partial void createEmployee(Foundation.NSObject sender)
{
NSUndoManager undo = this.UndoManager;
// Has an edit occurred already in this event?
if (undo.GroupingLevel > 0) {
// Close the last group
undo.EndUndoGrouping();
// Open a new group
undo.BeginUndoGrouping();
}
Person newEmployee = new Person();
Console.WriteLine("Adding {0} to {1}", newEmployee, Employees);
// Undo add
NSArray args = NSArray.FromObjects(new object[]{newEmployee});
undo.RegisterUndoWithTarget(this, new Selector("undoAdd:"), args);
undo.SetActionname(NSBundle.MainBundle.LocalizedString("ADD_PERSON", null));
Employees.Add(newEmployee);
StartObservingPerson(newEmployee);
tableView.ReloadData();
int row = Employees.IndexOf(newEmployee);
Console.WriteLine("Starting edit of {0} in row {1}", newEmployee, row);
// Begin the edit of the first column
tableView.SelectRow(row, false);
tableView.EditColumn(0, row, null, true);
}
public void StopObservingPerson(Person person)
{
person.RemoveObserver(this, new NSString("name"));
person.RemoveObserver(this, new NSString("expectedRaise"));
}
partial void btnCreateEmployee(Foundation.NSObject sender)
{
NSWindow w = tableView.Window;
// try to end any editing that is taking place
bool editingEnded = w.MakeFirstResponder(w);
if (!editingEnded) {
Console.WriteLine("Unable to end editing");
return;
}
NSUndoManager undo = this.UndoManager;
// Has an edit occurred already in this event?
if (undo.GroupingLevel > 0) {
// Close the last group
undo.EndUndoGrouping();
// Open a new group
undo.BeginUndoGrouping();
}
// Create the object
// Should be able to do arrayController.NewObject, but it returns an NSObjectController
// not an NSObject and also causes an InvalidCastException
// BUG: https://bugzilla.xamarin.com/show_bug.cgi?id=25620
// Person p = arrayController.NewObject;
// Workaround
// Person p = (Person)Runtime.GetNSObject (Messaging.IntPtr_objc_msgSend(arrayController.Handle, Selector.GetHandle ("newObject")));
// Plus I can't figure out how to get the Person object from NSObjectController. Ah, this is due to above bug.
// Creating my own Person object instead
Person p = new Person();
// Add it to the content array of arrayController
arrayController.AddObject(p);
// Re-sort (in case the user has sorted a column)
arrayController.RearrangeObjects();
// Get the sorted array
NSArray a = NSArray.FromNSObjects(arrayController.ArrangedObjects());
// Find the object just added
int row = -1;
for (nuint i = 0; i < a.Count; i++) {
if (p == a.GetItem<Person>(i)) {
row = (int)i;
break;
}
}
Console.WriteLine("Starting edit of {0} in row {1}", p, row);
// Begin the edit of the first column
tableView.EditColumn(0, row, null, true);
}
public void StartObservingPerson(Person person)
{
person.AddObserver(this, new NSString("name"), NSKeyValueObservingOptions.Old, this.Handle);
person.AddObserver(this, new NSString("expectedRaise"), NSKeyValueObservingOptions.Old, this.Handle);
}
public void InsertObjectInEmployeesAtIndex(Person p, int index)
{
NSUndoManager undo = this.UndoManager;
Console.WriteLine("Adding {0} to {1}", p, Employees);
// Add the inverse of this operation to the undo stack
NSArray args = NSArray.FromObjects(new object[]{p, new NSNumber(index)});
undo.RegisterUndoWithTarget(this, new Selector("undoAdd:"), args);
if (!undo.IsUndoing) {
undo.SetActionname("Add Person");
}
// Add the person to the array
this.StartObservingPerson(p);
Employees.Insert(p, index);
}
