Using file_selector ‘on_action’ callback

[gmarabout]

Hello!

I have a newbie question related to file_selector/callbacks 🙂

I want to use the file_selector to load a CSV file.
Here is what I am currently doing:

`
contents = “””
<|file_selector|label=Upload dataset|on_action=load_csv_file|extensions=.csv|>
“””

def load_csv_file(selection):
dataset = pd.read_csv(selection)

`

However, the selection is not the selected file, but an (empty) _State_ object…
Am I missing something?
How should I get the selected path so that I can do something with it?

Thanks for your help!

Greg

[Florian Jacta]

Hi Greg,

I have created a little code for you to help you use this control. This control is attached to a Python variable (here “path”). The value will be the path of the selected file. The real-time value of “path” can be found in the State object as below. The State object contains every GUI variable used by the application (https://docs.taipy.io/en/latest/getting_started/step_02/ReadMe/#multi-client—state).

———–
from taipy.gui import Gui
import pandas as pd

path = None

md = “<|{path}|file_selector|label=Upload dataset|on_action=load_csv_file|extensions=.csv|>”

def load_csv_file(state):
data = pd.read_csv(state.path)
print(data)

Gui(md).run()
———–

I hope that helps. If you need anything else, feel free to ask.
Florian

[gmarabout]

Awesome! Thanks Florian!

[Author]

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