private void DispatchChange(NotifyDictionaryChangedEventArgs <TKey, TValue> args)
{
if (CollectionChanged != null)
{
CollectionChanged(this, args);
}
}
internal void Add(TKey key, TValue value)
{
this.dictionary.Add(key, value);
var dictArgs = new NotifyDictionaryChangedEventArgs <TKey, TValue> {
Action = NotifyCollectionChangedAction.Add, NewItem = value, Key = key
};
DispatchChange(dictArgs);
}
internal bool Remove(TKey key)
{
TValue value = this.dictionary.ContainsKey(key) ? this.dictionary[key] : default(TValue);
bool removed = this.dictionary.Remove(key);
var dictArgs = new NotifyDictionaryChangedEventArgs <TKey, TValue> {
Action = NotifyCollectionChangedAction.Remove, OldItem = value, Key = key
};
DispatchChange(dictArgs);
return(removed);
}
internal void Clear()
{
foreach (TKey key in this.dictionary.Keys)
{
TValue value = this.dictionary[key];
var dictArgs = new NotifyDictionaryChangedEventArgs <TKey, TValue> {
Action = NotifyCollectionChangedAction.Remove, OldItem = value
};
DispatchChange(dictArgs);
}
this.dictionary.Clear();
}
public TValue this[TKey key]
{
get
{
return(this.dictionary[key]);
}
internal set
{
TValue oldValue = this.dictionary.ContainsKey(key) ? this.dictionary[key] : default(TValue);
this.dictionary[key] = value;
var dictArgs = new NotifyDictionaryChangedEventArgs <TKey, TValue> {
Action = NotifyCollectionChangedAction.Replace, OldItem = oldValue, NewItem = value, Key = key
};
DispatchChange(dictArgs);
}
}