/// <summary>
/// Use in place of CollectionChanged Adder
/// </summary>
/// <param name="objTag">Tag to associate with added delegate</param>
/// <param name="funcDelegateToAdd">Delegate to add to CollectionChanged</param>
/// <returns>True if delegate was successfully added, false if a delegate already exists with the associated tag.</returns>
public async ValueTask <bool> AddTaggedCollectionChangedAsync(object objTag, NotifyCollectionChangedEventHandler funcDelegateToAdd)
{
IAsyncDisposable objLocker = await LockObject.EnterWriteLockAsync();
try
{
(bool blnSuccess, HashSet <NotifyCollectionChangedEventHandler> setFuncs)
= await _dicTaggedAddedDelegates.TryGetValueAsync(objTag);
if (!blnSuccess)
{
setFuncs = new HashSet <NotifyCollectionChangedEventHandler>();
await _dicTaggedAddedDelegates.AddAsync(objTag, setFuncs);
}
if (setFuncs.Add(funcDelegateToAdd))
{
base.CollectionChanged += funcDelegateToAdd;
return(true);
}
}
finally
{
await objLocker.DisposeAsync();
}
Utils.BreakIfDebug();
return(false);
}
