问题描述
我有一个用 python3 编写的 tk.Frame 应用程序。它有一个主 for。使用 ttk.LabelFrame 循环，我在那里构建了两个 ttk.Treeview，然后每个帧都得到它的 class Application:
def __init__(self,master):
self.master = master
self.database = Database(self.master,self)
self.turns_frame = TurnsFrame(self.master,self)
class TurnsFrame:
def __init__(self,master,app):
self.master = master
self.app = app
self.frame = tk.Frame(self.master,bd=2)
# Create LabelFrames and their Treeviews
for i in range(3):
ap_frame = tk.LabelFrame(self.frame,text="Alien Player {}".format(str(i+1)))
ap_frame.grid(row=0,column=i)
tv = tk.ttk.Treeview(ap_frame,columns=tuple(range(1,12)),show="headings",height=30)
tv.pack()
... creating columns ...
# Create rows
with self.app.database.db:
self.app.database.cursor.execute("SELECT turn,econ_rolls,econ_rolls_extra,cp_fleet,"
"cp_tech,cp_def,fleet_launch,roll_econ,roll_fleet,"
"roll_tech,roll_def FROM aliens{}".format(str(i+1)))
rows = self.app.database.cursor.fetchall()
for r in rows:
tv.insert("","end",values=r)
# Bind row double-click
tv.bind("<Double-1>",self.get_turn_number)
def get_turn_number(self,event):
item_id = event.widget.focus()
item = event.widget.item(item_id)
values = item["values"]
turn_id = values[0]
print("Turn: ",turn_id)
return turn_id
class Database:
def __init__(self,app):
self.master = master
self.app = app
self.folder = os.path.dirname(os.path.abspath(__file__))
self.db = self.create_connection(self.folder)
self.cursor = self.db.cursor()
def create_connection(self,f):
db = None
try:
db = sqlite3.connect(os.path.join(f,"aliens.db"))
except sqlite3.Error as e:
print(e)
return db
def initialize_tables(self,nr):
# SOME OTHER FRAME CALLS THIS FUNCTION AND GIVES THE VARIABLE 'nr'
with self.db:
for i in range(1,nr+1):
# print("Creating table aliens{}".format(str(i)))
self.cursor.execute("CREATE TABLE aliens{}(".format(i) +
"turn INTEGER PRIMARY KEY,"
"econ_rolls INTEGER,"
"econ_rolls_extra INTEGER,"
"cp_fleet INTEGER,"
"cp_tech INTEGER,"
"cp_def INTEGER,"
"fleet_launch STRING,"
"roll_econ STRING,"
"roll_fleet STRING,"
"roll_tech STRING,"
"roll_def STRING)")
def main():
root = tk.Tk()
main_app = Application(root)
root.mainloop()
if __name__ == "__main__":
main()
。每个树视图从不同的表（名为 aliens1 和 aliens2）加载数据：
self.get_turn_number看起来不错，工作正常，看起来像这样 application。
现在我可以双击任何行并执行 ttk.Treeview。
伟大的。
对于进一步的工作，我需要获取它从中加载行的数据库表名称（取决于我双击的树视图 - 第一个 Alien player 1 或第二个 Alien player 2)。 Alien player 1 从表 alien1 加载数据，玩家 2 从 aliens2 加载数据。
我搜索了文档，但在 404 Error: ENOENT: no such file or directory,stat '/app/dist../client/build/index.html'
中没有发现与此相关的任何内容。似乎以前没有人遇到过这个问题。有没有办法做到这一点？
解决方法
好吧，我刚刚注意到您在使用 for 循环。您可以做的是将数字传递给函数然后运行它，例如：
.... # Same code
tv.bind("<Double-1>",lambda e,num=i: self.calculate_econ_phase(num)
def calculate_econ_phase(self,num):
print(f'Alien{num}')
作为答案发布，因为评论太长了。