python - ttk treeview：交替行颜色

Question

如何为treeview小部件设置样式，以便交替行具有不同的背景颜色，例如，第 1、3、5 行具有白色背景，而第 2、4、6 行具有浅蓝灰色背景？

我也想设置gridlines。

Answer 1

几个月前我遇到了同样的问题。

从tk 文档：

You can assign a list of tags to each item using the "tags" 
item configuration option (again, when creating the item or later on).

Tag configuration options can then be specified, which will then 
apply to all items having that tag.

基本上，您将一个标签应用于所有奇数行，将一个不同的标签应用于每个偶数行，然后配置标签。

---

在树视图中创建项目时，为它们添加标签：

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

此代码在 中创建一个元素tree，并且tags参数将标记“oddrow”分配给该元素。

使用“oddrow”和“evenrow”标签创建所有元素后，您可以为标签着色：

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

Answer 2

我意识到这是一个老问题，但只是为了在创建树之后（即尚未向其中添加任何项目）配置标签的记录也有效。随着项目稍后被插入，它们将被赋予适合其“奇数行”或“偶数行”标签的背景颜色。

Answer 3

无需任何额外模块即可运行...可能会弄乱代码以使其与您自己的代码一起使用。

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()

Answer 4

这是为了创建一个 SQL 数据库。然后将少数客户从 db 加载到列表框中。然后您可以单击测试新颜色按钮以显示它为奇数行更改颜色。只要您将 sqlalchemy 作为模块安装，它就可以运行。

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()

Answer 5

工作代码：python3.6

try:
    from Tkinter import *
    from ttk import *
except ImportError:  # Python 3
    from tkinter import *
    from tkinter.ttk import *

class App(Frame):

    def __init__(self, parent):
        Frame.__init__(self, parent)
        self.CreateUI()
        self.LoadTable()
        self.grid(sticky = (N,S,W,E))
        parent.grid_rowconfigure(0, weight = 1)
        parent.grid_columnconfigure(0, weight = 1)

    def CreateUI(self):
        style = Style(self)
        
        style.theme_use("clam")
        style.configure("Treeview.Heading", background="black", foreground="white")        
        
        style.configure("Treeview",
                        background = "silver",
                        foreground = "black",
                        rowheight = 25,
                        fieldbackground = "silver",                
                        )
        style.map('Treeview', background=[('selected', 'green')])

        
        tv = Treeview(self)
        tv['columns'] = ('filename', 'environment', 'status')
        tv.heading("#0", text='Job Id')
        tv.column("#0", anchor="w", width=100)
        tv.heading('filename', text='File Name')
        tv.column('filename', anchor='w')
        tv.heading('environment', text='Environment')
        tv.column('environment', anchor='w', width=100)
        tv.heading('status', text='Status')
        tv.column('status', anchor='w', width=100)        
        tv.grid(sticky = (N,S,W,E))
        self.treeview = tv
        self.grid_rowconfigure(0, weight = 1)
        self.grid_columnconfigure(0, weight = 1)
        
        

    def LoadTable(self):
        self.treeview.tag_configure('oddrow', background = "#D3D3D3")
        self.treeview.tag_configure('evenrow', background = "#000000")
        self.treeview.insert('', 'end', text="First", iid=0,values=('10:00',
                             '10:10', 'Ok'), tags=('oddrow'))
        
        self.treeview.insert('', 'end', text="First", iid=1,values=('10:00',
                             '10:10', 'Ok'), tags=('evenrow'))

def main():
    root = Tk()
    App(root)
    root.mainloop()

if __name__ == '__main__':
    main()