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How to change background color of a cell based on the another cell value? (Conditional style in dash table)

Consider I have the following table. I want to change the background color of the cell in row 1 to green if the cell value in row 3 in column ‘a’ equals 1. How can I do this? (Conditional style in dash table)


HI @hamedk and welcome to the Dash community :slight_smile:

One way to do this is to use a variable to update the background color for the cells.

Here is an example:

import dash
import dash_table
import pandas as pd

data = dict([("a", [4, 2, 1]), ("b", [6, 3, 0])])
df = pd.DataFrame(data)

bg_color = "white"
if df.iloc[2]["a"] == 1:
    bg_color = "green"

app = dash.Dash(__name__)

app.layout = dash_table.DataTable(
    columns=[{"name": i, "id": i} for i in df.columns],    
            "if": {"row_index": 0, "column_id": "a"},
            "backgroundColor": bg_color,            

if __name__ == "__main__":
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Thank you so much :v:

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