Dynamic Views / Razor Pages in ASP.NET CORE 2.0

ASP.NET CORE 2.0 MVC using Visual Studio 2017. a create view (input form) that has a drop down and based on the selection in the drop down I would like to alter what is displayed in the create view (input form) For example: By default I would like to display some default input fields such as as Name, Date, Reason, Contact Phone number. Some sample entries in the drop down are Engineering, Mechanical, Maintenance. and if the user selects "Engineering" I would like the create view / input form to displayinput fields Engineering Area and Engineering Region, Engineering priority in addition to the above default fields. If the user selects "Mechanical" I would like the create view / input form to display input fields. Mechanical Problem and Mechanical Estimate, Mechanical Resourses in addition to the above mentioned default fields. If the user selects "Maintenance" I would like the create view / input form to display input fields. Maintenance Assignment and Maintenance Severity, in addition to the above mentioned default fields.