asked on March 12, 2026
Dear Flexmonster Team,
I am currently developing a data visualization application using Flexmonster with a custom data source API and have a question regarding the support for cascading filters.
In our project, we are using a custom data source API and require functionality where the selection in one filter dynamically restricts the options available in a subsequent filter. This is often referred to as cascading filters or dependent filters. For example, I would like the selection in a Category filter to dynamically adjust the available options in a Subcategory filter based on the data retrieved from our API.
My question is: Does Flexmonster natively support this type of cascading filters when using a custom data source API? If so, could you please provide instructions or examples on how to implement this functionality?
If this functionality is not directly supported, are there any recommended workarounds?
Thank you in advance for your assistance.
Best regards,
⋅ March 13, 2026
Hello,
Thank you for contacting us.
Flexmonster currently does not provide built-in support for cascading filters, even when using a custom data source API. By design, all members for each field are loaded once (from your custom data source), while the filter pop‑ups always show the full member list for that field. Applying a filter on one field does not change the available members shown for another field.
However, this feature has already been added to our customers' wishlist. We will notify you in case of any updates on the matter.
We hope that the information provided is helpful.
Kind regards,
Nadia
