如何在 Tkinter 中将 Treeview 数据保存为 excel 文件？

Question

我的Treeview 表单中有一些数据绑定到我的SQLite 数据库，我想知道是否有办法将我的Treeview 的数据作为excel 文件保存在我的计算机中。

mytree = ttk.Treeview(frame_busqueda, height=19, column=('column1', 'column2', 'column3', 'column4', 'column5', 'column6'), show='headings', style="Custom.Treeview")
            mytree.pack()
style = ttk.Style()

style.configure("Custom.Treeview.Heading",
                             foreground="green", relief="flat", font='arial 10 bold')
style.map("Custom.Treeview.Heading", relief=[('active', 'groove'), ('pressed', 'sunken')])


mytree.heading("#1", text="ID CARD")
mytree.column("#1", minwidth=0, width=103, stretch=NO)
mytree.heading("#2", text="NAME")
mytree.column("#2", minwidth=0, width=200, stretch=NO)
mytree.heading("#3", text="SURNAME") 

def savetreeview():
     with open("new.csv", "w", newline='') as myfile:
          csvwriter = csv.writer(myfile, delimiter=',')

          for row_id in mytree.get_children():
              row = mytree.item(row_id)['values']
              csvwriter.writerow(row)
              print(row)

我试图使用 csv 来尝试获取行，它显示了我所有的 Treeview 数据作为输出，但实际上我想要将我的 Treeview 的数据保存为我的电脑。谢谢

Answer 1

pandas 非常简单，你所要做的就是创建一个 writer 并用它来将 csv 写入 excel，例如：

import pandas as pd

writer = pd.ExcelWriter('nameofexcelfiletocreate.xlsx') # Creates this excel file
df = pd.read_csv('new.csv') # Reads the csv and makes a dataframe

df.to_excel(writer,'sheet1') # Writes the dataframe to excel file
writer.save() # Saves the file

这将创建一个新的 excel 文件，并将您的 csv 转换为 excel。记下您必须安装 openpyxl 才能运行此功能：

pip install openpyxl

所以你的函数应该是这样的：

def call():
    cols = ['ID CARD','NAME','SURNAME'] # Your column headings here
    path = 'read.csv'
    excel_name = 'newfile.xlsx'
    lst = []
    with open(path, "w", newline='') as myfile:
        csvwriter = csv.writer(myfile, delimiter=',')
        for row_id in mytree.get_children():
            row = mytree.item(row_id,'values')
            lst.append(row)
        lst = list(map(list,lst))
        lst.insert(0,cols)
        for row in lst:
            csvwriter.writerow(row)

    writer = pd.ExcelWriter(excel_name)
    df = pd.read_csv(path)
    df.to_excel(writer,'sheetname')
    writer.save()

Answer 2

def saveExcel():
    workbook = load_workbook(filename='problem record.xlsx')
    sheet=workbook['Sheet1']
    sheet.delete_rows(idx=2, amount=15)
    for row_id in treeview.get_children():
        row = treeview.item(row_id)['values']
        sheet.append(row)
    workbook.save(filename='problem record.xlsx')