4/15/2024 0 Comments Treeview wordwrap python tkinter![]() ![]() We kept one button to show the selected node value and another button to Update the name of the selected node. Here only the Name column data we will select and update. Treeview Parent-child nodes Getting list of data from Treeview □ my_list= for child in trv.get_children(): my_list.append(trv.item(child)) #print(trv.item(child)) #print(trv.item(child)) # for Nameprint(my_list) On select event of treeview □ def data_collect(): print("hi") p_id = trv.selection() # collect selected row idtrv.bind(">", data_collect()) Displaying selected item value □ def show(): p_id = trv.selection() # collect selected row id print(trv.item(p_id)) # Dictionary of all options print(trv.item(p_id)) # List of valuesb1=tk.Button(my_w,text='Show',command=show)b1.grid(row=2,column=1) Adding Buttons to move UP or DOWN the row selection □īuttons to move UP or DOWN row selection in Tkinter Treeviewįrom tkinter import ttkimport tkinter as tkmy_w = tk.Tk()my_w.geometry("450x380") # width and height of windowmy_w.title("# title of the windowi=0def my_move(direction): global i if(direction='Up'): # Up button is clicked i=int(i)-1 else: i=int(i)+1 trv.selection_set(i)bt1=tk.Button(my_w,text='Up',command=lambda:my_move('Up'))bt1.grid(row=1,column=0,padx=5,pady=10)bt2=tk.Button(my_w,text='Down',command=lambda:my_move('Down'))bt2.grid(row=1,column=1,padx=5,pady=10)trv=ttk.Treeview(my_w,selectmode='browse',show='headings')trv.grid(row=2,column=0,columnspan=3,padx=30,pady=10)# column identifierstrv = ("1", "2","3","4")trv.column("1", width = 50, anchor ='w')trv.column("2", width = 150, anchor ='c')trv.column("3", width = 100, anchor ='c')trv.column("4", width = 70, anchor ='c')trv.heading(1, text ="id",anchor='w')trv.heading(2, text ="Name",anchor='c')trv.heading(3, text ="Class",anchor='c')trv.heading(4, text ="Mark",anchor='c')trv.insert("",'end',iid=1,values=(1,'Alex1','Four',78))trv.insert("",'end',iid=2,values=(2,'Alex2','Four',80))trv.insert("",'end',iid=3,values=(4,'Alex3','Four',78))trv.insert("",'end',iid=4,values=(5,'Alex4','Five',80))trv.insert("",'end',iid=5,values=(6,'Alex5','Sixr',40))trv.insert("",'end',iid=6,values=(7,'Ale圆','Four',70))trv.insert("",'end',iid=7,values=(8,'Alex7','Three',50))#trv.selection_set('b')#p_id=trv.selection()#print(p_id)def data_collect(*args): global i i=trv.selection() #iid value of the selection print(i)trv.bind("",data_collect) # On select event or rowmy_w.mainloop() Edit and update selected item value □ Parent-child node □We can set the parent and child rows or nodes to the Treeview. '' : Neither tree view nor headings are shown. ![]() Tree headings : (Default) Show both heading and expanding child node. Tree: Show tree view with expanding the child node. show option: trv = 'tree' □ headings: Show the headings without the column marked as #0 The line saying trv = 'tree' can take the value as headings trv = 'headings' and the column with #0 will be hidden. My_w.mainloop()Watch the column with #0, this column will display in Tree and show the text part given in each row. from tkinter import ttkimport tkinter as tk# Creating tkinter my_wmy_w = tk.Tk()my_w.geometry("260x280") my_w.title("# Using treeview widgettrv = ttk.Treeview(my_w, selectmode ='browse')trv.grid(row=1,column=1,padx=30,pady=20) Tkitner Treeview to get Parent Child nodes and display data in hierarchical order
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