This questions involves 2 different implementations of essentially the same code. First, using delegate to create a Comparison method that can be used as a parameter when sorting a collection of objects: class Foo { public static Comparison<Foo> BarComparison = delegate(Foo foo1, Foo foo2) { return foo1.Bar.CompareTo(fo...
I am having difficulties to use my custom IComparer for my SortedDictionary<>. The goal is to put email addresses in a specific format ([email protected]) as the key, and sort by last name. When I do something like this: public class Program { public static void Main(string[] args) { SortedDictionary<string, string> l...
Hi all, which is the best implementation for IEqualityComparer for this class ?? The entity has 7 properties. Thanks in advanced. [Serializable()] public class ServidorSeleccionadoDto { [XmlAttribute()] public int Id { get; set; } [XmlAttribute()] public string Nombre { get; set; } [X...
I happened to have seen some code where this guy passed a lambda expression to a ArrayList.Sort(IComparer here) or a IEnumerable.SequenceEqual(IEnumerable list, IEqualityComparer here) where an IComparer or an IEqualityComparer was expected. I can't be sure if I saw it though, or I am just dreaming. And I can't seem to find an extension...
Hello All, I am attempting to create a simple program that analyzes the poker hands. Given n hands/players and the community cards (Texas hold 'em) I would like to determine the winner(s). However, my test is failing when I have two exact results - it only returns one winner. i.e The hand result contains J J 9 9 K, for both players, but...
I have a question with whether or not this is a standard for using IComparer in C#. Say I have a situation in which there are three Person objects: P1, P2, and P3. Say I call the Compare method passing in P1 and P2 and the result is 0. This essentially means the two people should be categorized as equal. Now say I call the Compare method...
I would like to know what is better to use. IComparer class and Compare method for sort or LINQ orderby on List. Both works fine but which one is better for large lists. ...
I'm implementing an int IComparer.Compare(object x, object y); from the IComparer interface. I know the objects are of type Class1, and I know one of its members is class1Instance.myDate, of type DateTime. What I want to do is something along the lines of: DateTime.Compare( (Class1)x.myDate, (Class1)y.myDate); But casting this w...