public QueryResultDependency(string key)
{
this.key = key;
if (handler == null)
{
handler = new CachedQueryChangedDelegate(QueryBroker_CachedQueryChanged);
QueryBroker.CachedQueryChanged += handler;
}
}
protected override void DependencyDispose()
{
this.key = null;
if (handler != null)
{
QueryBroker.CachedQueryChanged -= handler;
handler = null;
}
base.DependencyDispose();
}
