Question

我的代码有3个ListBox。我在每个上面附加了一个ListBoxSelect，所以当我点击一个listBox时，它会选择另一个列表框的同一行。

def __init__(self, master, lists):
    Frame.__init__(self, master)
    self.lists = []
    for column,size in lists:
        frame = Frame(self); frame.pack(side=LEFT, expand=YES, fill=BOTH)
        Label(frame, text=column, borderwidth=1, relief=RAISED).pack(fill=X)
        lb = Listbox(frame, width=size, borderwidth=1, selectborderwidth=1, relief=FLAT, export=FALSE)
        lb.pack(expand=YES, fill=BOTH)
        lb.bind('<<ListboxSelect>>',self.immediately)
        lb.bind("<MouseWheel>", self._on_mousewheel)
        self.lists.append(lb)

def immediately(self, e):
    #Find the element
    for elem in self.lists:
        num = elem.curselection()
        if len(num) == 1:
            break
    #Unselect every element
    for elem in self.lists:
        elem.selection_clear(0,elem.size())
    #Select elements in the same row
    for i in range(self.lists[0].size()):
        for elem in self.lists:
            elem.selection_set(num[0])

if __name__ == '__main__':
   window = Tk()
   window.title("Account Manager")
   window.resizable(0,0)
   window.geometry('+100+200')
   accountList = MultiListbox(window, (('Website', 20), ('Account Name', 20), ('Password', 20)))
   accountList.pack(expand=YES,fill=BOTH)
   accountList.loadListFromFile()
   window.mainloop()

在第一次点击（无论在哪个列表框上），它完美无缺。在第二次单击时，它只适用于第一个listBox，另外两个没有任何反应。

为什么第二次点击另一个列表框？

感谢。

Answer 1

这是因为您始终在immediately(...)函数的第一个for循环中的第一个列表框中找到所选项。使用e.widget（列表框触发函数）查找所选项目：

def immediately(self, e):
    num = e.widget.curselection()
    for lb in self.lists:
        if lb != e.widget:
            lb.selection_clear(0, lb.size())
            lb.selection_set(num[0])

Tkinter列表框＆lt; <listboxselect>＆gt;不正常

1 个答案: