumn(0,"ID") 
     self.list.InsertColumn(1,"First Name") 
     self.list.InsertColumn(2,"Last Name") 
     self.list.Bind(EVT_LIST_ITEM_SELECTED,self.GetSelectedItems) 
     self.list.SetMinSize(wx.Size(500,300)) 
     self.list.SetMaxSize(wx.Size(1000,800)) 
     self.refresh_list(None) 

     bSizer3.Add(self.list, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL, 5) 

     bSizer4 = wx.BoxSizer(wx.HORIZONTAL) 
     self.m_button20 = wx.Button(self, wx.ID_ANY, u"Add Customer", wx.DefaultPosition, wx.DefaultSize, 0) 
     self.m_button20.Bind(wx.EVT_BUTTON, self.add_entry) 
     bSizer4.Add(self.m_button20, 1, wx.ALL|wx.ALIGN_CENTER_VERTICAL, 5) 

     self.m_button21 = wx.Button(self, wx.ID_ANY, u"Update Record", wx.DefaultPosition, wx.DefaultSize, 0) 
     self.m_button21.Bind(wx.EVT_BUTTON, self.update_entry) 
     bSizer4.Add(self.m_button21, 1, wx.ALIGN_CENTER_VERTICAL|wx.ALL, 5) 





     bSizer3.Add(bSizer4, 1, wx.EXPAND, 5) 

     self.SetSizer(bSizer3) 
     self.Layout() 

     self.Centre(wx.BOTH) 
     self.Show() 

    def refresh_list(self, event): 
     """Place the names of each CustomerEntry into the list""" 

     index = 0 
     self.entrydict = {} 
     self.list.DeleteAllItems() 
     for entry in self.cust.list_entries(): 
      self.list.InsertStringItem(index,entry.Cust_ID) 
      self.list.SetStringItem(index,1,entry.F_Name) 
      self.list.SetStringItem(index,2,entry.L_Name) 
      self.entrydict[index] = entry 
      index += 1 


    def GetSelectedItems(self, event): 
     """ Gets the selected items for the list control. 
     Selection is returned as a list of selected indices, 
     low to high. 
     """ 
     selection = [] 
     self.index = self.list.GetFirstSelected() 
     selection.append(self.index) 
     while len(selection) != self.list.GetSelectedItemCount(): 
      self.index = self.list.GetNextSelected(self.index) 
      selection.append(self.index) 

     return self.index 


    def add_entry(self, event): 
     """Add a new entry to the Address cust""" 
     # start out with blank, generic CustomerEntry 
     entry = c.CustomerEntry("","","","","") 
     self.endiag = CustomerDetail(self,entry) 
     self.endiag.ShowModal()   



     self.cust.add_entry(entry.Cust_ID, 
          entry.F_Name, 
          entry.L_Name, 
          entry.Address, 
          entry.Cust_Stat) 

     self.refresh_list(None) 

    def update_entry(self, event): 
     entry = self.entrydict[self.list.GetItemText(long(self.index))] 
     self.endiag2 = CustomerDetail(self , entry) 
     self.endiag2.ShowModal() 

     self.cust.update_entry(entry.Cust_ID, 
          entry.F_Name, 
          entry.L_Name, 
          entry.Address, 
          entry.Cust_Stat) 

     self.refresh_list(None) 

def __del__(self): 
    pass 


class CustomerDetail (wx.Dialog): 

    def __init__(self, parent, entry): 
      wx.Dialog.__init__ (self, parent, id = wx.ID_ANY, title = wx.EmptyString, pos = wx.DefaultPosition, size = wx.Size(690,500), style = wx.DEFAULT_DIALOG_STYLE) 

      self.entry = entry 
      self.SetSizeHintsSz(wx.Size(500,500), wx.DefaultSize) 

      bSizer6 = wx.BoxSizer(wx.VERTICAL) 

      gSizer6 = wx.GridSizer(2, 2, 0, 0) 

      self.m_staticText5 = wx.StaticText(self, wx.ID_ANY, u"ID", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_staticText5.Wrap(-1) 
      gSizer6.Add(self.m_staticText5, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.Cust_ID = wx.TextCtrl(self, wx.ID_ANY, wx.EmptyString, wx.DefaultPosition, wx.DefaultSize, 0) 
      self.Cust_ID.SetMinSize(wx.Size(200,15)) 
      self.Cust_ID.SetMaxSize(wx.Size(500,15)) 

      gSizer6.Add(self.Cust_ID, 1, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.ALL|wx.EXPAND, 5) 

      self.m_staticText6 = wx.StaticText(self, wx.ID_ANY, u"First Name", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_staticText6.Wrap(-1) 
      gSizer6.Add(self.m_staticText6, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.F_Name = wx.TextCtrl(self, wx.ID_ANY, wx.EmptyString, wx.DefaultPosition, wx.DefaultSize, 0) 
      self.F_Name.SetMinSize(wx.Size(200,15)) 
      self.F_Name.SetMaxSize(wx.Size(500,15)) 

      gSizer6.Add(self.F_Name, 0, wx.ALL|wx.ALIGN_CENTER_VERTICAL|wx.ALIGN_CENTER_HORIZONTAL|wx.EXPAND, 5) 

      self.m_staticText7 = wx.StaticText(self, wx.ID_ANY, u"Last Name", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_staticText7.Wrap(-1) 
      gSizer6.Add(self.m_staticText7, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.L_Name = wx.TextCtrl(self, wx.ID_ANY, wx.EmptyString, wx.DefaultPosition, wx.DefaultSize, 0) 
      self.L_Name.SetMinSize(wx.Size(200,15)) 
      self.L_Name.SetMaxSize(wx.Size(500,15)) 

      gSizer6.Add(self.L_Name, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.EXPAND|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.m_staticText8 = wx.StaticText(self, wx.ID_ANY, u"Address", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_staticText8.Wrap(-1) 
      gSizer6.Add(self.m_staticText8, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.Address = wx.TextCtrl(self, wx.ID_ANY, wx.EmptyString, wx.DefaultPosition, wx.DefaultSize, 0) 
      self.Address.SetMinSize(wx.Size(200,15)) 
      self.Address.SetMaxSize(wx.Size(500,15)) 

      gSizer6.Add(self.Address, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.EXPAND, 5) 

      self.m_staticText12 = wx.StaticText(self, wx.ID_ANY, u"Status", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_staticText12.Wrap(-1) 
      gSizer6.Add(self.m_staticText12, 0, wx.ALL|wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL, 5) 


      stat_choices = ["Active","Inactive","Archived"] 

      self.Cust_Stat = wx.ComboBox(self, wx.ID_ANY, u"", wx.DefaultPosition, wx.DefaultSize, stat_choices, 0) 
      self.Cust_Stat.SetMinSize(wx.Size(200,15)) 
      self.Cust_Stat.SetMaxSize(wx.Size(300,15)) 
      self.Cust_Stat.Bind(wx.EVT_COMBOBOX, self.OnSelect) 
      gSizer6.Add(self.Cust_Stat, 0, wx.ALL, 5) 

      bSizer6.Add(gSizer6, 1, wx.EXPAND, 5) 

      bSizer13 = wx.BoxSizer(wx.HORIZONTAL) 

      self.m_button24 = wx.Button(self, wx.ID_ANY, u"ok", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_button24.Bind(wx.EVT_BUTTON, self.ok) 

      bSizer13.Add(self.m_button24, 1, wx.ALL|wx.ALIGN_CENTER_VERTICAL, 5) 

      self.m_button25 = wx.Button(self, wx.ID_ANY, u"cancel", wx.DefaultPosition, wx.DefaultSize, 0) 
      self.m_button25.Bind(wx.EVT_BUTTON, self.closeDial) 

      bSizer13.Add(self.m_button25, 1, wx.ALL|wx.ALIGN_CENTER_VERTICAL, 5) 

      bSizer6.Add(bSizer13, 1, wx.EXPAND, 5) 

      self.SetSizer(bSizer6) 
      self.Layout() 

      self.Centre(wx.BOTH) 

    def OnSelect (self, event): 
     self.Cust_Stat.GetValue() 



    def closeDial(self,event): 

     self.Destroy() 


    def ok(self, event): 
     self.entry.set_details(str(self.Cust_ID.GetValue()), 
          str(self.F_Name.GetValue()), 
          str(self.L_Name.GetValue()), 
          str(self.Address.GetValue()), 
          str(self.Cust_Stat.GetValue())) 
     self.Destroy() 


     def __del__(self): 
      pass     
def main(): 


ex = wx.App() 
    CustomerMain(None) 
    ex.MainLoop()  


if __name__ == '__main__': 
    main() 

不知道什么在世界上错误的意思。有任何想法吗？

Answer 1

1.To得到的ListCtrl选择项目列表中，存在wx.lib.mixins.listctrl功能getListCtrlSelection，所以你GetSelectedItems方法可以改写为

def GetSelectedItems(self, event): 
    from wx.lib.mixins.listctrl import getListCtrlSelection 
    self.index = getListCtrlSelection(self.list) 
    return self.index 

2. self.index是索引列表，ListCtrl.GetItemText需要一个指数作为输入，因此要获得选择的项目，你可以使用列表中理解的列表：

items = [self.list.GetItemText(i) for i in self.index] 

然后，你可以根据你所拥有的从self.entrydict得到的条目从self.list：

entries = [self.entrydict[item] for item in items] 

Answer 2

Python引发每当请求一个字典（）对象中的KeyError异常（使用 的格式的= adict [键]）和钥匙不在字典中。

Doc on Keyerror is here.

所以最有可能，self.list.GetItemText(long(self.index))是你self.entrydict NE关键。你可以用print()声明检查吗？