private static void UpdateOnlineCourseUsingSetValue(Course course)
{
using (var ctx = new CoreModelContext())
{
//var entry = ctx.Courses.Where(c => c.Id == course.Id).FirstOrDefault();
ctx.OnlineCourses.Load();
var entry =
ctx.ChangeTracker.Entries<OnlineCourse>().FirstOrDefault(e => ((int)e.CurrentValues["Id"]) == course.Id);
if (entry != null)
{
entry.CurrentValues.SetValues(course); //Great way to use DTO objects to set only subset of properties without empty out other property values
ctx.SaveChanges();
}
}
}
private static void UpdateCourse(Course course)
{
using (var ctx = new CoreModelContext())
{
ctx.Entry(course).State = course.Id == 0 ? EntityState.Added : EntityState.Modified;
ctx.SaveChanges();
}
}
