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我试图在我的程序的一部分中创建滚动条。父框架有三个标签框架小部件,其中一个需要显示多达50个选项菜单,因此需要使用滚动条。Tkinter;在画布中使用滚动条
我知道你不能使用滚动条来滚动标签框架,所以在这个标签框架中,我创建了一个可以滚动的画布。然后我在画布中插入了一个框架,我将使用它来显示选项菜单。然后,我将一个滚动条连接到画布上,并将滚动条放置在标签框内。问题是滚动条看起来很实用,但只有前10个选项菜单是可见的,无论它滚动多少。以下是一个示例:
from Tkinter import *
app = Tk()
app.title("Example App")
app.geometry("550x400+300+300")
# Creating the first label frame
entryframe = LabelFrame(app,text="Entry",width=250,height=250)
entryframe.pack(side="top",fill=BOTH)
# Creating a frame to contain the options selected by the user; also using a canvas &
# label frame to enable the use of a scrollbar
outcomesframe = LabelFrame(app,text="User Input",width=250,height=650)
outcomesframe.pack(side="left",fill=BOTH)
outcomescanvas = Canvas(outcomesframe,relief=SUNKEN)
outcomescanvas.config(width=230,height=650)
outcomescanvas.config(scrollregion=(0,0,300,1000))
outcomescanvas.config(highlightthickness=0)
# Creating scrollbar
scrollbar = Scrollbar(outcomesframe)
scrollbar.config(command=outcomescanvas.yview)
outcomescanvas.config(yscrollcommand=scrollbar.set)
scrollbar.pack(side="right",fill=Y)
outcomescanvas.pack(side="left",expand=YES,fill=BOTH)
# Creating the frame in which the option menus will be inserted
outcomesframe2 = Frame(outcomescanvas,width=230,height=1000)
outcomesframe2.pack(side="top",fill=BOTH)
# Creating the third label frame
statsframe = LabelFrame(app,text="Third Label Frame",width=250,height=250)
statsframe.pack(side="right",fill=BOTH)
# Creating the option menus
for i in range(50):
vars()["labeltext"+str(i)] = StringVar()
vars()["labeltext"+str(i)].set("Menu"+str(i+1)+":")
vars()["label"+str(i)] = Label(outcomesframe2,textvariable=vars()["labeltext"+str(i)])
vars()["label"+str(i)].grid(row=i,column=0)
vars()["variable"+str(i)] = StringVar()
vars()["variable"+str(i)].set("Select...")
vars()["menu"+str(i)] = OptionMenu(outcomesframe2,vars()["variable"+str(i)],"Option1","Option2")
vars()["menu"+str(i)].pack()
app.mainloop()
您的代码中存在一个错误。您在同一个容器小部件中使用了网格和包('resultsframe2') –
谢谢。现在修复了。 –