在我提出问题之前，我已经到处寻找并试图找到解决方案，但找不到解决方案。
我在Tkinter中构建了一个简单的GUI。目标是首先根据下拉框中的选择进行选择。 在我的例子中，主题是＆＃34;网球＆＃34;。
我的目标是用户可以先选择＆＃34; surface＆＃34;在网球比赛上进行的比赛。我们有3个选择。 Hard Court，Clay Court或Grass Court。
基于所做的选择，我想要加载不同的csv文件。
每个csv文件都根据特定的网球表面保存数据。
我现在的问题是，如何根据第一个下拉框中的选择加载csv文件？ csv文件与我的脚本位于同一目录中。
from Tkinter import *
import ttk
import csv
master = Tk()
master.option_add("*Font", "{Bodoni MT} 8")
content = ttk.Frame(master, padding=(12, 12, 12, 12))
frame = ttk.Frame(content, borderwidth=5, relief="groove", width=300, height=100)
content.grid(column=0, row=0, sticky=(N, S, E, W))
frame.grid(column=0, row=0, columnspan=4, rowspan=2, sticky=(N, S, E, W))
text = Text(content, height=8, width=13)
text.grid(row=0, column=4, columnspan=2, rowspan=2, sticky=(N, S, E, W))
v1player1 = StringVar()
v2player1 = StringVar()
c_player1 = Label(frame, text="Service Points Win %:").grid(row=6, column=1, sticky='w')
cc_player1 = Entry(frame, text="value", textvariable=v1player1, justify='center', width=10).grid(row=6, column=2)
d_player1 = Label(frame, text="Return Points Win %: ").grid(row=7, column=1, sticky='w')
dd_player1 = Entry(frame, text="value", textvariable=v2player1, justify='center', width=10).grid(row=7, column=2)
def new_selection_surface(event):
return surface()
surface_types = ['ATP Hard Court', 'ATP Clay Court', 'ATP Grass Court']
box_value_surface = StringVar()
box = ttk.Combobox(frame, textvariable=box_value_surface, justify='center')
box.bind("<<ComboboxSelected>>", new_selection_surface)
box['values'] = surface_types
box.current()
box.grid(column=2, row=1, pady=10, padx=15)
def surface():
if 'ATP Hard Court' in box_value_surface.get():
return 'match_stats_atp_.csv'
else:
if 'ATP Clay Court' in box_value_surface.get():
return 'match_stats_atp_1.csv'
else:
if 'ATP Grass Court' in box_value_surface.get():
return 'match_stats_atp_10.csv'
f = open('CSV FILE BASED ON SELECTION 1st DROPDOWN BOX')
csv_f = csv.reader(f)
players_names = []
for row in csv_f:
players_names.append(row[2])
def new_selection_p1(event):
return player1()
box_value_p1 = StringVar()
box = ttk.Combobox(frame, textvariable=box_value_p1, justify='center')
box.bind("<<ComboboxSelected>>", new_selection_p1)
box['values'] = players_names
box.current()
box.grid(column=2, row=2, pady=10, padx=15)
def player1():
with open('CSV FILE BASED ON SELECTION 1st DROPDOWN BOX') as csvfile:
read_csv = csv.reader(csvfile, delimiter=',')
service_points_wins = []
return_points_wins = []
names = []
for row in read_csv:
name = row[2]
services_point = row[10]
returns_point = row[4]
service_points_wins.append(services_point)
return_points_wins.append(returns_point)
names.append(name)
what_name = (box_value_p1.get())
name_dex = names.index(what_name)
service_points_wins = service_points_wins[name_dex]
points_services_point = return_points_wins[name_dex]
v1player1.set(service_points_wins.replace("%", ''))
v2player1.set(points_services_point.replace("%", ''))
run = ttk.Button(content, text='Run')
run.grid(column=4, row=3)
cancel = ttk.Button(content, text="Cancel", command=master.destroy)
cancel.grid(column=5, row=3)
master.columnconfigure(0, weight=1)
master.rowconfigure(0, weight=1)
content.columnconfigure(0, weight=3)
content.columnconfigure(1, weight=3)
content.columnconfigure(2, weight=3)
content.columnconfigure(3, weight=1)
content.columnconfigure(4, weight=1)
content.rowconfigure(1, weight=1)
master.geometry("1000x500+100+100")
master.mainloop()
答案 0 :(得分：0)
了解代码的作用非常重要。您尝试做的是在程序启动时打开文件，而文件名只能在用户选择了一个选项后的某个时间才知道。
因此，您需要确保仅在知道文件名时才执行file.open()。这意味着它应该仅在通过func
box1.bind("<<ComboboxSelected>>", func)内发生
在此功能中，您只需获取当前选择的下拉列表并使用它来确定文件名。这可以通过字典有效地完成。
这是可能为您解决问题的代码：
from Tkinter import *
import ttk
import csv
players_names = []
surface_types = ['ATP Hard Court', 'ATP Clay Court', 'ATP Grass Court']
choices = {'ATP Hard Court' : 'match_stats_atp_.csv' ,
'ATP Clay Court' : 'match_stats_atp_1.csv' ,
'ATP Grass Court' : 'match_stats_atp_10.csv'}
master = Tk()
content = ttk.Frame(master, padding=(12, 12, 12, 12))
frame = ttk.Frame(content, borderwidth=5, relief="groove", width=300, height=100)
content.grid(column=0, row=0, sticky=(N, S, E, W))
frame.grid(column=0, row=0, columnspan=4, rowspan=2, sticky=(N, S, E, W))
text = Text(content, height=8, width=13)
text.grid(row=0, column=4, columnspan=2, rowspan=2, sticky=(N, S, E, W))
v1player1 = StringVar()
v2player1 = StringVar()
c_player1 = Label(frame, text="Service Points Win %:").grid(row=6, column=1, sticky='w')
cc_player1 = Entry(frame, text="value", textvariable=v1player1, justify='center', width=10).grid(row=6, column=2)
d_player1 = Label(frame, text="Return Points Win %: ").grid(row=7, column=1, sticky='w')
dd_player1 = Entry(frame, text="value", textvariable=v2player1, justify='center', width=10).grid(row=7, column=2)
def surface(event):
players_names = []
surface_selection = box_value_surface.get()
try:
f = open(choices[surface_selection])
csv_f = csv.reader(f)
for row in csv_f:
players_names.append(row[2])
f.close()
except:
#this except is only to make it work without having the csv files at hand
for name in ["Henry", "Donovan", "John"]:
players_names.append(name)
box2['values'] = players_names
def player1(event):
surface_selection = box_value_surface.get()
with open(choices[surface_selection]) as csvfile:
read_csv = csv.reader(csvfile, delimiter=',')
service_points_wins = []
return_points_wins = []
names = []
for row in read_csv:
name = row[2]
services_point = row[10]
returns_point = row[4]
service_points_wins.append(services_point)
return_points_wins.append(returns_point)
names.append(name)
what_name = (box_value_p1.get())
name_dex = names.index(what_name)
service_points_wins = service_points_wins[name_dex]
points_services_point = return_points_wins[name_dex]
v1player1.set(service_points_wins.replace("%", ''))
v2player1.set(points_services_point.replace("%", ''))
box_value_surface = StringVar()
box1 = ttk.Combobox(frame, textvariable=box_value_surface, justify='center')
box1['values'] = surface_types
box1.bind("<<ComboboxSelected>>", surface)
box1.grid(column=2, row=1, pady=10, padx=15)
box_value_p1 = StringVar()
box2 = ttk.Combobox(frame, textvariable=box_value_p1, justify='center')
box2.bind("<<ComboboxSelected>>", player1)
box2['values'] = players_names
box2.grid(column=2, row=2, pady=10, padx=15)
run = ttk.Button(content, text='Run')
run.grid(column=4, row=3)
cancel = ttk.Button(content, text="Cancel", command=master.destroy)
cancel.grid(column=5, row=3)
master.mainloop()