如何在wxPython中清除保存文件对话框文件名

Question

我希望能够在 wxPython 中清除我的保存文件对话框文件名。我的意思是说如果我这样做了

saveFileDialog.GetFilename()

说这会返回

test.txt

我怎样才能做到，所以当我再次执行 GetFilename() 时，它会返回

""

而不是

test.txt

？我不太确定该怎么做，但提前谢谢！

Answer 1

这里我使用SetFilename方法来重置路径

import wx


class MainFrame(wx.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(None, *args, **kwargs)
        self.size = (400, 1000)
        self.Title = 'wx App'
        self.Bind(wx.EVT_CLOSE, self.on_quit_click)

        self.panel = MainPanel(self)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.panel)
        self.SetSizer(sizer)
        self.Center()
        self.Show()
        self.save_dialog = wx.FileDialog(self, style=wx.FD_SAVE)

    def on_save(self, event):
        self.save_dialog.ShowModal()

    def on_check(self, event):
        print(f'filename={self.save_dialog.GetFilename()}')
        self.save_dialog.SetFilename('')

    def on_quit_click(self, event):
        del event
        wx.CallAfter(self.Destroy)


class MainPanel(wx.Panel):
    def __init__(self, parent, *args, **kwargs):
        super().__init__(parent, *args, **kwargs)

        self.parent = parent
        # self.file_picker = wx.FilePickerCtrl(self, style=wx.FLP_SAVE)
        btn_save = wx.Button(self, id=wx.ID_SAVE)
        btn_save.Bind(wx.EVT_BUTTON, self.parent.on_save)
        btn_check = wx.Button(self, id=wx.ID_OK)
        btn_check.Bind(wx.EVT_BUTTON, self.parent.on_check)
        sizer = wx.BoxSizer(wx.VERTICAL)
        # sizer.Add(self.file_picker)
        sizer.Add(btn_save)
        sizer.Add(btn_check)
        self.SetSizer(sizer)

if __name__ == '__main__':
wx_app = wx.App()
MainFrame()
wx_app.MainLoop()