[Tkinter] Tkinter delete combobox content and not the list

[LagratteCchouette]

Good morning all,

I want to delete to zero my "combobox" for a next entry. I have read is studied a lot of tutorials, but I found nothing to get to just delete the selected content in the field. I'm missing something, but I can't see it. Could you please help me. I am progressing slowly, but surely .

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Traceback (most recent call last):   File "C:\Users\xxxxxx\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 1705, in __call__     return self.func(*args)   File "C:\Users\xxxxxx\Documents\PythonDevProgramme\MnesisProject\main4.py", line 358, in <lambda>     command=lambda : save_citation(combo_auteur.get(), combo_theme.get(), entry_citation.get('1.0', END), entry_ref.get('1.0', END)))   File "C:\Users\xxxxx\Documents\PythonDevProgramme\MnesisProject\main4.py", line 306, in save_citation     combo_auteur.subwidget_list['cmb_nomsauteur'].delete(0, Tk.END) AttributeError: 'Combobox' object has no attribute 'subwidget_list'

Here are my comboboxes:

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def cmb_nomsauteur(event=None):     connexion = sqlite3.connect('mnesis.db')     cursor = connexion.cursor()     cursor.execute('SELECT auteur_auteur FROM tb_auteur ORDER BY auteur_auteur')     data = []     for row in cursor.fetchall():         data.append(row[0])

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def cmb_theme(event=None):     connexion = sqlite3.connect('mnesis.db')     cursor = connexion.cursor()     cursor.execute('SELECT theme_theme FROM tb_theme ORDER BY theme_theme')     data = []     for row in cursor.fetchall():         data.append(row[0])     return data

My function and lines 18 to 23 we find the subject of my request:

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def save_citation(citation_auteur, citation_theme, citation_citation, citation_reference):     """ Insertion des données dans database tb_citation """     try:                connection = sqlite3.connect('mnesis.db') # Connection à la BdD             cursor = connection.cursor() # création du curseur             #création variable new_citation             req = "INSERT INTO tb_citation( citation_auteur, citation_theme, citation_citation, citation_reference) VALUES ('"+citation_auteur+"','"+citation_theme+"', '"+citation_citation+"', '"+citation_reference+"')"             cursor.execute(req)        except Exception as e:             print("ERREUR",e)             connection.rollback()     finally:             cursor.close()             connection.commit() # Valider l'enregistrement dans la database             connection.close() ## Fermeture de la connection                # Delete textbox after records             combo_auteur.subwidget_list['cmb_nomsauteur'].delete(0, Tk.END)             combo_theme.subwidget_list['cmb_theme'].delete(0, Tk.END)             entry_citation.delete('1.0', END)             entry_verset.delete('1.0', END)             entry_ref.delete('1.0', END)

My form:

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def write_citation():     global combo_auteur     global combo_theme     global entry_citation     global entry_verset     global entry_ref        tpl_citation = Toplevel()     tpl_citation.title(" Bienvenue dans la saisie des citations")     screen_x = int(tpl_citation.winfo_screenwidth())     screen_y = int(tpl_citation.winfo_screenheight())     tpl_citation_x = 1024     tpl_citation_y = 600     pos_x = (screen_x // 2) - (tpl_citation_x // 2)     pos_y = (screen_y // 2) - (tpl_citation_y // 2)     geo = "{}x{}+{}+{}".format(tpl_citation_x, tpl_citation_y, pos_x, pos_y)     tpl_citation.geometry(geo)     tpl_citation.resizable(width=False,height=False)     tpl_citation.configure(bg='lightblue3')     #---     citation_auteur_label = Label(tpl_citation, text="Auteur",bg='lightblue3', font=("Arial", 12,"bold"))     citation_auteur_label.place(x=30,y=38)     combo_auteur = ttk.Combobox(tpl_citation, values=cmb_nomsauteur(), width=25, font=("Century Gothic", 14,"bold"))     combo_auteur.bind('<<ComboboxSelected>>', cmb_nomsauteur)     combo_auteur.place(x=30,y=65)     citation_theme_label = Label(tpl_citation, text="Thème",bg='lightblue3', font=("Arial", 12,"bold"))     citation_theme_label.place(x=450,y=38)        combo_theme = ttk.Combobox(tpl_citation, values=cmb_theme(), width=25, font=("Century Gothic", 14,"bold"))     combo_theme.bind('<<ComboboxSelected>>', cmb_theme)     combo_theme.place(x=450,y=65)     #------------           citation_label = Label(tpl_citation, text="Citation",bg='lightblue3', font=("Arial", 12,"bold"))     citation_label.place(x=30,y=100)     entry_citation = Text(tpl_citation, width="107", height="19", font=("Arial", 12))     entry_citation.place(x=30,y=127)     ref_label = Label(tpl_citation, text="Référence",bg='lightblue3', font=("Arial", 12,"bold"))     ref_label.place(x=30,y=485)     entry_ref = Text(tpl_citation, width="107", height="1",font=("Arial", 12))     entry_ref.place(x=30,y=512)     boutonEnregistrer = Button(tpl_citation, text='Enregistrer',                                command=lambda : save_citation(combo_auteur.get(), combo_theme.get(), entry_citation.get('1.0', END), entry_ref.get('1.0', END)))     boutonEnregistrer.pack(side=BOTTOM, anchor=SE, padx=20, pady=20)        # end     tpl_citation.mainloop()

[joe_momma]

The document on ttk combobox docs
it inherits from entry, you wrote: combo_auteur.subwidget_list['cmb_nomsauteur'].delete(0, Tk.END)
to- combo_auteur.delete(0, Tk.END)
which will clear it.

[LagratteCchouette]

Thank you so much,
And if I understood correctly...
but i still miss some notions

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# Delete textbox after records combo_auteur.delete(0, Tk.END) combo_theme.delete(0, Tk.END) entry_citation.delete('1.0', END) entry_verset.delete('1.0', END) entry_ref.delete('1.0', END)

I still have an error message

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Exception in Tkinter callback Traceback (most recent call last):   File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python37\lib\tkinter\__init__.py", line 1705, in __call__     return self.func(*args)   File "C:\Users\xxxx\Documents\PythonDevProgramme\MnesisProject\main5.py", line 358, in <lambda>     command=lambda : save_citation(combo_auteur.get(), combo_theme.get(), entry_citation.get('1.0', END), entry_ref.get('1.0', END)))   File "C:\Users\xxxxx\Documents\PythonDevProgramme\MnesisProject\main5.py", line 306, in save_citation     combo_auteur.delete(0, Tk.END) AttributeError: type object 'Tk' has no attribute 'END'

my function :

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def save_citation(citation_auteur, citation_theme, citation_citation, citation_reference):     try:                connection = sqlite3.connect('mnesis.db')             cursor = connection.cursor()             #création variable new_citation             req = "INSERT INTO tb_citation( citation_auteur, citation_theme, citation_citation, citation_reference) VALUES ('"+citation_auteur+"','"+citation_theme+"', '"+citation_citation+"', '"+citation_reference+"')"             cursor.execute(req)                                                         except Exception as e:             print("ERREUR",e)             connection.rollback()     finally:             cursor.close()             connection.commit()             connection.close()               # Delete textbox after records             combo_auteur.delete(0, Tk.END)             combo_theme.delete(0, Tk.END)             entry_citation.delete('1.0', END)             entry_verset.delete('1.0', END)             entry_ref.delete('1.0', END)

[joe_momma]

try 'end' as a string combo_auteur.delete('0','end')

[LagratteCchouette]

Great, you're really cool. Wedge works very well, that's right

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def clear():     """ Delete textbox after records """           combo_auteur.delete('0','end')     combo_theme.delete('0','end')     entry_citation.delete('1.0', END)     entry_ref.delete('1.0', END)