public ConstraintEnforcementCollectionCallbacks(PotentialCollectionModificationCallback <TClass, TProperty> adding, CommittedCollectionModificationCallback <TClass, TProperty> added, PotentialCollectionModificationCallback <TClass, TProperty> removing, CommittedCollectionModificationCallback <TClass, TProperty> removed)
{
this.Adding = adding;
this.Added = added;
this.Removing = removing;
this.Removed = removed;
}
public void Add(TProperty item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
TClass instance = this._Instance;
ConstraintEnforcementCollectionCallbacks <TClass, TProperty> callbacks = instance.Context.GetConstraintEnforcementCollectionCallbacks <TClass, TProperty>();
PotentialCollectionModificationCallback <TClass, TProperty> adding = callbacks.Adding;
if ((object)adding == null || adding(instance, item))
{
this._List.Add(item);
CommittedCollectionModificationCallback <TClass, TProperty> added = callbacks.Added;
if ((object)added != null)
{
added(instance, item);
}
}
}
public bool Remove(TProperty item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
TClass instance = this._Instance;
ConstraintEnforcementCollectionCallbacks <TClass, TProperty> callbacks = instance.Context.GetConstraintEnforcementCollectionCallbacks <TClass, TProperty>();
PotentialCollectionModificationCallback <TClass, TProperty> removing = callbacks.Removing;
if ((object)removing == null || removing(instance, item))
{
if (this._List.Remove(item))
{
CommittedCollectionModificationCallback <TClass, TProperty> removed = callbacks.Removed;
if ((object)removed != null)
{
removed(instance, item);
}
return(true);
}
}
return(false);
}
