Python ttk treeview：交替行颜色

我如何设置

treeview

小部件的样式，以便备用行具有不同的背景颜色，例如，行1、3、5具有白色背景，行2、4、6具有浅蓝灰色背景

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我还想设置

网格线

几个月前我也遇到过同样的问题

从：

基本上，将一个标记应用于所有奇数行，将不同的标记应用于每个偶数行，然后配置标记

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在树状视图中创建项目时，向其添加标记：

tree.insert('', 'end', text = 'your text', tags = ('oddrow',))

此代码在

树

中创建一个元素，

标记

参数将标记“oddrow”分配给元素

使用“oddrow”和“evenrow”标记创建所有元素后，可以为标记着色：

tree.tag_configure('oddrow', background='orange')
tree.tag_configure('evenrow', background='purple')

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我意识到这是一个老问题，但对于记录来说，在创建树之后配置标记（即，当没有项目添加到树中时）也可以。当项目稍后被插入时，它们将被赋予与其“oddrow”或“evenrow”标记相应的背景颜色。

这是为了创建SQL数据库。然后将db中的少数客户加载到listbox中。 然后，您可以单击“测试新颜色”按钮以显示它正在更改奇数行的颜色。只要您将sqlalchemy安装为模块，这是可以运行的

from Tkinter import *
import ttk
from sqlalchemy import Column, ForeignKey, Integer, String, Text
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker

base = declarative_base()


class Customer(base):
    __tablename__='Customer_Details'
    Id = Column(Integer, primary_key=True)
    first_name = Column(String(64))
    last_name = Column(String(64))


class DB_connection(object):
    def __enter__(variable):
        variable.engine = create_engine("sqlite:///example.db")
        base.metadata.bind = variable.engine
        variable.DBSession = sessionmaker(bind=variable.engine)
        variable.Session = variable.DBSession
        variable.session = variable.Session()
        return variable
    def __exit__(variable, exc_type, exc_val, exc_tb):
        variable.session.commit()
        variable.session.close()

class Test(Frame):

    def __init__(self):
        Frame.__init__(self)
        self.pack()
        self.listbox()
        self.buttons()

    def listbox(self):
        global new_customer_lb

        scrollbar = Scrollbar(self, orient="vertical")
        new_customer_lb = ttk.Treeview(self, columns=('ID','First Name','Last Name'))
        new_customer_lb['show']='headings'
        new_customer_lb.heading('#1', text= 'ID')
        new_customer_lb.column('#1', width=50, stretch=NO)
        new_customer_lb.heading('#2', text= 'First Name')
        new_customer_lb.column('#2', width=100, stretch=NO)
        new_customer_lb.heading('#3', text= 'Last Name')
        new_customer_lb.column('#3', width=100, stretch=NO)
        new_customer_lb.configure(yscroll = scrollbar.set, selectmode="browse")
        scrollbar.config(command=new_customer_lb.yview)
        new_customer_lb.pack()


    def buttons(self):
        db = Button(self, text='make DB', command=lambda:self.create_db())
        customer = Button(self, text='create customers', command=lambda:self.create_customers())
        load = Button(self, text='show customers', command=lambda:self.load_working_customers())
        test = Button(self, text='test new colors', command=lambda:self.test_colors())
        db.pack()
        customer.pack()
        load.pack()
        test.pack()

    def create_db(self):
        print("start create db function")
        engine = create_engine('sqlite:///example.db')
        base.metadata.create_all(engine)
        print("Success create db function")

    def create_customers(self):
        print ('Start add customer sql')
        customer1 = Customer(first_name='first1',last_name='last1')
        customer2 = Customer(first_name='first2',last_name='last2')
        customer3 = Customer(first_name='first3',last_name='last3')
        customer4 = Customer(first_name='first4',last_name='last4')
        with DB_connection() as DB:
            DB.session.add_all([customer1,customer2,customer3,customer4])
        print ('sucess add customer sql')

    def load_working_customers(self):
        new_customer_lb.delete(*new_customer_lb.get_children())    
        with DB_connection() as DB:
            for a,b,c in DB.session.query(Customer.Id,Customer.first_name,Customer.last_name).order_by(Customer.Id):
                new_customer_lb.insert('','end', values=(a,b,c))

    def test_colors(self):
        new_customer_lb.delete(*new_customer_lb.get_children())                 

### configure even and odd here
        new_customer_lb.tag_configure("evenrow",background='white',foreground='black')
        new_customer_lb.tag_configure("oddrow",background='black',foreground='white')

        with DB_connection() as DB:
## this loop will take 'a' (Customer.Id) and test if even or odd
            for a,b,c in DB.session.query(Customer.Id,Customer.first_name,Customer.last_name).order_by(Customer.Id):                
                if a % 2 == 0:
                    new_customer_lb.insert('','end', values=(a,b,c), tags=('evenrow',))
                else:
                    new_customer_lb.insert('','end', values=(a,b,c), tags=('oddrow',))

root = Tk()
app = Test()
app.mainloop()

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这在没有任何额外模块的情况下是可运行的。。。可能会弄乱代码，使其与您自己的代码一起工作

from Tkinter import *
import ttk

class Test(Frame):

    def __init__(self):
        Frame.__init__(self)
        self.pack()
        self.listbox()
        self.buttons()

    def listbox(self):
        global new_customer_lb

        scrollbar = Scrollbar(self, orient="vertical")
        new_customer_lb = ttk.Treeview(self, columns=('ID','First Name','Last Name'))
        new_customer_lb['show']='headings'
        new_customer_lb.heading('#1', text= 'ID')
        new_customer_lb.column('#1', width=50, stretch=NO)
        new_customer_lb.heading('#2', text= 'First Name')
        new_customer_lb.column('#2', width=100, stretch=NO)
        new_customer_lb.heading('#3', text= 'Last Name')
        new_customer_lb.column('#3', width=100, stretch=NO)
        new_customer_lb.configure(yscroll = scrollbar.set, selectmode="browse")
        scrollbar.config(command=new_customer_lb.yview)
        new_customer_lb.pack()


    def buttons(self):
        load = Button(self, text='show customers', command=lambda:self.load_working_customers())
        test = Button(self, text='test new colors', command=lambda:self.test_colors())
        load.pack()
        test.pack()

    def load_working_customers(self):
        new_customer_lb.delete(*new_customer_lb.get_children())
        for a in range(0,10):            
            new_customer_lb.insert('','end', values=(a,'first','last'))

    def test_colors(self):
        new_customer_lb.delete(*new_customer_lb.get_children())                 

        new_customer_lb.tag_configure("evenrow",background='white',foreground='black')
        new_customer_lb.tag_configure("oddrow",background='black',foreground='white')
        for a in range(0,10):            
            if a % 2 == 0:
                new_customer_lb.insert('','end', values=(a,'first','last'), tags=('evenrow',))
            if a % 2 != 0:
                new_customer_lb.insert('','end', values=(a,'first','last'), tags=('oddrow',))

root = Tk()
app = Test()
app.mainloop()

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您是否有任何示例代码或其他信息？从文档中的描述我不知道如何实现。谢谢。现在，如果我们能想出如何添加网格线…：）我可能会有相关的问题。如果是这样，我将开始一个新主题。我认为Colin的意思是，您可以首先配置标记，然后添加行，行将被着色。正如Matt的回答所暗示的那样，添加所有行后无需配置标记。如果“a”已经是一个数字，那么使用%就更容易了。如果没有带数字的列，可以使用数字填充列并将其隐藏，然后使用隐藏的列数字附加标记。还有一个iid自动放置在每一行中，但我个人还没有想到将iid转换成int（）形式来使用%with.not run:./demo3.py:line 1:from:command not found./demo3.py:line 2:import:command not found./demo3.py:line 4:unexpected token

（'./demo3.py:line 4:

类测试附近的语法错误（框架）：'

from Tkinter import *
import ttk

class Test(Frame):

    def __init__(self):
        Frame.__init__(self)
        self.pack()
        self.listbox()
        self.buttons()

    def listbox(self):
        global new_customer_lb

        scrollbar = Scrollbar(self, orient="vertical")
        new_customer_lb = ttk.Treeview(self, columns=('ID','First Name','Last Name'))
        new_customer_lb['show']='headings'
        new_customer_lb.heading('#1', text= 'ID')
        new_customer_lb.column('#1', width=50, stretch=NO)
        new_customer_lb.heading('#2', text= 'First Name')
        new_customer_lb.column('#2', width=100, stretch=NO)
        new_customer_lb.heading('#3', text= 'Last Name')
        new_customer_lb.column('#3', width=100, stretch=NO)
        new_customer_lb.configure(yscroll = scrollbar.set, selectmode="browse")
        scrollbar.config(command=new_customer_lb.yview)
        new_customer_lb.pack()


    def buttons(self):
        load = Button(self, text='show customers', command=lambda:self.load_working_customers())
        test = Button(self, text='test new colors', command=lambda:self.test_colors())
        load.pack()
        test.pack()

    def load_working_customers(self):
        new_customer_lb.delete(*new_customer_lb.get_children())
        for a in range(0,10):            
            new_customer_lb.insert('','end', values=(a,'first','last'))

    def test_colors(self):
        new_customer_lb.delete(*new_customer_lb.get_children())                 

        new_customer_lb.tag_configure("evenrow",background='white',foreground='black')
        new_customer_lb.tag_configure("oddrow",background='black',foreground='white')
        for a in range(0,10):            
            if a % 2 == 0:
                new_customer_lb.insert('','end', values=(a,'first','last'), tags=('evenrow',))
            if a % 2 != 0:
                new_customer_lb.insert('','end', values=(a,'first','last'), tags=('oddrow',))

root = Tk()
app = Test()
app.mainloop()