如何让CustomTkinter的CTkComboBox仅显示5个选项并带滚动条？

要实现CTkComboBox下拉展开时仅显示5个选项并支持滚动浏览，只需利用控件自带的dropdown_max_height参数设置下拉框的最大高度即可。默认每个选项的高度约为22px，设置为110px刚好能容纳5个选项，超出部分会自动生成滚动条。

修改后的完整代码 #

import customtkinter as ctk
import tkinter as tk

window = ctk.CTk()
window.geometry("800x600")  # 修正原代码的几何参数错误，将*改为x

ctk.set_appearance_mode("dark")

price_values = [
    "£50,000", "£60,000", "£70,000", "£80,000", "£90,000", "£100,000",
    "£110,000", "£120,000", "£125,000", "£150,000", "£175,000", "£200,000",
    "£210,000", "£220,000", "£225,000", "£250,000", "£275,000", "£300,000",
    "£325,000", "£350,000", "£375,000", "£400,000", "£425,000", "£450,000",
    "£475,000", "£500,000", "£525,000", "£550,000", "£575,000", "£600,000",
    "£625,000", "£650,000", "£675,000", "£700,000", "£725,000", "£750,000",
    "£775,000", "£800,000", "£825,000", "£850,000", "£875,000", "£900,000",
    "£925,000", "£950,000", "£975,000", "£1,000,000", "£2,000,000", "£3,000,000",
    "£4,000,000", "£5,000,000", "£6,000,000", "£7,000,000", "£8,000,000", "£9,000,000",
    "£10,000,000", "£11,000,000", "£12,000,000", "£13,000,000", "£14,000,000", "£15,000,000"
]

min_price_dropdown = ctk.CTkComboBox(
    window,
    values=price_values,
    dropdown_hover_color="blue",
    width=200,
    border_color="blue",
    dropdown_max_height=110  # 设置下拉框最大高度，刚好显示5个选项
)
min_price_dropdown.pack()
min_price_dropdown.set("Minimum Price")

window.mainloop()

关键说明 #

• dropdown_max_height=110：通过设置该参数限制下拉框的高度，当选项数量超过5个时，自动启用垂直滚动条。
• 修正了原代码中geometry("800*600")的错误，tkinter窗口尺寸参数需使用x而非*。

内容的提问来源于stack exchange，提问作者Zatando1