单击 Tkinter Treeview 小部件的项目的命令? [英] Command for clicking on the items of a Tkinter Treeview widget?
问题描述
我正在用 Tkinter 创建一个 GUI,GUI 的主要部分是两个 Treeview 对象.当一个项目(即目录)被点击两次时,我需要 Treeview
对象的内容来更改.
I'm creating a GUI with Tkinter, and a major part of the GUI is two Treeview objects. I need the contents of the Treeview
objects to change when an item (i.e. a directory) is clicked twice.
如果 Treeview 项目是按钮,我只能将 command
设置为适当的功能.但是我找不到为 Treeview 项目创建 "on_click"
行为的方法.
If Treeview items were buttons, I'd just be able to set command
to the appropriate function. But I'm having trouble finding a way to create "on_click"
behavior for Treeview items.
什么 Treeview 选项、方法等使我能够将命令绑定到特定项目并执行该命令 "on_click"
?
What Treeview option, method, etc, enables me to bind a command to particular items and execute that command "on_click"
?
推荐答案
如果您希望在用户双击时发生某些事情,请为 "
添加绑定.由于单击即可设置选择,因此在您的回调中,您可以查询小部件以找出选择的内容.例如:
If you want something to happen when the user double-clicks, add a binding to "<Double-1>"
. Since a single click sets the selection, in your callback you can query the widget to find out what is selected. For example:
import tkinter as tk
from tkinter import ttk
class App:
def __init__(self):
self.root = tk.Tk()
self.tree = ttk.Treeview()
self.tree.pack()
for i in range(10):
self.tree.insert("", "end", text="Item %s" % i)
self.tree.bind("<Double-1>", self.OnDoubleClick)
self.root.mainloop()
def OnDoubleClick(self, event):
item = self.tree.selection()[0]
print("you clicked on", self.tree.item(item,"text"))
if __name__ == "__main__":
app = App()
这篇关于单击 Tkinter Treeview 小部件的项目的命令?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!