滚动条消失[Tkinter，树状视图]

Question

我有一个问题：当表格中有大量列时，它们会随着滚动超出窗口字段

请告诉我出了什么问题

我的代码：

from tkinter import *
from tkinter import ttk

class Main:
    def __init__(self):
        self.root = Tk()
        self.root.geometry('500x300')

    def run(self):
        self.interface()
        self.content()

    def interface(self):

        frame = Frame()
        frame.pack(fill = BOTH, expand=1)
                
        self.tree = ttk.Treeview(frame)
        self.tree.pack(fill = BOTH, expand=1, side=LEFT)

        sc_y = ttk.Scrollbar(frame, orient="vertical", command=self.tree.yview)
        sc_y.pack(side=RIGHT, fill=Y)
          
        self.tree["yscrollcommand"]=sc_y.set

    def content(self):
        people = [("Tom", 38, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Tom", 38, "[email protected]", "Tom", 38, "[email protected]")]

        columns = ("name", "age", "email", "name1", "age1", "email1")

        self.tree.config(columns=columns, show="headings")

        self.tree.heading("name", text="Имя")
        self.tree.heading("age", text="Возраст")
        self.tree.heading("email", text="Email")
        self.tree.heading("name1", text="Имя")
        self.tree.heading("age1", text="Возраст")
        self.tree.heading("email1", text="Email")

        for i in columns:
            self.tree.column(i, stretch=NO)

        for person in people:
            self.tree.insert("", END, values=person)


if __name__ == '__main__':
    A = Main()
    A.run()

我已经审阅了所有的手册、教程。没有人写过这个问题。

Answer 1

这是我所做的小修改。这是一个如何定义

Scrollbar

以及在哪里定义的问题。更改位于函数

interface()

中。

from tkinter import *
from tkinter import ttk

class Main:
    def __init__(self):
        self.root = Tk()
        self.root.geometry('500x300')

    def run(self):
        self.interface()
        self.content()
        self.root.mainloop()

    def interface(self):

        
        frame = Frame()
        frame.pack(fill = BOTH, expand=1)

        sc_y = ttk.Scrollbar(frame, orient="vertical")
        sc_y.pack(side=RIGHT, fill=Y)
                
        self.tree = ttk.Treeview(frame, yscrollcommand=sc_y.set)
        self.tree.pack(fill = BOTH, expand=1, side=LEFT)

        sc_y.config(command=self.tree.yview)

        

    def content(self):
        people = [("Tom", 38, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Bob", 42, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Sam", 28, "[email protected]", "Tom", 38, "[email protected]"),
                  ("Tom", 38, "[email protected]", "Tom", 38, "[email protected]")]

        columns = ("name", "age", "email", "name1", "age1", "email1")

        self.tree.config(columns=columns, show="headings")

        self.tree.heading("name", text="Имя")
        self.tree.heading("age", text="Возраст")
        self.tree.heading("email", text="Email")
        self.tree.heading("name1", text="Имя")
        self.tree.heading("age1", text="Возраст")
        self.tree.heading("email1", text="Email")

        for i in columns:
            self.tree.column(i, stretch=NO)

        for person in people:
            self.tree.insert("", END, values=person)


if __name__ == '__main__':
    A = Main()
    A.run()

这里我向您展示输出 GIF：

更改的是滚动条声明的顺序，以便程序执行流程在正确的位置显示滚动条。

        # First place
        sc_y = ttk.Scrollbar(frame, orient="vertical")
        sc_y.pack(side=RIGHT, fill=Y)

        # Second place                    
        self.tree = ttk.Treeview(frame, yscrollcommand=sc_y.set)
        self.tree.pack(fill = BOTH, expand=1, side=LEFT)

关键是按这个顺序

pack()

，如this答案中提到的：

1. 垂直滚动条。
2. 水平滚动条（如果有的话）。
3. 树状视图。