Problem: When working in ASP.Net Core 2.2.1, you might find yourself in need to just insert the data without going throught the trouble of updating the Models in the Data Context.

This rather a painful procedure if you don't know what you are doing, to help you resolve the problem, below is the solution. I must say that some solutions might not work with your specific problem, in this case keep on experimenting and find what works in your scenerial.

Answer:
List SqlParameter sqlParameters = new List SqlParameter();
sqlParameters.add("AddYourParameterAsShownInDB",ValueHere);
sqlParameters.add("AddYourParameterAsShownInDB",ValueHere);

_context.Database.ExecuteSqlCommand("NameOfYourStoreProc ParameterAsShownInDB, AnotherParameterAsShownInDB", ValueOfParameterOne, ValueOfParameterTwo);