Question

我使用wxPython在Python中创建一个实用程序，但是我无法将方法绑定到按钮。

有趣的是，我已经以完全相同的方式绑定了另一个按钮（self.add_employee_to_list），但是那个按钮有效。

class MyDialog(wx.Frame):

    def __init__(self, parent, title):
        self.no_resize = wx.DEFAULT_FRAME_STYLE & ~ (wx.RESIZE_BORDER | wx.MAXIMIZE_BOX)
        wx.Frame.__init__(self, parent, title=title, size=(500, 450),style = self.no_resize)

        self.panel = wx.Panel(self, size=(250, 270))

        self.add_employee_to_list = wx.Button(self.panel, label="Add Employee", pos=(250,50), size=(115,25))
        self.add_employee_to_list.Bind(wx.EVT_BUTTON, self.add_employee_to_box)

        #Button that produces error on binding
        self.remove_employee_from_list = wx.Button(self.panel, label="Remove Employee",pos= (250,80), size=(115,25))
        self.remove_employee_from_list.Bind(wx.EVT_BUTTON, self.remove_employee_from_list)


    def remove_employee_from_list(self, event):
        pass

app = wx.App(False)
frame = MyDialog(None, "Crystal Rose")
app.MainLoop()

我收到以下错误：

Traceback (most recent call last):   File "C:/Users/SR/PycharmProjects/CrystalRose/CrystalRoseGUI.py", line 59, in <module>
    frame = MyDialog(None, "Crystal Rose")   File "C:/Users/SR/PycharmProjects/CrystalRose/CrystalRoseGUI.py", line 22, in __init__
    self.remove_employee_from_list.Bind(wx.EVT_BUTTON, self.remove_employee_from_list)   File "C:\Program Files (x86)\Python36-32\lib\site-packages\wx\core.py", line 1339, in
_EvtHandler_Bind
    assert callable(handler) or handler is None AssertionError

Answer 1

您将remove_employee_from_list声明为方法，并将其设置为__init__中的按钮。触发的按钮和方法不一样，需要不同的名称。试试这个：

import wx

class MyDialog(wx.Frame):

    def __init__(self, parent, title):
        self.no_resize = wx.DEFAULT_FRAME_STYLE & ~ (wx.RESIZE_BORDER | wx.MAXIMIZE_BOX)
        wx.Frame.__init__(self, parent, title=title, size=(500, 450),style = self.no_resize)

        self.panel = wx.Panel(self, size=(250, 270))

        self.add_employee_to_list = wx.Button(self.panel, label="Add Employee", pos=(250,50), size=(115,25))
        self.add_employee_to_list.Bind(wx.EVT_BUTTON, self.add_employee_to_box)

        #Button that produces error on binding
        self.remove_employee_from_list = wx.Button(self.panel, label="Remove Employee",pos= (250,80), size=(115,25))
        self.remove_employee_from_list.Bind(wx.EVT_BUTTON, self.remove_employee_from_box) 


    def remove_employee_from_box(self, event):
        pass

    def add_employee_to_box(self, event):
        pass

app = wx.App(False)
frame = MyDialog(None, "Crystal Rose")
frame.Show()
app.MainLoop()

无法将事件处理程序绑定到按钮

1 个答案: