how to create generic method in asp dot net

To declare a generic type, you can specify a type parameter in angle brackets after a type name. For example, TypeName<T> where T is a type parameter.

Here’s an example of using generics in a .NET application:
Create a new project in Visual Studio
Create two model classes to represent the Product and Seller entities
Create a context class to add the database settings
Create a generic repository
Add the dependency injections
Create the API endpoints
Generate the migrations
Test the application