无法增加 tkinter 框架 canvas.create_window 的大小，隐藏 CSV 列

Posted 2023-05-08

【中文标题】无法增加 tkinter 框架 canvas.create_window 的大小，隐藏 CSV 列

【英文标题】：Unable to increase size of tkinter frame canvas.create_window, Hides CSV columns

【发布时间】：2020-12-04 14:08:41

【问题描述】：

我的员工 CSV 文件包含以下列 姓名,年龄,学历,mailid,手机号码,地址1,地址2,地址3,地址4 使用 Canvas Frame，create_window(4,4) 这是我下面的代码 我尝试增加宽度和高度

但直到 address2 列仅可见，最后两列 Address3,Address4 在屏幕中不可见 有人知道吗？请推荐

员工.csv

name,age,education,mailid,mobilenumber,Address1,Address2,Address3,Address4
abc,23,bsc,[e-mail],9999999999,addr1,addr2,addr3,addr4
abcdf,26,bsc,[e-mail],88888888888,addr1,addr2,addr3,addr4
abc,23,bsc,[e-mail],9999999999,addr1,addr2,addr3,addr4
abcdf,26,bsc,[e-mail],88888888888,addr1,addr2,addr3,addr4
abc,23,bsc,[e-mail],9999999999,addr1,addr2,addr3,addr4
abcdf,26,bsc,[e-mail],88888888888,addr1,addr2,addr3,addr4
abc,23,bsc,[e-mail],9999999999,addr1,addr2,addr3,addr4
abcdf,26,bsc,[e-mail],88888888888,addr1,addr2,addr3,addr4
abc,23,bsc,[e-mail],9999999999,addr1,addr2,addr3,addr4
abcdf,26,bsc,[e-mail],88888888888,addr1,addr2,addr3,addr4




import csv
import os
import codecs
from tkinter import *
from tkinter import Tk
from tkinter import ttk
import tkinter as tk
import tkinter.ttk
from tkinter import filedialog
class MyApp():
    def __init__(self):
        UI_Widgets(self)
def myfunction(event):
    canvas.configure(scrollregion=canvas.bbox("all"),width=450,height=300)   
root=Tk()
SIZEX = 800
SIZEY = 600
POSX  = 100
POSY  = 100
root.title("MY APPLICATION")
root.configure(background="#e7e6e6")
root.wm_geometry("%dx%d+%d+%d" % (SIZEX, SIZEY, POSX, POSY))
myframe=Frame(root,relief=GROOVE,width=450,height=400,bd=2,background="white",bg="black")
myframe.place(x=50,y=100)
canvas=Canvas(myframe)
scrollable_frame=Frame(canvas,bg ="#f4f6f9")
myscrollbar=Scrollbar(myframe,orient="vertical",command=canvas.yview)
canvas.configure(yscrollcommand=myscrollbar.set,bg='#f4f6f9')
myscrollbar.pack(side="right",fill="y")
canvas.pack(side="left")
canvas.create_window((4,4),window=scrollable_frame,anchor='nw' )
scrollable_frame.bind("<Configure>",myfunction)
sep = ttk.Separator(scrollable_frame,orient=VERTICAL)
def UI_Widgets(self):
    self.Button_readcsv= Button(root,text ="Browse CSV FILE", command = readcsv)
    self.Button_readcsv.place(x=40, y=40)
            
def readcsv():
    filepath=filedialog.askopenfilename(initialdir="/", title="Open file",filetypes=(("CSV Files","*.csv"),))   
    try:
            with codecs .open(filepath, encoding="utf8") as my_file:
                reader = csv.DictReader(my_file, delimiter=',')
                headers = reader.fieldnames              
                i=0
                horline=0
                tk.Label(scrollable_frame, text=headers[0] ,bg ="#f4f6f9" ).grid(row=0,column=1,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=2, row=0, rowspan=3, sticky='ns')
                tk.Label(scrollable_frame, text=headers[1],bg ="#f4f6f9").grid(row=0,column=3,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=4, row=0, rowspan=3, sticky='ns')
                tk.Label(scrollable_frame, text=headers[2],bg ="#f4f6f9").grid(row=0,column=5,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=6, row=0, rowspan=3, sticky='ns')
                tk.Label(scrollable_frame, text=headers[3],bg ="#f4f6f9").grid(row=0,column=7,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=8, row=0, rowspan=3, sticky='ns')    
                tk.Label(scrollable_frame, text=headers[4],bg ="#f4f6f9").grid(row=0,column=9,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=10, row=0, rowspan=3, sticky='ns')   
                tk.Label(scrollable_frame, text=headers[5],bg ="#f4f6f9").grid(row=0,column=11,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=12, row=0, rowspan=3, sticky='ns')    
                tk.Label(scrollable_frame, text=headers[6],bg ="#f4f6f9").grid(row=0,column=13,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=14, row=0, rowspan=3, sticky='ns')    
                tk.Label(scrollable_frame, text=headers[7],bg ="#f4f6f9").grid(row=0,column=15,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=16, row=0, rowspan=3, sticky='ns')  
                tk.Label(scrollable_frame, text=headers[8],bg ="#f4f6f9").grid(row=0,column=17,sticky='n')
                tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=18, row=0, rowspan=3, sticky='ns') 
                for row in reader:        
                    if(i==0):
                        i=3
                    else:
                        i=i+2                           
                    if(horline==0):
                        horline=2
                    else:
                        horline=horline+2  
                        name = row[headers[0]]
                        age = row[headers[1]]
                        education = row[headers[2]]
                        mailid = row[headers[3]]   
                        mobilenumber = row[headers[4]]
                        Address1 = row[headers[5]]
                        Address2 = row[headers[6]]
                        Address3 = row[headers[7]]   
                        Address4 = row[headers[8]]   
                        tk.Label(scrollable_frame,text=name,bg ="#f4f6f9").grid(row=i,column=1,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=2, row=0, rowspan=i+1, sticky='ns')                                         
                        tk.Label(scrollable_frame, text=age,bg ="#f4f6f9").grid(row=i,column=3,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=4, row=0, rowspan=i+1, sticky='ns')                                    
                        tk.Label(scrollable_frame, text=education,bg ="#f4f6f9").grid(row=i,column=5,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=6, row=0, rowspan=i+1, sticky='ns')                                  
                        tk.Label(scrollable_frame, text=mailid,bg ="#f4f6f9").grid(row=i,column=7,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=8, row=0, rowspan=i+1, sticky='ns')      
                        tk.Label(scrollable_frame, text=mobilenumber,bg ="#f4f6f9").grid(row=i,column=9,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=10, row=0, rowspan=i+1, sticky='ns')  
                        tk.Label(scrollable_frame, text=Address1,bg ="#f4f6f9").grid(row=i,column=11,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=12, row=0, rowspan=i+1, sticky='ns')   
                        tk.Label(scrollable_frame, text=Address2,bg ="#f4f6f9").grid(row=i,column=13,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=14, row=0, rowspan=i+1, sticky='ns')                           
                        tk.Label(scrollable_frame, text=Address3,bg ="#f4f6f9").grid(row=i,column=15,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=16, row=0, rowspan=i+1, sticky='ns')   
                        tk.Label(scrollable_frame, text=Address4,bg ="#f4f6f9").grid(row=i,column=17,sticky='n')
                        tkinter.ttk.Separator(scrollable_frame, orient=VERTICAL).grid(column=18, row=0, rowspan=i+1, sticky='ns')  
    except(IOError):
           print("Error Reading in CSV File ")          
if __name__ == '__main__':
    myapp = MyApp()
    root.mainloop()
        

【参考方案1】：

可能随着宽度和高度的改变不起作用，因为您正在更改框架大小，并且框架将根据其中的画布大小进行调整，除非您使用 pack_propagate(False) 阻止它。但这对您没有帮助，因为您必须在 my_function() 方法中编辑画布宽度：

def myfunction(event):
    canvas.configure(scrollregion=canvas.bbox("all"),width=450,height=300) 

但要确保它始终适合您的画布，最好添加一个水平滚动条：

myscrollbarx=Scrollbar(myframe,orient="horizontal",command=canvas.xview)
canvas.configure(xscrollcommand=myscrollbarx.set,bg='#f4f6f9')
myscrollbarx.pack(side="bottom",fill="x")

【讨论】：

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