DbContextSaveChanges.cs

using (var context = new InstituteEntities())
{
    var student = context.Students.Create();
    student.StudentFirstName = "Muhammad";
    student.StudentLastName = "Siddiqi";
    context.Students.Add(student);

    try
    {
        //save changes
        context.SaveChanges();
    }
    catch (DbEntityValidationException validationException)
    {
        string validationErrorMessage =
            DbEntityValidationMessageParser.GetErrorMessage(validationException);

        Console.WriteLine(validationErrorMessage);
    }
}