我试图使用从sql表中提取的数据在类中的输入框中填充默认值,但遇到了麻烦。我将SQL查询拉到类外部,然后尝试使用全局变量访问类中的变量。然后使用set()在输入框中设置全局变量。对我所缺少的任何见解都非常感激。编辑:我将其更新为反映建议的代码更改的更正代码。这个代码现在起作用了。你知道吗
# Data Audit GUI
import pandas as pd
import numpy as np
import pandas.io.sql as psql
import pyodbc
from tkinter import *
from tkinter.ttk import *
root = Tk()
cnxn = pyodbc.connect("DRIVER={SQL Server};""SERVER=xxxx;DATABASE=xxxx;""trusted_connection=yes;")
sql = """
SELECT title
FROM dbo.jobtable
WHERE jobid=4001
"""
Job = psql.read_sql(sql, cnxn)
Pyjobtitle = StringVar()
Pyjobtitle = Job['title'].values[0]
class Application(Frame):
def __init__(self, master):
Frame.__init__(self,master)
self.grid()
self.create_widgets()
def create_widgets(self):
global Pyjobtitle
self.ClassJobTitle = StringVar()
self.JobTitle = Entry(root, width = 45, text = self.ClassJobTitle) # Job Title
self.JobTitle.grid(row = 2, column = 0, columnspan = 1, rowspan = 1, sticky = W)
self.ClassJobTitle.set(Pyjobtitle)
app = Application(root)
root.mainloop()
嗯,
psql.read_sql
返回一个DataFrame
,所以您需要在以下领域做一些事情:相关问题 更多 >
编程相关推荐