How to do nested button and print both button outputs?

[Adarsh_Wase]

How to do this:

button1 = st.button('click')
if button1:
    st.write('button 1 is working')
    button2 = st.button('click me')
    if button2:
        st.write('button2 is working')

When I press button 1, I want it to print “button 1 is working” and show button2. And if I click on button 2, I want the button1 output to remain on the page + I want button 2 output.

How to do this?

[mathcatsand]

That is a popular question! Buttons don’t remember their state, so they will only be True immediately after being clicked (and hence a nested button with go away when clicked because the parent will go back to False). You can use session state and callback functions to extend the functionality.

I did a little introduction on extending widget functionality with session state here

Here’s a few cases other users have had with nested buttons (first link goes to my reply with sample code to show a basic case)

After clicking a submit button, create another submit button and do something else when that button is clicked

Buttons won’t hold their states (they will only be true if they were the last thing touched). So if you want to nest things with buttons, you can create something else in session state to reference rather than the button values directly. if 'stage' not in st.session_state: st.session_state.stage = 0 def set_stage(stage): st.session_state.stage = stage # Some code st.button('First Button', on_click=set_stage, args=(1,)) if st.session_state.stage > 0: # Some code st.button('Sec…

Invoking another st.button

Summary I am working on to display Movie recommendations; I am able to display 10 movies when a user input from st.selectbox and click on “Show Recommendation” Button. I am also able to get the button on caption of each movie but when i click on the button for one of the movies, it is not calling the function again. It is going to the first page of “Show Recommendation” with st.selectbox showing the movie name for which i got the 10 movies. When user click on the movie it shld display…

Form button not working

Summary I want to have a button that opens a form to take user input when clicked. The user writes stuff and clicks the submit button at which point the data is printed back to the app. I copied the st.form code on docs and modified it but when clicking the submit button, instead of displaying, the form closes and nothing happens. Steps to reproduce Code snippet: add_case = st.button('Add new Case') #on button click, display form if add_case: with st.form("my_form"): #company na…

[chinardankhara]

I will check your other posts. This helped me troubleshoot. Thanks! Side note: Do you know exactly how long does the button stay true after clicking?

[mathcatsand]

Every time you interact with something, the page reloads. So when you click a button, the page will reload with that button being True. As soon as you do anything else, the page will reload with that button being False. It’s not so much a length of time, just that it won’t survive past any other activity.