// Token: 0x06007736 RID: 30518 RVA: 0x00221098 File Offset: 0x0021F298
private void UnHookNotifications()
{
if (base.IsDynamic && this.ContextNode != null)
{
XmlDocument xmlDocument = this.DocumentFor(this.ContextNode);
if (xmlDocument != null)
{
XmlNodeChangedEventManager.RemoveHandler(xmlDocument, new EventHandler <XmlNodeChangedEventArgs>(this.OnXmlNodeChanged));
}
}
}
// We hook up only one set of event listeners per document and propagate
// events to our worker instances. This is a perf savings because we use
// a doubly-linked to add/remove workers, whereas delegate add/remove
// is linear and doesn't scale well for high number of binding workers.
private void HookNotifications()
{
//Hook Xml Node Change Notifications for one way
//and two way binding
if (IsDynamic)
{
// Check the node on which we would run XPath queries.
// We can only hook if there is a node.
if (ContextNode != null)
{
XmlDocument doc = DocumentFor(ContextNode);
if (doc != null)
{
XmlNodeChangedEventManager.AddHandler(doc, OnXmlNodeChanged);
}
}
}
}
// see comment on HookNotifications()
private void UnHookNotifications()
{
//Hook Xml Node Change Notifications for one way
//and two way binding
if (IsDynamic)
{
//this worker might not be hooked, either because
//the query is empty or because of an invalid query.
//Only unhook if we were hooked in the first place.
if (ContextNode != null)
{
XmlDocument doc = DocumentFor(ContextNode);
if (doc != null)
{
XmlNodeChangedEventManager.RemoveHandler(doc, OnXmlNodeChanged);
}
}
}
}
