public async Task <IActionResult> Test()
{
CookBook.Domain.Test.TestClass obj = new Domain.Test.TestClass();
CookBook.Domain.Test.v2.Document testobj = new Domain.Test.v2.Document();
var documents = new[]
{
new CookBook.Domain.Test.v2.Document()
{
id = 1, ParentId = null, name = "fruits"
},
new CookBook.Domain.Test.v2.Document()
{
id = 2, ParentId = null, name = "vegetables"
},
new CookBook.Domain.Test.v2.Document()
{
id = 3, ParentId = 2, name = "tomatoes"
},
new CookBook.Domain.Test.v2.Document()
{
id = 4, ParentId = 1, name = "apples"
},
new CookBook.Domain.Test.v2.Document()
{
id = 5, ParentId = 4, name = "golden apples"
},
new CookBook.Domain.Test.v2.Document()
{
id = 6, ParentId = 4, name = "ared apples"
},
};
var lookup = documents.ToLookup(x => x.ParentId);
Func <int?, IEnumerable <CookBook.Domain.Test.v2.Document> > heirarchySort = null;
heirarchySort = pid =>
lookup[pid].SelectMany(x => new[] { x }.Concat(heirarchySort(x.id)));
IEnumerable <CookBook.Domain.Test.v2.Document> sorted = heirarchySort(null);
Console.WriteLine(sorted);
var A = new CookBook.Domain.Test.v3.TreeItem {
Id = 1, Name = "A", ParentId = null
};
var B = new CookBook.Domain.Test.v3.TreeItem {
Id = 22, Name = "F", ParentId = 1
};
var C = new CookBook.Domain.Test.v3.TreeItem {
Id = 33, Name = "C", ParentId = 1
};
var D = new CookBook.Domain.Test.v3.TreeItem {
Id = 4, Name = "D", ParentId = null
};
var E = new CookBook.Domain.Test.v3.TreeItem {
Id = 5, Name = "E", ParentId = 4
};
// populate children for the example.
// My actual code is automatic thanks to EF Inverse Relationship.
A.Children = new List <CookBook.Domain.Test.v3.TreeItem> {
B, C
};
D.Children = new List <CookBook.Domain.Test.v3.TreeItem> {
E
};
var listToSortHierarchically = new List <CookBook.Domain.Test.v3.TreeItem> {
D, C, B, E, A
};
//listToSortHierarchically.Remove(A);
// I want the result of the hierarchical sort to be A B C D E
//var orderedList = listToSortHierarchically.Ordered<CookBook.Domain.Test.v3.TreeItem>().ToList();
var orderedList1 = TreeItemExtension.SortedList(listToSortHierarchically).ToList();
/*var ordered = listToSortHierarchically.OrderBy(x => x.Name).ToList();
* ordered.ForEach(TreeItemExtension.OrderChildren);*/
var qq = orderedList1.Find(x => x.Id == 33);
return(Ok(orderedList1));
}