st.column_config.LinkColumn

Configure a link column in st.dataframe or st.data_editor.

The cell values need to be string and will be shown as clickable links. This command needs to be used in the column_config parameter of st.dataframe or st.data_editor. When used with st.data_editor, editing will be enabled with a text input widget.

Function signature[source]

st.column_config.LinkColumn(label=None, *, width=None, help=None, disabled=None, required=None, default=None, max_chars=None, validate=None, display_text=None)

Parameters

label (str or None)

The label shown at the top of the column. If None (default), the column name is used.

width ("small", "medium", "large", or None)

The display width of the column. Can be one of "small", "medium", or "large". If None (default), the column will be sized to fit the cell contents.

help (str or None)

An optional tooltip that gets displayed when hovering over the column label.

disabled (bool or None)

Whether editing should be disabled for this column. Defaults to False.

required (bool or None)

Whether edited cells in the column need to have a value. If True, an edited cell can only be submitted if it has a value other than None. Defaults to False.

default (str or None)

Specifies the default value in this column when a new row is added by the user.

max_chars (int or None)

The maximum number of characters that can be entered. If None (default), there will be no maximum.

validate (str or None)

A regular expression (JS flavor, e.g. "^https://.+$") that edited values are validated against. If the input is invalid, it will not be submitted.

display_text (str or None)

The text that is displayed in the cell. Can be one of:

  • None (default) to display the URL itself.
  • A string that is displayed in every cell, e.g. "Open link".
  • A regular expression (JS flavor, detected by usage of parentheses) to extract a part of the URL via a capture group, e.g. "https://(.*?)\.example\.com" to extract the display text "foo" from the URL "https://foo.example.com".

For more complex cases, you may use Pandas Styler's format function on the underlying dataframe. Note that this makes the app slow, doesn't work with editable columns, and might be removed in the future. Text formatting from column_config always takes precedence over text formatting from pandas.Styler.

Examples

import pandas as pd
import streamlit as st

data_df = pd.DataFrame(
    {
        "apps": [
            "https://roadmap.streamlit.app",
            "https://extras.streamlit.app",
            "https://issues.streamlit.app",
            "https://30days.streamlit.app",
        ],
        "creator": [
            "https://github.com/streamlit",
            "https://github.com/arnaudmiribel",
            "https://github.com/streamlit",
            "https://github.com/streamlit",
        ],
    }
)

st.data_editor(
    data_df,
    column_config={
        "apps": st.column_config.LinkColumn(
            "Trending apps",
            help="The top trending Streamlit apps",
            validate=r"^https://[a-z]+\.streamlit\.app$",
            max_chars=100,
            display_text=r"https://(.*?)\.streamlit\.app"
        ),
        "creator": st.column_config.LinkColumn(
            "App Creator", display_text="Open profile"
        ),
    },
    hide_index=True,
)
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