Start function after user closed st.dialog

Using Streamlit
1

Hello, I am using st.dialog. I want to start a function after user closed the dialog. Is that possible? Thanks. Best regards. Gerhard

2

Here’s a simple example

import streamlit as st

PROBLEM = """Hello, I am using st.dialog. I want to start a function after user closed the dialog. Is that possible? Thanks. Best regards. Gerhard"""


if "num_runs" not in st.session_state:
    st.session_state["num_runs"] = 0


def my_function():
    st.session_state["num_runs"] += 1


@st.experimental_dialog("my_dialog")
def my_dialog():
    if st.button("Close"):
        my_function()
        st.rerun()


if st.button("Open Dialog"):
    my_dialog()

st.write("Num runs:", st.session_state["num_runs"])
3

Thanks. If user uses the cross in the right corner of dialog, st.button(„Close“) does nothing.
Perhaps I did not understand it correctly.

Best regards Gerhard

4

That’s correct, clicking the X or hitting escape does close the dialog, but cannot trigger another function.

5

Is it possible to see in Python if the dialog is open?

6

No, not including if it’s closed by clicking the X

7

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