How to escape user input?

Question

ASP.NET

I work in a sheaf ASP.NET Core C#+Dapper
Users are registered in system. Found in the database records like <script>alert('sss')script> and so on.
The question is, should user input be escaped? If yes, how to do it?
using C# or Dapper? can you give some examples?

Answer 1

The question is, should user input be escaped? Yes.

If yes, how to do it?
using C# or Dapper?

At the front. Save it to the database as it is, but when you show it to someone, use HTML entity