public ActionResult EditPost(int?id, string[] selectedCourses)
{
if (id == null)
{
return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
}
var instructorToUpdate = db.Instructors
.Include(i => i.OfficeAssignment)
.Include(i => i.Courses)
.Where(i => i.ID == id)
.Single();
if (TryUpdateModel(instructorToUpdate, "", new string[] { "LastName", "FirstMidName", "HireDate", "OfficeAssignment" }))
{
try
{
if (string.IsNullOrWhiteSpace(instructorToUpdate.OfficeAssignment.Location))
{
instructorToUpdate.OfficeAssignment = null;
}
UpdateInstructorCourses(selectedCourses, instructorToUpdate);
db.Entry(instructorToUpdate).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
catch (RetryLimitExceededException)
{
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
}
PopulateAssignedCourseData(instructorToUpdate);
return(View(instructorToUpdate));
}
public ActionResult Edit([Bind(Include = "ID,LastName,FirstMidName,EnrollmentDate")] Student student)
{
try
{
if (ModelState.IsValid)
{
db.Entry(student).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Unable to save chages.");
throw;
}
return(View(student));
}
public ActionResult Edit([Bind(Include = "CourseID,Title,Credits,DepartmentID")] Course course)
{
try
{
if (ModelState.IsValid)
{
db.Entry(course).State = EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
}
catch (DataException)
{
ModelState.AddModelError("", "Unable to save changes. Try again, and if the problem persists, see your system administrator.");
}
PopulateDepartmentsDropDownList(course.DepartmentID);
return(View(course));
}
public async Task <ActionResult> Edit([Bind(Include = "DepartmentID, Name, Budget, StartDate, RowVersion,InstructorID")] Department department)
{
try
{
if (ModelState.IsValid)
{
ValidateOneAdministratorAssignmentPerInstructor(department);
}
if (ModelState.IsValid)
{
db.Entry(department).State = EntityState.Modified;
await db.SaveChangesAsync();
return(RedirectToAction("Index"));
}
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var clientValues = (Department)entry.Entity;
var databaseEntry = entry.GetDatabaseValues();
if (databaseEntry == null)
{
ModelState.AddModelError(string.Empty,
"Unable to save changes. The department was deleted by another user.");
}
else
{
var databaseValues = (Department)databaseEntry.ToObject();
if (databaseValues.Name != clientValues.Name)
{
ModelState.AddModelError("Name", "Current value: "
+ databaseValues.Name);
}
if (databaseValues.Budget != clientValues.Budget)
{
ModelState.AddModelError("Budget", "Current value: "
+ String.Format("{0:c}", databaseValues.Budget));
}
if (databaseValues.StartDate != clientValues.StartDate)
{
ModelState.AddModelError("StartDate", "Current value: "
+ String.Format("{0:d}", databaseValues.StartDate));
}
if (databaseValues.InstructorID != clientValues.InstructorID)
{
ModelState.AddModelError("InstructorID", "Current value: "
+
db.Instructors.Find(databaseValues.InstructorID).FullName);
}
ModelState.AddModelError(string.Empty, "The record you attempted to edit "
+ "was modified by another user after you got the original value.The "
+ "edit operation was canceled and the current values in the database "
+ "have been displayed. If you still want to edit this record, click "
+ "the Save button again. Otherwise click the Back to List hyperlink.");
department.RowVersion = databaseValues.RowVersion;
}
}
catch (RetryLimitExceededException /* dex */)
{
ModelState.AddModelError(string.Empty, "Unable to save changes. Try again, and if the problem persists contact your system administrator.");
}
ViewBag.InstructorID = new SelectList(db.Instructors, "ID", "FullName",
department.InstructorID);
return(View(department));
}
