How to make a request to compare login and password?

Question

C++ / C#

How to pull the login and password from the database and compare them with the input data that was entered intextbox

using (ApplicationContext db = new ApplicationContext(options))
            {
                var loginDates = db.Users.FromSqlRaw("SELECT Email, Password FROM Users").ToList();

                if(loginDates.Contains())
                {

                }
                    
            }

If you take this code, then you need an overload in the form User item, tried to overload with a parameter new User(_email, password), but the entity object does not contain a constructor with accepted parameters, that is, there was an idea to pass the login and date through variables and compare with the data from the database.

Answer 1

Look at the documentation. Add a provider and manage your application through it.
Everything you need is already there. There and password strength and recovery and much more.
https://docs.microsoft.com/en-us/aspnet/core/secur...
Updated
On the "Services" project tab, select "Enable client application services"
https://docs.microsoft.com/en-us/ visualstudio/ide/...
Then you get all the same only from the studio (not quite of course, but the studio will add blanks)