Question

我正在尝试在tkinter中创建一个自定义框架，Python v2.7。我做了一次这么好（带滚动条的框架），但我的第二次尝试不起作用。我将它与可行的框架进行比较，我无法理解我所做的不同。

我想要的是一个框架下面有一个小分隔线，所以我创建了一个“普通”框架，一个薄框架用作它下面的分隔符，还有一个bigFrame来支撑它。

我在课堂上创作的所有内容都有效，除了框架本身。希望我的评论解释什么是和不显示。

from Tkinter import *

class FunFrame(Frame):
    def __init__(self, master, lbl,  **kwargs):
        self.bigFrame = Frame(master) 
        Frame.__init__(self, self.bigFrame, width=280, height=200, bg="red", **kwargs)
        self.grid(row=0, column=0, pady=3) #this is in bigFrame, and doesn't display
                                    #however the padding is still respected
        self.separator = Frame(self.bigFrame, height=2, bd=1, width=280, relief = SUNKEN)
        self.separator.grid(row=1, column=0) #this is in bigFrame, and displays

        self.l = Label(self, text=lbl) #this is in self and doesn't display
        self.l.grid(row=0, column=0)


    def grid(self, **kwargs):
        self.bigFrame.grid(**kwargs)

if __name__ == "__main__":
    root=Tk()
    Frame1=FunFrame(root, "hello")
    Frame2=FunFrame(root, "world")
    Frame1.grid(row=0, column=0)
    Frame2.grid(row=1, column=0)
    root.mainloop()

Answer 1

如果您在self.grid中致电__init__，则会调用您自己的grid，而不是Tkinter的版本。

尝试关注（将grid重命名为grid_）：

from Tkinter import *

class FunFrame(Frame):
    def __init__(self, master, lbl,  **kwargs):
        self.bigFrame = Frame(master) 
        Frame.__init__(self, self.bigFrame, width=280, height=200, bg="red", **kwargs)
        self.grid(row=0, column=0, pady=3)
        self.separator = Frame(self.bigFrame, height=2, bd=1, width=280, relief=SUNKEN)
        self.separator.grid(row=1, column=0)

        self.l = Label(self, text=lbl)
        self.l.grid(row=0, column=0)

    def grid_(self, **kwargs): ######## grid -> grid_
        self.bigFrame.grid(**kwargs)

if __name__ == "__main__":
    root=Tk()
    Frame1 = FunFrame(root, "hello")
    Frame2 = FunFrame(root, "world")
    Frame1.grid_(row=0, column=0) ######## grid -> grid_
    Frame2.grid_(row=1, column=0) ######## grid -> grid_
    root.mainloop()

我宁愿编写如下代码（if '....'用于直观地表示层次结构）：

from Tkinter import *

class FunFrame(Frame):
    def __init__(self, master, lbl,  **kwargs):
        Frame.__init__(self, master)
        if 'inside outer frame (self)':
            innerFrame = Frame(self, width=280, height=200, bg="red", **kwargs)
            innerFrame.grid(row=0, column=0, pady=3)
            if 'inside inner frame':
                self.l = Label(innerFrame, text=lbl)
                self.l.grid(row=0, column=0)
            separator = Frame(self, height=2, bd=1, width=280, relief=SUNKEN)
            separator.grid(row=1, column=0)

if __name__ == "__main__":
    root = Tk()
    Frame1 = FunFrame(root, "hello")
    Frame2 = FunFrame(root, "world")
    Frame1.grid(row=0, column=0)
    Frame2.grid(row=1, column=0)
    root.mainloop()

Tkinter自定义框架无法正常工作

1 个答案: