如何解决如何在画布中使用Tkinter滚动条
我们正在尝试使用tkinter设计表单。我们停留在无法链接表单滚动条的位置。
def init_Widget(self):
#Second Info Frame
self.CanvasFrame =Canvas(self,height=200,width=550,bg="red")
self.scrollbar=Scrollbar(self.CanvasFrame)[enter image description here][1]
self.scrollbar.pack(side=RIGHT,fill=Y)
self.CanvasFrame.configure(yscrollcommand=self.scrollbar.set)
self.OrderFrame = LabelFrame(self.CanvasFrame,text="Billing Info",padx=5,pady=5,highlightthickness=2 )
self.Header1lbl = Label(self.OrderFrame,text="Item",foreground="white",font=("Courier",10,"bold"),bg="#008080",relief="raised",borderwidth = 2,width=40,padx=1,pady=1)
self.Header1lbl.grid(row=0,column=0)
self.Header2lbl = Label(self.OrderFrame,text="Qty",width= 10,pady=1)
self.Header2lbl.grid(row=0,column=1)
self.Header3lbl = Label(self.OrderFrame,text="Rate",pady=1)
self.Header3lbl.grid(row=0,column=2)
for i in range(1,8):
self.ItemInput1 = Entry(self.OrderFrame,width=54)
self.ItemInput1.grid(row=i,column=0)
self.Qty1 = Entry(self.OrderFrame,width=14)
self.Qty1.grid(row=i,column=1)
self.Rate1 = Entry(self.OrderFrame,width=14)
self.Rate1.grid(row=i,column=2)
self.CanvasFrame.configure(scrollregion=self.CanvasFrame.bbox("all"))
self.OrderFrame.pack(padx=3,pady=3)
self.scrollbar.config(command=self.CanvasFrame.yview)
self.CanvasFrame.pack()
self.CanvasFrame.pack_propagate(False)
预先感谢
解决方法
首先,您不应该将self.scrollbar
放在self.CanvasFrame
内,而应该放在self
中。
self.scrollbar=Scrollbar(self)
第二,您不应使用pack()
将self.OrderFrame
放入self.CanvasFrame
,而应使用self.CanvasFrame.create_window()
。
最后,在将所有小部件插入scrollregion
并将self.OrderFrame
添加到self.OrderFrame
之后,您应该更新self.CanvasFrame
。
#self.OrderFrame.pack(padx=3,pady=3)
self.CanvasFrame.create_window(0,window=self.OrderFrame,anchor='nw')
self.CanvasFrame.update()
self.CanvasFrame.configure(scrollregion=self.CanvasFrame.bbox("all"))
更新:您可以使用框架固定画布和滚动条:
def init_Widget(self):
# frame for the canvas and scrollbar
self.ScrollFrame = Frame(self)
self.ScrollFrame.pack()
self.CanvasFrame = Canvas(self.ScrollFrame,height=200,width=550,bg="red")
self.CanvasFrame.pack(side=LEFT,fill=BOTH)
self.scrollbar = Scrollbar(self.ScrollFrame,command=self.CanvasFrame.yview)
self.scrollbar.pack(side=RIGHT,fill=Y)
self.CanvasFrame.configure(yscrollcommand=self.scrollbar.set)
self.OrderFrame=LabelFrame(self.CanvasFrame,text="Billing Info",padx=5,pady=5,highlightthickness=2 )
self.CanvasFrame.create_window(0,anchor='nw')
self.Header1lbl = Label(self.OrderFrame,text="Item",foreground="white",font=("Courier",10,"bold"),bg="#008080",relief="raised",borderwidth = 2,width=40,padx=1,pady=1)
self.Header1lbl.grid(row=0,column=0)
self.Header2lbl = Label(self.OrderFrame,text="Qty",width= 10,pady=1)
self.Header2lbl.grid(row=0,column=1)
self.Header3lbl = Label(self.OrderFrame,text="Rate",pady=1)
self.Header3lbl.grid(row=0,column=2)
for i in range(1,18):
self.ItemInput1 = Entry(self.OrderFrame,width=54)
self.ItemInput1.grid(row=i,column=0)
self.Qty1 = Entry(self.OrderFrame,width=14)
self.Qty1.grid(row=i,column=1)
self.Rate1 = Entry(self.OrderFrame,width=14)
self.Rate1.grid(row=i,column=2)
self.CanvasFrame.update()
self.CanvasFrame.configure(scrollregion=self.CanvasFrame.bbox("all"))
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