CODEWITHSUNDEEP
pythontkinter
Etchosh
Etchosh

Reputation: 109

Deleting a label in Tkinter when submitting new Entry

I am trying to write a function through Tkinter with the following outcome: User types in some input and submits An outcome Label appears below the button as a result When a new input is added in the Entry when the user submits the previous labels is destroyed and only the new result label appears.

I have searched several answers but I was unsuccessful in reaching my goal as with the current code below if a user submits several inputs there will be several labels appearing and when the reset button is clicked only the very last label is deleted while the previous labels still appear.

Here is what I have tried:

root = Tk()
root.title("Search")
root.geometry("400x400")
 
greeting= Label(root, text="Hi, Please insert input" )
greeting.pack()
 
search=[]
 
e = Entry(root, width=50)
e.pack(padx=50)
 
def myClick(event=None):
    global mySubmit
    global reply
    mySubmit=Label(root, text=results())
    search.append(e.get())
    print(search)
    e.delete(0,"end")
    mySubmit.pack()
 
def results():
    global result
    if e.get()=="":
        result = "Please Insert inquiry"
        return result
    else:
        result = "www.reply.com"
        return result
 
def reset():
    global mySubmit
    mySubmit.destroy()
    mySubmit = Label()
 
root.bind('<Return>', myClick)
 
myButton= Button(root, text="Submit", command=myClick)
myButton.pack()
bt2=Button(root,text='RESET',bg='lightblue',command=reset)
bt2.pack()
 
root.mainloop()

Upvotes: 1

Views: 372

Answers (1)

Kartikeya
Kartikeya

Reputation: 838

Use winfo_ismapped() to know if that widget is already created or not. Pack it only when it is not already there.

from tkinter import *

root = Tk()
root.title("Search")
root.geometry("400x400")
 
greeting= Label(root, text="Hi, Please insert input" )
greeting.pack()
 
search=[]
 
e = Entry(root, width=50)
e.pack(padx=50)

 
def myClick(event=None):
    global mySubmit
    global reply
    
    search.append(e.get())
    print(search)
    e.delete(0,"end")
    if(not mySubmit.winfo_ismapped()): #make a widget only if the mySubmit label is not mapped (created) till now
        mySubmit.pack()
 
def results():
    global result
    if e.get()=="":
        result = "Please Insert inquiry"
        return result
    else:
        result = "www.reply.com"
        return result

mySubmit=Label(root, text=results())    #declare it here outside the function scope

def reset():
    global mySubmit
    mySubmit.destroy()
    mySubmit = Label()
 
root.bind('<Return>', myClick)
 
myButton= Button(root, text="Submit", command=myClick)
myButton.pack()
bt2=Button(root,text='RESET',bg='lightblue',command=reset)
bt2.pack()
 
root.mainloop()

Upvotes: 1

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