Find and manipulate an HTML Element

[Gunther_Schabus]

Summary

I am unaware of how to access HTML Elements within a Streamlit Page.

Steps to reproduce

Code snippet:

st.button("Log me in", key="Login_Button", on_click=self.login)

Let’s say I want to delete this button. Is there a Streamlit way to get this done?

Any help is appreciated.

Thanks in advance, Günther

[CarlosSerrano]

Using callbacks and session states should be able to achieve that behavior. Here is an example.

import streamlit as st

if "is_logged_in" not in st.session_state:
    st.session_state["is_logged_in"] = False


def login():
    if "btn_login" in st.session_state:
        st.session_state["is_logged_in"] = True


if not st.session_state["is_logged_in"]:
    st.button("Login", key="btn_login", on_click=login)
else:
    st.write("Logged in!")

[Gunther_Schabus]

Hello Carlos,

thank you so much for your answer. You are absolutely correct, that this solves the problem. The question went more in the direction on how Streamlit supports manipulating DOM Elements.

Thanks for your time and have a great day.
br, Günther