[英]How do I assign a variable to a Tkinter input?
I am using the following code to create a widget with three inputs. 我正在使用以下代码创建具有三个输入的窗口小部件。
I am able to modify this code to format the widget how I want, but I then need to copy files based on the input from the fields in the widget. 我可以修改此代码以按需要设置小部件的格式,但是随后我需要根据小部件中字段的输入来复制文件。 For example, if the user inputs
'A'
, '1'
, and 'X'
then I need to copy file A1X
from a network drive to the local drive. 例如,如果用户输入
'A'
, '1'
和'X'
那么我需要将文件A1X
从网络驱动器复制到本地驱动器。
I think I need to assign each input field to a variable and then I can set up a conditional to get the correct file, but I cannot figure out how to set up these variables. 我想我需要将每个输入字段分配给一个变量,然后可以设置一个条件来获取正确的文件,但是我无法弄清楚如何设置这些变量。
from tkinter import *
fields = 'Project #', 'Reel #', 'Batch #'
def fetch(entries):
for entry in entries:
field = entry[0]
text = entry[1].get()
print('%s: "%s"' % (field, text))
def makeform(root, fields):
entries = []
for field in fields:
row = Frame(root)
lab = Label(row, width=15, text=field, anchor='w')
ent = Entry(row)
row.pack(side=TOP, fill=X, padx=5, pady=5)
lab.pack(side=LEFT)
ent.pack(side=RIGHT, expand=YES, fill=X)
entries.append((field, ent))
return entries
if __name__ == '__main__':
root = Tk()
ents = makeform(root, fields)
root.bind('<Return>', (lambda event, e=ents: fetch(e)))
b1 = Button(root, text='OK',
command=(lambda e=ents: fetch(e)))
b1.pack(side=RIGHT, padx=5, pady=5)
b2 = Button(root, text='Reset', command=root.quit)
b2.pack(side=RIGHT, padx=5, pady=5)
root.mainloop()
Here is a fixed version(assuming entries is a dictionary): 这是固定版本(假设条目是字典):
def fetch(entries):
filename = ''.join(entries[f].get() for f in fields)
print(filename)
#whatever you want to do with the result
You need to use a StringVar()
and provide a textvariable
to Entry()
您需要使用
StringVar()
并为Entry()
提供一个textvariable
for field in fields:
row = Frame(root)
lab = Label(row, width=15, text=field, anchor='w')
entry_variable = StringVar(root)
ent = Entry(row, textvariable=entry_variable)
row.pack(side=TOP, fill=X, padx=5, pady=5)
lab.pack(side=LEFT)
ent.pack(side=RIGHT, expand=YES, fill=X)
entries.append((field, entry_variable))
Get the data (after fixing indentation): 获取数据(修复缩进之后):
def fetch(entries):
for entry in entries:
field = entry[0]
text = entry[1].get()
print('%s: "%s"' % (field, text))
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