/// <summary>
/// Clear all items from data set.
/// </summary>
public void ClearAll()
{
try
{
_lock.EnterWriteLock();
_list.Clear();
CollectionEventHandler?.Invoke(this, new CollectionEventArgs <T>(null, CollectionEventTypeEnum.Cleared));
}
finally
{
_lock.ExitWriteLock();
}
}
/// <summary>
/// Add item to data set.
/// </summary>
/// <param name="item">Item.</param>
public bool AddItem(T item)
{
try
{
_lock.EnterWriteLock();
var added = _list.Add(item);
CollectionEventHandler?.Invoke(this, new CollectionEventArgs <T>(new[] { item }, added ? CollectionEventTypeEnum.Added :
CollectionEventTypeEnum.ItemIsAlreadyExisted));
return(added);
}
finally
{
_lock.ExitWriteLock();
}
}
/// <summary>
/// Remove item from data set.
/// </summary>
/// <param name="item"></param>
/// <returns>Item.</returns>
public bool RemoveItem(T item)
{
try
{
_lock.EnterWriteLock();
var removed = _list.Remove(item);
CollectionEventHandler?.Invoke(this, new CollectionEventArgs <T>(new[] { item }, removed ? CollectionEventTypeEnum.Removed :
CollectionEventTypeEnum.ItemNotFound));
return(removed);
}
finally
{
_lock.ExitWriteLock();
}
}
/// <summary>
/// Add items to data set.
/// </summary>
/// <param name="items">Items.</param>
public void AddItems(T[] items)
{
try
{
var added = new List <T>();
_lock.EnterWriteLock();
foreach (var item in items)
{
if (_list.Add(item))
{
added.Add(item);
}
}
CollectionEventHandler?.Invoke(this, new CollectionEventArgs <T>(added.ToArray(), CollectionEventTypeEnum.Added));
}
finally
{
_lock.ExitWriteLock();
}
}
private static void Raise(CollectionEventHandler <T> handler, T item) => handler?.Invoke(item);
