public SiteMapItem(ParentFunc parentFunc, ChildrenFunc childrenFunc, ConverterFunc converterFunc, DB db)
{
_childrenDelegate = childrenFunc;
_parentDelegate = parentFunc;
_converterDelegate = converterFunc;
_db = db;
}
public SiteMapItem(SiteMapItem parent)
{
_childrenDelegate = parent._childrenDelegate;
_parentDelegate = parent._parentDelegate;
_converterDelegate = parent._converterDelegate;
_db = parent._db;
}
private static IEnumerable <TreeNode <T> > Flatten <T>(this T node, ChildrenFunc <T> childrenFunc, ITreeNode <T> parent)
{
if (node == null)
{
return(Enumerable.Empty <TreeNode <T> >());
}
var treeNode = new TreeNode <T>(node, parent);
return(treeNode.Yield().Concat(childrenFunc(node).SelectMany(child => child.Flatten(childrenFunc, treeNode))));
}
public static IEnumerable <ITreeNode <T> > Flatten <T>(this T node, ChildrenFunc <T> childrenFunc, SelfFunc <T> selfFunc)
{
return(selfFunc(node).Flatten(childrenFunc, default, selfFunc).Select((treeNode, i) => (ITreeNode <T>)treeNode.UpdateIndex(i)));