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treuille/streamlit_app.py

Created November 22, 2022 02:46
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Example of how to access widget state in a callback.
Raw
streamlit_app.py
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}`")
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To see this in action run:

streamlit run https://gist.githubusercontent.com/treuille/427a7359c591adf4685110e34f3af4a9/raw/18c19de9e058d943710308f88d4d16053395c47e/streamlit_app.py

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