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,第 2,4,6 行具有浅蓝灰色背景?
我也想设置
gridlines
。
几个月前我也遇到过同样的问题。
来自 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,将不同的标签应用于每个偶数行,然后配置标签。
当您在树视图中创建项目时,请为其添加标签:
tree.insert('', 'end', text = 'your text', tags = ('oddrow',))
此代码在
tree
中创建一个元素,并且 tags
参数将标签“oddrow”分配给该元素。
使用“奇数行”和“偶数行”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')
我意识到这是一个老问题,但仅用于在创建树后配置标签的记录(即尚未向其中添加任何项目时)也可以。当项目稍后插入时,它们将被赋予适合其“奇数行”或“偶数行”标签的背景颜色。
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()
这是创建一个SQL数据库。然后将数据库中的少数客户加载到列表框中。 然后您可以单击“测试新颜色”按钮以显示奇数行的颜色变化。只要您将 sqlalchemy 作为模块安装,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()
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()
我制作了一个应用交替行颜色的函数。对于那些重新排列行并需要再次正确重新着色的人来说,这是一个更好的方法。
def apply_striped_row_color(tv, oddcolor='lightgray', evencolor='white'):
for index, iid in enumerate(tv.get_children()):
tags = tv.item(iid,'tags') # get current tags
tags.remove('evenrow') if 'evenrow' in tags else None # remove if exist
tags.remove('oddrow') if 'oddrow' in tags else None # remove if exist
tags.append('evenrow' if index%2 else 'oddrow')
self.item(iid, tags=tags)
tv.tag_configure('oddrow', background=oddcolor)
tv.tag_configure('evenrow', background= evencolor)
我对其进行了更好的更新,这适用于更高版本的 python 3.9+,也许更旧。
这将进行排序,您只需在函数中添加对它的调用即可更新您的树视图以及底部的排序函数,并且它将在排序后保留它。
def apply_striped_row_color(tree, oddcolor='lightgray', evencolor='white'):
for index, iid in enumerate(tree.get_children()):
if index % 2 == 0:
tree.item(iid, tags=('evenrow',))
else:
tree.item(iid, tags=('oddrow',))
tree.tag_configure('oddrow', background=oddcolor)
tree.tag_configure('evenrow', background=evencolor)