public override bool ReturnToBookmark(Bookmark bookmark)
{
if (bookmark.data == null)
{
OrdinalPosition = null;
return true;
}
else
{
var elem = bookmark.data as Profile.ElementComponent;
if (elem == null) return false;
var index = _elements.IndexOf(elem);
if (index != -1)
{
OrdinalPosition = index;
return true;
}
else
return false;
}
}
public abstract bool ReturnToBookmark(Bookmark bookmark);
public override bool IsAtBookmark(Bookmark bookmark)
{
if (bookmark.data == null)
return OrdinalPosition == null;
var elem = bookmark.data as Profile.ElementComponent;
return this.Current == elem;
}
public abstract bool IsAtBookmark(Bookmark bookmark);
