事件在wxpython中获取值

Question

我在使用 wxpython 时遇到问题。我尝试从一列中获取一个值，我也想在按下按钮后输出到另一列。但是，我不知道要添加什么代码才能使这项工作正常进行。

我现在的代码是这样的：

import wx

class scarlett(wx.Frame):
  def __init__(self, parent, id, title):
    wx.Frame.__init__(self, parent, id, title, size=(400, 350))

    panel = wx.Panel(self, -1)
    sizer = wx.GridBagSizer(4, 4)

    text1 = wx.StaticText(panel, -1, 'Scarlett')
    sizer.Add(text1, (0, 0), flag = wx.TOP | wx.LEFT | wx.BOTTOM, border=5)
    tc = wx.TextCtrl(panel, -1)
    sizer.Add(tc, (1, 0), (1, 6), wx.EXPAND |wx.LEFT | wx.RIGHT, 5)

    text2 = wx.StaticText(panel, -1, 'You')
    sizer.Add(text2, (2, 0), flag = wx.TOP | wx.LEFT | wx.RIGHT, border = 5 )
    list = wx.ListBox(panel, -1, style = wx.LB_ALWAYS_SB)
    sizer.Add(list, (3, 0), (3, 6), wx.EXPAND |wx.LEFT | wx.RIGHT, 5)

    buttonOk = wx.Button(panel, -1, 'Ok', size=(90, 28))
    buttonCancel = wx.Button(panel, -1, 'Cancel', size=(90, 28))
    sizer.Add(buttonOk, (7, 1))
    sizer.Add(buttonCancel, (7, 2), flag = wx.RIGHT | wx.BOTTOM, border = 5)

    self.Bind(wx.EVT_BUTTON, self.OnQuit, id=buttonCancel.GetId())

    sizer.AddGrowableCol(0)
    sizer.AddGrowableRow(5)
    sizer.AddGrowableRow(6)
    sizer.SetEmptyCellSize((1, 1))
    panel.SetSizer(sizer)

    self.Center()
    self.Show(True)

  def OnQuit(self, event):
    self.Close()


app = wx.App()
scarlett(None, -1, 'scarlett')
app.MainLoop()

Answer 1

如果我没理解错的话，您是想将文本控件中的文本复制到列表框中吗？如果这是正确的，那么您只需保存对控件的引用，以便稍后在事件处理程序函数中访问它们。例如：

import wx

class scarlett(wx.Frame):
  def __init__(self, parent, id, title):
    wx.Frame.__init__(self, parent, id, title, size=(400, 350))

    panel = wx.Panel(self, -1)
    sizer = wx.GridBagSizer(4, 4)

    text1 = wx.StaticText(panel, -1, 'Scarlett')
    sizer.Add(text1, (0, 0), flag = wx.TOP | wx.LEFT | wx.BOTTOM, border=5)
    self.tc = wx.TextCtrl(panel, -1)
    sizer.Add(self.tc, (1, 0), (1, 6), wx.EXPAND |wx.LEFT | wx.RIGHT, 5)

    text2 = wx.StaticText(panel, -1, 'You')
    sizer.Add(text2, (2, 0), flag = wx.TOP | wx.LEFT | wx.RIGHT, border = 5 )
    self.listbox = wx.ListBox(panel, -1, style = wx.LB_ALWAYS_SB)
    sizer.Add(self.listbox, (3, 0), (3, 6), wx.EXPAND |wx.LEFT | wx.RIGHT, 5)

    buttonOk = wx.Button(panel, -1, 'Ok', size=(90, 28))
    buttonCancel = wx.Button(panel, -1, 'Cancel', size=(90, 28))
    sizer.Add(buttonOk, (7, 1))
    sizer.Add(buttonCancel, (7, 2), flag = wx.RIGHT | wx.BOTTOM, border = 5)

    self.Bind(wx.EVT_BUTTON, self.OnQuit, buttonCancel)
    self.Bind(wx.EVT_BUTTON, self.OnCopyText, buttonOk)

    sizer.AddGrowableCol(0)
    sizer.AddGrowableRow(5)
    sizer.AddGrowableRow(6)
    sizer.SetEmptyCellSize((1, 1))
    panel.SetSizer(sizer)

    self.Center()
    self.Show(True)

  def OnQuit(self, event):
    self.Close()

  def OnCopyText(self, event):
    self.listbox.Append(self.tc.GetValue())

app = wx.App()
frm = scarlett(None, -1, "scarlett")
app.MainLoop()

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