Adrien Treuille treuille

GenAI Product at Snowflake | Co-founder and CEO at Streamlit | Team Lead at Google X | CS Prof at Carnegie Mellon | MIT 35 Under 35

treuille / streamlit_app.py

Created November 22, 2022 02:46

Example of how to access widget state in a callback.

	import streamlit as st

	with st.echo():
	def on_change():
	st.write(f"my_selection (1): `{st.session_state.my_selection}`")

	my_selection = st.selectbox(
	"Select something", ["a", "b"], on_change=on_change, key="my_selection"
	)
	st.write(f"my_selection (2): `{st.session_state.my_selection}`")