How to detect a single cell selection on the st.dataframe component

Dieter · October 2, 2024, 12:03pm

Hi all,

I like the dataframe component a lot, but I wonder how to specify that
I want to detect only single cell selections. I’m doing it like this

    df = st.dataframe(
        get_data_frame(),
        on_select=selected,
        hide_index=True,
        key="df",
        selection_mode=["single-column", "single-row"],
        )

but this seems not to work.

mathcatsand · October 2, 2024, 3:22pm

Single cell selection events aren’t yet supported, but they are on the radar. You can upvote the GitHub issue to let our devs know it’s something to prioritize:

github.com/streamlit/streamlit

Add cell selection functionality to `st.dataframe`

opened 01:20PM - 02 Jun 23 UTC

xareelee

type:enhancement feature:st.dataframe area:events

### Problem In the official tutorial about [`st.dataframe`](https://docs.stre…amlit.io/library/api-reference/data/st.dataframe#interactivity), it provides a well interactive UI, but it lacks one important feature: **indicate the selected `(row, column)`**. For example: ```py import streamlit as st import pandas as pd import numpy as np df = pd.DataFrame( np.random.randn(50, 20), columns=('col %d' % i for i in range(20))) st.dataframe(df) ``` We can change the last line to the following: ```py row, column = st.dataframe(df) ``` And we can select a specific cell in the GUI: ![Screenshot 2023-06-02 at 21 17 16](https://github.com/streamlit/streamlit/assets/804308/adeed4cd-3778-4fdb-a294-bb97cfa0ca08) Now we can do something with the selected row and/or column (in the above case: `row==4` and `column=="col 2"`). For example, we can show the detail info for the selected row. --- Community voting on feature requests enables the Streamlit team to understand which features are most important to our users. **If you'd like the Streamlit team to prioritize this feature request, please use the 👍 (thumbs up emoji) reaction in response to the initial post.**

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How to detect a single cell selection on the st.dataframe component

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