private void UnregisterMetaDataEvents(bool updateListeners)
{
DataTable table = _table;
_table = null;
if (table != null)
{
CollectionChangeEventHandler handlerCollection = new CollectionChangeEventHandler(ColumnCollectionChanged);
table.Columns.ColumnPropertyChanged -= handlerCollection;
table.Columns.CollectionChanged -= handlerCollection;
CollectionChangeEventHandler handlerChildRelation = new CollectionChangeEventHandler(ChildRelationCollectionChanged);
((DataRelationCollection.DataTableRelationCollection)(table.ChildRelations)).RelationPropertyChanged -= handlerChildRelation;
table.ChildRelations.CollectionChanged -= handlerChildRelation;
CollectionChangeEventHandler handlerParentRelation = new CollectionChangeEventHandler(ParentRelationCollectionChanged);
((DataRelationCollection.DataTableRelationCollection)(table.ParentRelations)).RelationPropertyChanged -= handlerParentRelation;
table.ParentRelations.CollectionChanged -= handlerParentRelation;
if (updateListeners)
{
List <DataViewListener> listeners = table.GetListeners();
lock (listeners)
{
listeners.Remove(this);
}
}
}
}
private void RegisterListener(DataTable table)
{
List <DataViewListener> listeners = table.GetListeners();
lock (listeners) {
for (int i = listeners.Count - 1; 0 <= i; --i)
{
DataViewListener listener = listeners[i];
if (!listener._dvWeak.IsAlive)
{
listeners.RemoveAt(i);
listener.CleanUp(false);
}
}
listeners.Add(this);
}
}
private void RegisterListener(DataTable table) {
List<DataViewListener> listeners = table.GetListeners();
lock (listeners) {
for (int i = listeners.Count - 1; 0 <= i; --i) {
DataViewListener listener = listeners[i];
if (!listener._dvWeak.IsAlive) {
listeners.RemoveAt(i);
listener.CleanUp(false);
}
}
listeners.Add(this);
}
}
