public ActionResult Create([Bind(Include = /*ID,*/ "LastName,FirstName,EnrollmentDate")] Student student)
{//Bind-include--mono auta tha perasoun(whitelist)---security ths method,prostateuw to model mou apo kakovoules energeies(security best practisies)
//bind one level of defensive programming
//defensive technic h try
//neos tropos gia apothhkeysh sthn DB
try //breakpoint edw an ftasei edw o kwdikas exw server side validation (opou exw C# einai serverside)
{
if (ModelState.IsValid)
{
db.Students.Add(student); //to kanei add se mia lista linq
// entity elegxei entities kai markarei(ws ADDED) tn student afou ginei add sto epomeno db.saveChenges
//An ginei allagh status:modified k sto epomeno SaveChanges
//By default UNCHANGED
//Entity status: ADDED,UNCHANGED,MODIFIED,DETACHED(ADIAFORIA APO TO ENTITY),DELETED
db.SaveChanges(); //to pernaei sthn DB
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Unable to save Changes");
}
return(View(student));
}
public ActionResult Create([Bind(Include = "Lastname,Firstname,EnrollmentDate")] Student student)
{
try
{
if (ModelState.IsValid)
{
db.Students.Add(student);
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Unable to save Changes");
}
return(View(student));
}
public ActionResult Create([Bind(Include = "CourseID,Title,Hours,DepartmentID")] Course course)
{
try
{
if (ModelState.IsValid)
{
db.Courses.Add(course);
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (Exception)
{
ModelState.AddModelError("", "Unable to save Changes");
}
//ViewBag.DepartmentID = new SelectList(db.Departments, "DepartmentID", "Name", course.DepartmentID);
PopulateDepartmentsDropDownList();
return(View(course));
}
public ActionResult Create([Bind(Include = "LastName,FirstName,HireDate, OfficeAssignment")] Instructor instructor, string[] selectedCourses)
{
//fill courses list on Instructor
if (selectedCourses != null)
{
instructor.Courses = new List <Course>();
foreach (var course in selectedCourses)
{
var courseToAdd = db.Courses.Find(int.Parse(course)); //int.parse gt h find fernei int---to course einai to course id
instructor.Courses.Add(courseToAdd);
}
if (ModelState.IsValid)
{
db.Instructors.Add(instructor);
db.SaveChanges(); //Instructor kai meta courses
return(RedirectToAction("Index"));
}
}
PopulateAssignedCourseData(instructor);
return(View(instructor));
}