public static void Validation()
{
using (var context = new UniversityDB()) {
var student = new Student()
{
PIB = string.Empty
};
context.Students.Add(student);
var validationErrors = context.GetValidationErrors().Where(vr => !vr.IsValid).SelectMany(vr => vr.ValidationErrors);
foreach (var error in validationErrors)
{
Console.WriteLine(error.ErrorMessage);
}
}
}
