Chained dropdown

[wagnerbrito]

Hi, I’m new here and I need some help.

I have a table in which a column is written teacher-tutor and in another column all the students that are the responsibility of that teacher-tutor. I want to build a dropdown menu in which, from the choice of the teacher-tutor, in the second dropdown, only the students that are the responsibility of that teacher-tutor appear.

But I am not able to make the correct callback that will generate this filter. How do I do this?

I have attached the image of how I am building the dashboard.

(I’m Brazilian, my English is not advanced, I apologize if any sentence is strange)

[AIMPED]

Hi @wagnerbrito welcome to the forums.

this topic might help you, sound what you are trying to do:

The dropdown value auto change base on first filter

Hi, I want to develop one page for monitoring process status. The csv file had processes and codes as below sample. [image] And I used pandas df[‘Process’] .unique() and df[‘CODE’].unique() for dropdown filter. How the code filter auto changed base on ‘Process’ value? For example, when I choose Process=B, the CODE only show CODE3&CODE4? [image]

[wagnerbrito]

Hi @AIMPED!

Thanks so much!