Question

我创建了一个Menu：

self.commandMenu = Menu(menubar, tearoff = 0)
self.commandMenu.add_command(label = "Rename", accelerator = "Ctrl+R", command = self.onRename, state = "disabled")
self.commandMenu.add_command(label = "Edit module name", command = self.onEditModuleName, state = "disabled")
self.commandMenu.add_command(label = "Create instance", command = self.onCreateInstance, state = "disabled")
self.commandMenu.add_command(label = "Delete instance", command = self.onDeleteInstance, state = "disabled")

我计划稍后配置所有项目，但以下代码一次配置1个项目：

self.commandMenu.entryconfig(1, state = "normal")

有没有办法获取菜单项的总数，或者一次配置所有项目？

Answer 1

您可以使用self.commandMenu.index("end")获取菜单中最后一项的索引。然后，您可以遍历项目以对它们进行全部配置：

last = self.commandMenu.index("end")
for i in range(last+1):
    self.commandMenu.entryconfigure(i, state="normal")

Answer 2

[更新Bryan Oakley的答案]

<Trans id={"hello"}> <strong>world!</strong> </Trans> msgid "hello" msgstr "Hello <0> world! </0>"不起作用。
请改用self.commandMenu.index("end")。

[编辑] 当菜单中没有元素时，请确保捕获错误：self.commandMenu.index(tk.END)将返回index(tk.END)并且您将遇到错误None

菜单总索引计数，菜单项长度

2 个答案: