NettetIf instead the query uses Select to obtain the orders, the collection of collections of orders is not combined and the result is of type IEnumerable> in C# or … Nettet19. apr. 2024 · There are many possible names for this monad: list, sequence, collection, iterator, etcetera. I've arbitrarily chosen to mostly use list . SelectMany # In the introduction to monads you learned that monads are characterised by having either a join (or flatten) function, or a bind function.
[Solved] Flatten a C# Dictionary of Lists with Linq 9to5Answer
Nettet15. sep. 2024 · LINQ queries make it easy to transform data between in-memory data structures, SQL databases, ADO.NET Datasets and XML streams or documents. The following example transforms objects in an in-memory data structure into XML elements. C# class XMLTransform { static void Main() { // Create the data source by using a … NettetSelectMany is the easiest way to flatten things: Dictionary.Values.SelectMany (x => x).ToList () porges 29519 score:11 as a query var flattened = from p in dictionary from s in p.Value select s; or as methods... var flattened = dictionary.SelectMany (p => p.Value); forecast financial modelling edinburgh
C# LINQ SelectMany - flattening sequences into a single sequence
Nettet17. sep. 2024 · # Use a List Comprehension to Flatten a List of Lists list_of_lists = [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ]] flat_list = [item for sublist in list_of_lists for item in sublist] … Nettet31. aug. 2015 · public IList GetLayers () { IList data = Db.GetLayers (); IList hierarcy = new List (); foreach (var layer in data) { var sublayers = data.Where (i => i.ParentId == layer.Id && i.ParentId != 0); if (sublayers.Any ()) { hierarcy.Add (layer); } foreach (var sublayer in sublayers) { layer.ChildLayers.Add (sublayer); } } return hierarcy; } … Nettet1. Using String.Join () method The recommended solution is to use the String.Join () method of the string class, which joins elements of the specified array or collection together with the specified delimiter. Download Run Code 2. Using Enumerable.Aggregate () … forecast financial report