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.
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.
What Treeview option, method, etc, enables me to bind a command to particular items and execute that command "on_click"
?
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()