ESP32 Using Dropdown List in Html

Hi
I’m using dropdown list in my project with esp32.
I added it to my html with like this code.

I’m getting value (0,1,2,3) when i click “submit” button, but i can’t replace page (dropdown list) to selected value.

Please help me with sample code
Thanks

Hi Again
I solved it with javascripts like this;

Working Mode:

Thanks