在TreeView Tkinter中删除和编辑项目

Question

我想TreeView在Tkinter中删除一行.

我知道这个方法:

def delButton(self):
    x = main.tree.get_children()
    for item in x:
        main.tree.delete(item)

删除整棵树.但我想只删除一行.我怎样才能做到这一点？

此外,我想知道如何编辑TreeView行.

Answer 1

您没有删除整个树,只是从根项中删除所有子项,因为您对迭代中的每个项使用了删除.您可以使用if语句来确定所需的项目,也可以使用selected_item = tree.selection()[0]并删除所选项目.使用该.item()方法,您可以完全访问该项目以进行修改.例:

from Tkinter import Tk, Button
import ttk


root = Tk()

tree = ttk.Treeview(root)

tree["columns"]=("one","two")
tree.column("one", width=100 )
tree.column("two", width=100)
tree.heading("one", text="coulmn A")
tree.heading("two", text="column B")

tree.insert("" , 0,    text="Line 1", values=("1A","1b"))

id2 = tree.insert("", 1, "dir2", text="Dir 2")
tree.insert(id2, "end", "dir 2", text="sub dir 2", values=("2A","2B"))

##alternatively:
tree.insert("", 3, "dir3", text="Dir 3")
tree.insert("dir3", 3, text=" sub dir 3",values=("3A"," 3B"))

def edit():
    x = tree.get_children()
    for item in x: ## Changing all children from root item
        tree.item(item, text="blub", values=("foo", "bar"))

def delete():
    selected_item = tree.selection()[0] ## get selected item
    tree.delete(selected_item)

tree.pack()
button_del = Button(root, text="del", command=delete)
button_del.pack()
button_del = Button(root, text="edit", command=edit)
button_del.pack()

root.mainloop()