public ObservableList(IEnumerable <T> collection)
{
list = new List <T>(collection);
//foreach (INotifyPropertyChanged item in collection)
foreach (T item in collection)
{
//item.PropertyChanged += new PropertyChangedEventHandler(OnPropertyChangedHandler);
T oldValue = null;
ObservableItemsTools.SetNewObservedValue <T>(item, ref oldValue, OnPropertyChangedHandler);
}
}
// Summary:
// Gets or sets the element at the specified index.
//
// Parameters:
// index:
// The zero-based index of the element to get or set.
//
// Returns:
// The element at the specified index.
//
// Exceptions:
// System.ArgumentOutOfRangeException:
// index is not a valid index in the System.Collections.IList.
//
// System.NotSupportedException:
// The property is set and the System.Collections.IList is read-only.
object IList.this[int index]
{
get
{
return(((IList)list)[index]);
}
set
{
T oldValue = list[index];
ObservableItemsTools.SetNewObservedValue <T>(value as T, ref oldValue, OnPropertyChangedHandler);
((IList)list)[index] = value;
}
}
//
// Summary:
// Removes the first occurrence of a specific object from the System.Collections.IList.
//
// Parameters:
// value:
// The object to remove from the System.Collections.IList.
//
// Exceptions:
// System.NotSupportedException:
// The System.Collections.IList is read-only.-or- The System.Collections.IList
// has a fixed size.
void IList.Remove(object value)
{
T oldValue = value as T;
ObservableItemsTools.SetNewObservedValue <T>(null, ref oldValue, OnPropertyChangedHandler);
((IList)list).Remove(value);
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, value);
#endif
OnCollectionChanged(arg);
}
//
// Summary:
// Inserts an item to the System.Collections.IList at the specified index.
//
// Parameters:
// index:
// The zero-based index at which value should be inserted.
//
// value:
// The object to insert into the System.Collections.IList.
//
// Exceptions:
// System.ArgumentOutOfRangeException:
// index is not a valid index in the System.Collections.IList.
//
// System.NotSupportedException:
// The System.Collections.IList is read-only.-or- The System.Collections.IList
// has a fixed size.
//
// System.NullReferenceException:
// value is null reference in the System.Collections.IList.
void IList.Insert(int index, object value)
{
T oldValue = null;
ObservableItemsTools.SetNewObservedValue <T>(value as T, ref oldValue, OnPropertyChangedHandler);
((IList)list).Insert(index, value);
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, value);
#endif
OnCollectionChanged(arg);
}
// Summary:
// Adds an item to the System.Collections.Generic.ICollection<T>.
//
// Parameters:
// item:
// The object to add to the System.Collections.Generic.ICollection<T>.
//
// Exceptions:
// System.NotSupportedException:
// The System.Collections.Generic.ICollection<T> is read-only.
public void Add(T item)
{
list.Add(item);
T oldValue = null;
ObservableItemsTools.SetNewObservedValue <T>(item, ref oldValue, OnPropertyChangedHandler);
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item);
#endif
OnCollectionChanged(arg);
}
//
// Summary:
// Removes the System.Collections.Generic.IList<T> item at the specified index.
//
// Parameters:
// index:
// The zero-based index of the item to remove.
//
// Exceptions:
// System.ArgumentOutOfRangeException:
// index is not a valid index in the System.Collections.Generic.IList<T>.
//
// System.NotSupportedException:
// The System.Collections.Generic.IList<T> is read-only.
public void RemoveAt(int index)
{
T oldValue = list[index];
T removedValue = oldValue;
ObservableItemsTools.SetNewObservedValue <T>(null, ref removedValue, OnPropertyChangedHandler);
list.RemoveAt(index);
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, oldValue);
#endif
OnCollectionChanged(arg);
}
//
// Summary:
// Removes all items from the System.Collections.Generic.ICollection<T>.
//
// Exceptions:
// System.NotSupportedException:
// The System.Collections.Generic.ICollection<T> is read-only.
public void Clear()
{
int count = list.Count;
T newVal = null;
foreach (T item in list)
{
T it = item;
ObservableItemsTools.SetNewObservedValue <T>(newVal, ref it, OnPropertyChangedHandler);
//item.PropertyChanged -= new PropertyChangedEventHandler(OnPropertyChangedHandler);
}
list.Clear();
if (count > 0)
{
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
OnCollectionChanged(arg);
}
}
//
// Summary:
// Removes the first occurrence of a specific object from the System.Collections.Generic.ICollection<T>.
//
// Parameters:
// item:
// The object to remove from the System.Collections.Generic.ICollection<T>.
//
// Returns:
// true if item was successfully removed from the System.Collections.Generic.ICollection<T>;
// otherwise, false. This method also returns false if item is not found in
// the original System.Collections.Generic.ICollection<T>.
//
// Exceptions:
// System.NotSupportedException:
// The System.Collections.Generic.ICollection<T> is read-only.
public bool Remove(T item)
{
T removedItem = item;
ObservableItemsTools.SetNewObservedValue <T>(null, ref removedItem, OnPropertyChangedHandler);
bool retval = list.Remove(item);
if (retval)
{
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item);
#endif
OnCollectionChanged(arg);
}
return(retval);
}
//
// Summary:
// Adds the elements of the specified collection to the end of the System.Collections.CI.Common.ObservableList<T>.
//
// Parameters:
// collection:
// The collection whose elements should be added to the end of the System.Collections.CI.Common.ObservableList<T>.
// The collection itself cannot be null, but it can contain elements that are
// null, if type T is a reference type.
//
// Exceptions:
// System.ArgumentNullException:
// collection is null.
public void AddRange(IEnumerable <T> collection)
{
if (collection == null)
{
throw new ArgumentNullException();
}
list.AddRange(collection);
T oldValue = null;
foreach (var item in collection)
{
oldValue = null;
ObservableItemsTools.SetNewObservedValue <T>(item, ref oldValue, OnPropertyChangedHandler);
}
var arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
OnCollectionChanged(arg);
}
// Summary:
// Gets or sets the element at the specified index.
//
// Parameters:
// index:
// The zero-based index of the element to get or set.
//
// Returns:
// The element at the specified index.
//
// Exceptions:
// System.ArgumentOutOfRangeException:
// index is not a valid index in the System.Collections.Generic.IList<T>.
//
// System.NotSupportedException:
// The property is set and the System.Collections.Generic.IList<T> is read-only.
public T this[int index]
{
get
{
return(list[index]);
}
set
{
T oldValue = list[index];
ObservableItemsTools.SetNewObservedValue <T>(value, ref oldValue, OnPropertyChangedHandler);
list[index] = value;
#if SILVERLIGHT
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset);
#else
NotifyCollectionChangedEventArgs arg = new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Replace, value, oldValue);
#endif
OnCollectionChanged(arg);
}
}
