python - wxpython ListCtrl 无法更改所选项目的颜色

Question

作为标题，我不明白为什么我不能更改所选项目的背景颜色。这是我的代码...

self.listaFatture = wx.ListCtrl(self, size=(frame.GetSize().Width - 30, frame.GetSize().Height - 250), style=wx.LC_REPORT)
.....

self.listaFatture.Bind(wx.EVT_LIST_ITEM_SELECTED, self.SelezionaFatturaColore)

.....

def SelezionaFatturaColore(self,event):
    print('Selezionato')
    index= event.GetIndex()
    self.listaFatture.SetItemBackgroundColour(index, 'gray')
    self.listaFatture.SetItemTextColour(index, 'black')

事件被触发但颜色没有改变

提前感谢所有试图帮助我的人

Answer 1

我找到了一个解决方法，我不知道是否是一个错误。

我用-1设置了一个变量，之后，当我选择一行时，我记得索引，我在设置颜色后取消选择它...

阅读代码更简单...

self.lastSelected = -1
....
self.listaFatture.Bind(wx.EVT_LIST_ITEM_SELECTED, self.SelezionaFatturaColore)
....
def SelezionaFatturaColore(self,event):
    print('Selezionato')
    index= event.GetIndex()
    if self.lastSelected > -1:
        if self.lastSelected % 2 == 0:
           self.listaFatture.SetItemBackgroundColour(self.lastSelected, wx.Colour(255,255,255,255))
        else:
            self.listaFatture.SetItemBackgroundColour(self.lastSelected, wx.Colour(152,245,255,255))

    self.listaFatture.SetItemState(index, 0, wx.LIST_STATE_SELECTED)

    self.listaFatture.SetItemBackgroundColour(index, wx.Colour(128,128,128,255))
    self.listaFatture.SetItemTextColour(index, wx.Colour(0,0,0,255))
    self.lastSelected = index