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from tkinter import *
from tkinter import messagebox
from tkinter.ttk import *
def doubleClick(event):
e = event.widget # Get event controls
iid = e.identify("item",event.x,event.y) # Get the double-click item id
state = e.item(iid,"text") # Get state
city = e.item(iid,"values")[0] # Get city
outputStr = "{0} : {1}".format(state,city) # Formatting
messagebox.showinfo("Double Clicked",outputStr) # Output
root = Tk()
root.title("ch18_12")
stateCity = {"Illinois": "Chicago", "California": "Los Angeles",
"Texas": "Houston", "Washington": "Seattle",
"Jiangsu": "Nanjing", "Shandong": "Qingdao",
"Guangdong": "Guangzhou", "Fujian": "Xiamen"}
# Create Treeview
tree = Treeview(root,columns=("cities"))
# Create column headings
tree.heading("#0",text="State") # Icon bar
tree.heading("cities",text="City")
# Format field
tree.column("cities",anchor=CENTER)
# Create Content
for state in stateCity.keys():
tree.insert("",index=END,text=state,values=stateCity[state])
tree.bind("<Double-1>",doubleClick) # Double-click binding doubleClick method
tree.pack()
root.mainloop()
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