public TreeChangeEventArgs(
EntityTreeEventTiming enTiming,
EntityTreeChangeInfo oChangeInfo)
{
this.Timing = enTiming;
this.ChangeInfo = oChangeInfo;
}
public void PostTreeChange(EntityTreeChangeInfo oChangeInfo)
{
TreeChangeNotify(
EntityTreeEventTiming.PostChange,
oChangeInfo
);
}
private void PreTreeChange(EntityTreeChangeInfo oChangeInfo)
{
TreeChangeNotify(
EntityTreeEventTiming.PreChange,
oChangeInfo
);
}
private void FireTreeChangeEvent(
EntityTreeEventTiming enTiming,
EntityTreeChangeInfo oChangeInfo)
{
if (this.OnTreeChange != null)
{
OnTreeChange(
new TreeChangeEventArgs(enTiming, oChangeInfo)
);
}
}
public AutoTreeChangeNotify(
IEntityBase oTarget,
EntityTreeChange enChange,
IEntityBase oParentEntity,
IEntityBase oChildEntity,
EntityRelation enParentChildRelation,
object oAdditionalInfo)
{
m_oTarget = oTarget;
m_oChangeInfo = m_oTarget.PreTreeChange(
enChange,
oParentEntity,
oChildEntity,
enParentChildRelation,
oAdditionalInfo);
}
public EntityTreeChangeInfo PostTreeChange(
EntityTreeChange enChange,
IEntityBase oParentEntity,
IEntityBase oChildEntity,
EntityRelation enParentChildRelation,
object oAdditionalInfo)
{
EntityTreeChangeInfo oChangeInfo = new EntityTreeChangeInfo(
enChange,
oParentEntity,
oChildEntity,
enParentChildRelation,
oAdditionalInfo);
PostTreeChange(oChangeInfo);
return(oChangeInfo);
}
public virtual void TreeChangeNotify(
EntityTreeEventTiming enTiming,
EntityTreeChangeInfo oChangeInfo)
{
// Fire event
FireTreeChangeEvent(
enTiming,
oChangeInfo);
// Call 'Template method' event
OnTreeChangeHandler(
enTiming,
oChangeInfo);
IEntityBase oParent = OwnerParent as IEntityBase;
if (oParent != null)
{
// Notify parent
oParent.TreeChangeNotify(
enTiming,
oChangeInfo);
}
}
// May be overriden in inherited entities
protected virtual void OnTreeChangeHandler(
EntityTreeEventTiming enTiming,
EntityTreeChangeInfo oChangeInfo)
{
}