Tkinter label of TreeView

A, TreeView presentation

TreeView component table is a tree structure and combination. The first column is a tree structure, columns after a list. Each row represents one item, the item may be hierarchical tree, each item has a child item, the name of the corresponding text label. Value for each row of values ​​represented by the tuple values.

There are five item labels are: text, image, values, open, tags.

Second, Parameter Description

1, TreeView parameters:

parameter	effect
columns	Value is a list. List each element represents a name identifier column. Length of the list is the length of the column.
displaycolumns	List is a list of elements where the character, which represents the column and the order may be displayed, or use '#all' represents All
height	Indicates the data lines (note: this width part is based on how many columns are automatically defined)
padding	Filling, is a list of a maximum of four elements
selectmode	Define how to select a row. "Extended" is an optional multi-line (with Ctrl + mouse), "browse" option is only one line, "none" can not be changed, the default setting is "extended"
show	Which indicates the function of this display member, "tree" represents only the first column of the display (single-tree pattern), "headings" denotes a display, among other columns (single-mode list) a default is "tree headings", all the columns. Note that "# 0" (first column) always there is

2, item parameters:

Options	description
text	The name of the tree here.
image	Tree on the left side of the map to add a name.
values	List structure here values ​​for each row, column values ​​unassigned null value exceeds the column length will be truncated.
open	Boolean value that represents the sub-item display open or closed
tags	Tag associated with the item

 3, tag parameters

Options	description
foreground	Foreground
background	Background color
font	Fonts
image	Map

Three, TreeView optional events, and methods

<< TreeviewSelect >>, representing the selected change occurred;
<< >> TreeviewOpen, Item's open = True occur when
<< TreeviewClose >>, item of open = False occurs when

TIP: Treeview.focus () and Treeview.selection () available item or items.

List of methods:

bbox (item, column = None)
Returns a range of item (x, y, width, height ), a column if the column is specified, a range of elements is returned, if the item is not visible, null is returned.

get_children (item = None)
returns a sub-item of item all, this is a list of sub-item form, if the item is not specified, the root of the returned item

set_children (item, * newchildren)
set up a new sub-item of the item. After you set up is actually replace all here

column(column, option=None, **kw)
给各列设置属性，或返回属性。
第一个column是列标识符
第二个option，如果不设置则返回所有属性的字典，如果设置则返回那个属性的值。
kw里的option有5个
id：只读属性，返回列名。
anchor：文字在cell里的对齐方式，标准的tk的anchor属性
minwidth: 值，单位是像素，列的最小宽度
stretch: 布尔值，表示列的宽度是否随整个部件的改动而变化。
width：列宽，单位是像素。
提示：如果要设置树状结构那列，用column=“#0”

delete(*items)
删除item及其子item

detach(*items)
断开item及其子item，这里的断开只是不显示，以后还可以链接起来。

exists(item)
返回True，如果item在树里。

focus(item=None)
如果不指定item，则返回当前获得焦点的item，如果指定item，则让该item获得焦点。若无则返回空值。

heading(column, option=None, **kw)
查询或修改指定列的标题选项
第一个column是列标识符
第二个option，如果不设置则返回所有属性的字典，如果设置则返回那个属性的值。
kw里的option有4个
text：列头名
image: 列头名右的图像
anchor：文字在heading里的对齐方式，标准的tk的anchor属性
command:点击列头的回调函数

insert(parent, index, iid=None, **kw)
创建新item并返回新创建item的项标识符。
parent：用item ID表示父item，或者‘’表示根item
index：数值int，或‘end’，表示item插入的位置
iid：item标识符，可自动生成
kw：看上面的Item Options介绍。

item(item, option=None, **kw)
查询或修改指定item的选项

selection(selop=None, items=None)
如果没指定selop则返回所有选中的items，列表形式，若selop指定了selection methods，则相应act。

set(item, column=None, value=None)
指定item，如果不设定column和value，则返回他们的字典，如果设定了column，则返回该column的value，如果value也设定了，则作相应更改。

四、代码示例

1、表格代码：

import tkinter as tk
from tkinter import ttk

window = tk.Tk()
# 设置窗口大小
winWidth = 600
winHeight = 400
# 获取屏幕分辨率
screenWidth = window.winfo_screenwidth()
screenHeight = window.winfo_screenheight()

x = int((screenWidth - winWidth) / 2)
y = int((screenHeight - winHeight) / 2)

# 设置主窗口标题
window.title("TreeView参数说明")
# 设置窗口初始位置在屏幕居中
window.geometry("%sx%s+%s+%s" % (winWidth, winHeight, x, y))
# 设置窗口图标
window.iconbitmap("./image/icon.ico")
# 设置窗口宽高固定
window.resizable(0, 0)

# 定义列的名称
columns = ("name", "gender", "age")
tree = ttk.Treeview(window, show = "headings", columns = columns, selectmode = tk.BROWSE)

# 设置表格文字居中
tree.column("name", anchor = "center")
tree.column("gender", anchor = "center")
tree.column("age", anchor = "center")

# 设置表格头部标题
tree.heading("name", text = "姓名")
tree.heading("gender", text = "性别")
tree.heading("age", text = "年龄")

# 设置表格内容
lists = [{"name": "yang", "gender": "男", "age": "18"}, {"name": "郑", "gender": "女", "age": "25"}]
i = 0
for v in lists:
    tree.insert('', i, values = (v.get("name"), v.get("gender"), v.get("age")))
    i += 1

tree.pack(expand = True, fill = tk.BOTH)


# 获取当前点击行的值
def treeviewClick(event):  # 单击
    for item in tree.selection():
        item_text = tree.item(item, "values")
        print(item_text)

# 鼠标左键抬起
tree.bind('<ButtonRelease-1>', treeviewClick)

# 鼠标选中一行回调
def selectTree(event):
    for item in tree.selection():
        item_text = tree.item(item, "values")
        print(item_text)
    
# 选中行
#tree.bind('<<TreeviewSelect>>', selectTree)

window.mainloop()

2、树状代码：

import tkinter as tk
from tkinter import ttk

window = tk.Tk()
# 设置窗口大小
winWidth = 600
winHeight = 400
# 获取屏幕分辨率
screenWidth = window.winfo_screenwidth()
screenHeight = window.winfo_screenheight()

x = int((screenWidth - winWidth) / 2)
y = int((screenHeight - winHeight) / 2)

# 设置主窗口标题
window.title("TreeView参数说明")
# 设置窗口初始位置在屏幕居中
window.geometry("%sx%s+%s+%s" % (winWidth, winHeight, x, y))
# 设置窗口图标
window.iconbitmap("./image/icon.ico")
# 设置窗口宽高固定
window.resizable(0, 0)

# 定义列的名称
tree = ttk.Treeview(window, show = "tree")

myid=tree.insert("",0,"中国",text="中国China",values=("1"))  # ""表示父节点是根
myidx1=tree.insert(myid,0,"广东",text="中国广东",values=("2"))  # text表示显示出的文本，values是隐藏的值
myidx2=tree.insert(myid,1,"江苏",text="中国江苏",values=("3"))
myidy=tree.insert("",1,"美国",text="美国USA",values=("4"))    
myidy1=tree.insert(myidy,0,"加州",text="美国加州",values=("5"))

# 鼠标选中一行回调
def selectTree(event):
    for item in tree.selection():
        item_text = tree.item(item, "values")
        print(item_text)
    
# 选中行
tree.bind('<<TreeviewSelect>>', selectTree)

tree.pack(expand = True, fill = tk.BOTH)

window.mainloop()

　　

五、效果图