protected override void OnContentChanged(object oldContent, object newContent)
{
try
{
if (oldContent != null)
{
if (oldContent is IAliasAnswerer)
{
__register.unregisterComponent((IAliasAnswerer)oldContent);
}
else if (oldContent is IAliasesContainer)
{
IAliasesContainer cont = (IAliasesContainer)oldContent;
foreach (IAliasAnswerer ans in cont.getAllComponents())
{
__register.unregisterComponent(ans);
}
}
}
}
catch (Exception e)
{
}
try
{
if (newContent != null)
{
if (newContent is IAliasAnswerer)
{
__register.registerComponent((IAliasAnswerer)newContent);
}
else if (newContent is IAliasesContainer)
{
IAliasesContainer cont = (IAliasesContainer)newContent;
foreach (IAliasAnswerer ans in cont.getAllComponents())
{
__register.registerComponent(ans);
}
}
}
}
catch (Exception e)
{
}
base.OnContentChanged(oldContent, newContent);
}
public static void aliasChanged(DependencyObject o, DependencyPropertyChangedEventArgs args)
{
try
{
FrameworkElement element = (FrameworkElement)o;
IAliasesContainer parent = (IAliasesContainer)element.Parent;
IAliasAnswerer thisAnswerer = (IAliasAnswerer)o;
parent.notifyAliasRemove((string)args.OldValue, thisAnswerer);
parent.notifyAliasAdd((string)args.NewValue, thisAnswerer);
}
catch (Exception ex)
{
}
}
