I am creating a custom search view with Drop-down Menu which further contains checkbox elements. But it seems that its not possible straight away using Toolset. I was just curious if there is a way to do it using Toolset. It would be helpful if you can reply this query.
I am attaching a screenshot of a similar work which I am trying to achieve with Toolset. Particular view is enclosed in a box with red border.
I visited the site to look at the markup for that filter but the page I went to presented them as normal checkboxes (see screenshot).
I suspect that the field you are looking at is a checkboxes filter, and then some custom styling has been used to hide the checkboxes within a dropdown.
You could do something similar, but it's a custom solution.
To be clear, you can output the search filters as a dropdown, or as checkboxes, but not as both in some kind of hybrid.
I would study the site to see how they have done it to see whether you can reproduce it, bearing in mind that the starting point will almost certainly be to display the filter as checkboxes. They could be using a 3rd-party JavaScript library that lets you present checkboxes inputs in the dropdown that way, but if one exists I'm not familiar with it.