private void OnDictionaryItemRemoved(string key)
{
if (DictionaryChanged != null)
{
var eventArgs = NotifyDictionaryChangedEventArgs <string, object> .ForRemoveAction(key);
DictionaryChanged(this, eventArgs);
}
}
private void OnDictionaryReset()
{
if (DictionaryChanged != null)
{
var eventArgs = NotifyDictionaryChangedEventArgs <string, object> .ForResetAction();
DictionaryChanged(this, eventArgs);
}
}
private void OnDictionaryItemChanged(string key, object oldValue, object newValue)
{
if (DictionaryChanged != null)
{
var eventArgs = NotifyDictionaryChangedEventArgs <string, object> .ForValueChangedAction(key, oldValue, newValue);
DictionaryChanged(this, eventArgs);
}
}
/// <summary>Removes an item from the instance.</summary>
/// <param name="key">The key of the item to remove from the instance.</param>
/// <returns><c>true</c> if the item was succesfully removed; otherwise, <c>false</c>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="key" /> is <c>null</c>.</exception>
/// <exception cref="NotSupportedException">The instance is <c>read-only</c>.</exception>
public bool Remove(string key)
{
var removed = _items.Remove(key);
if (removed)
{
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForRemoveAction(key));
}
return(removed);
}
/// <summary>Removes an item from the instance.</summary>
/// <param name="item">The item to remove from the instance.</param>
/// <returns><c>true</c> if the item was succesfully removed; otherwise, <c>false</c>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="item" />.<see cref="KeyValuePair{TKey, TValue}.Key" /> is <c>null</c>.</exception>
/// <exception cref="NotSupportedException">The instance is <c>read-only</c>.</exception>
bool ICollection <KeyValuePair <string, object> > .Remove(KeyValuePair <string, object> item)
{
var removed = _items.Remove(item);
if (removed)
{
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForRemoveAction(item.Key));
}
return(removed);
}
/// <summary>Gets or sets the item with the specified <paramref name="key" />.</summary>
/// <param name="key">The key of the item to get or set.</param>
/// <returns>The item with the specified <paramref name="key" />.</returns>
/// <exception cref="ArgumentNullException"><paramref name="key" /> is <c>null</c>.</exception>
/// <exception cref="KeyNotFoundException">On <c>get</c>: An item with the specified <paramref name="key" /> could not be found.</exception>
/// <exception cref="NotSupportedException">On <c>set</c>: The instance is <c>read-only</c>.</exception>
public object this[string key]
{
get
{
return(_items[key]);
}
set
{
if (_items.ContainsKey(key))
{
var oldValue = _items[key];
_items[key] = value;
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForValueChangedAction(key, oldValue, value));
}
else
{
_items[key] = value;
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForAddAction(key));
}
}
}
/// <summary>Removes all items from the instance.</summary>
/// <exception cref="NotSupportedException">The instance is <c>read-only</c>.</exception>
public void Clear()
{
_items.Clear();
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForResetAction());
}
/// <summary>Adds an item to the instance.</summary>
/// <param name="item">The item to add to the instance.</param>
/// <exception cref="ArgumentException">An item with the same <paramref name="item" />.<see cref="KeyValuePair{TKey, TValue}.Key" /> already exists in the instance.</exception>
/// <exception cref="ArgumentNullException"><paramref name="item" />.<see cref="KeyValuePair{TKey, TValue}.Key" /> is <c>null</c>.</exception>
/// <exception cref="NotSupportedException">The instance is <c>read-only</c>.</exception>
void ICollection <KeyValuePair <string, object> > .Add(KeyValuePair <string, object> item)
{
_items.Add(item);
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForAddAction(item.Key));
}
/// <summary>Raises the <see cref="DictionaryChanged" /> event.</summary>
/// <param name="eventArgs">The <see cref="NotifyDictionaryChangedEventArgs{TKey, TValue}" /> for the event.</param>
private void OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> eventArgs)
{
DictionaryChanged?.Invoke(this, eventArgs);
}
/// <summary>Adds an item to the instance.</summary>
/// <param name="key">The key of the item to add to the instance.</param>
/// <param name="value">The value of the item to add to the instance.</param>
/// <exception cref="ArgumentException">An item with the same <paramref name="key" /> already exists in the instance.</exception>
/// <exception cref="ArgumentNullException"><paramref name="key" /> is <c>null</c>.</exception>
/// <exception cref="NotSupportedException">The instance is <c>read-only</c>.</exception>
public void Add(string key, object value)
{
_items.Add(key, value);
OnDictionaryChanged(NotifyDictionaryChangedEventArgs <string, object> .ForAddAction(key));
}