Here's the screenshot. It shows the Bootstrap style was successfully applied, but not the live search feature. This list will eventually contain ~600 options so a search feature is required.
2 - I have also tried applying the following code - in a blank Razor page - lifted directly from the bootstrap-select documentation. The result is the same: it applies the Bootstrap style but not the live search functionality. Or indeed any other attribute that I have tried:
<select class="selectpicker" data-live-search="true">
<option data-tokens="ketchup mustard">Hot Dog, Fries and a Soda</option>
<option data-tokens="mustard">Burger, Shake and a Smile</option>
<option data-tokens="frosting">Sugar, Spice and all things nice</option>
I have tried all sorts over the last couple of days. Does anyone have any suggestions? Thank you.