Get intersection of 2 string arrays

Question

Hello. I try to get the intersection of 2 string arrays using an implementation of IEqualityComparer. But for some reason the Equals method is not executed. I put a breakpoint but the execution doesn't stop there. Do you know the reason? Thank you. I attach the code.

Answer 1

@Diego Alvarez your code is working fine for me, too. you can find evidence here: https://dotnetfiddle.net/ODIXlc

Answer 2

Hi
You need to post code in a code block (5th from left in toolbar), unless you expect people here to copy from your image and retype everything.

Anywat, can't answer your question as I can't view your code. I think it is about getting matches (or differences) in string arrays - if so, check this image out.

Answer 3

Hello LesHay-2099. Thank you for your reply. This is the code:

if (valoresCondicion.Intersect(numeroOperando.Textos, new ComparadorTextosInformacion(
                                            TipoOpcionCondicion_TextosInformacion)).Any())
                                    valorCondicion = true;




public class ComparadorTextosInformacion : IEqualityComparer<string>
    {
        public TipoOpcionImplicacion_AsignacionTextoInformacion TipoOpcionCondicion_TextosInformacion { get; set; }

        public ComparadorTextosInformacion(TipoOpcionImplicacion_AsignacionTextoInformacion tipoOpcion)
        {
            TipoOpcionCondicion_TextosInformacion = tipoOpcion;
        }
        public bool Equals(string x, string y)
        {
            switch (TipoOpcionCondicion_TextosInformacion)
            {
                case TipoOpcionImplicacion_AsignacionTextoInformacion.ContengaTexto:
                    return x.Replace("\t", string.Empty).Trim().ToLower().Contains(y.Replace("\t", string.Empty).Trim().ToLower());

                case TipoOpcionImplicacion_AsignacionTextoInformacion.EmpiecenCon:
                    return x.Replace("\t", string.Empty).Trim().ToLower().StartsWith(y.Replace("\t", string.Empty).Trim().ToLower());

                case TipoOpcionImplicacion_AsignacionTextoInformacion.TerminenCon:
                    return x.Replace("\t", string.Empty).Trim().ToLower().EndsWith(y.Replace("\t", string.Empty).Trim().ToLower());

                case TipoOpcionImplicacion_AsignacionTextoInformacion.TextoDistinto:
                case TipoOpcionImplicacion_AsignacionTextoInformacion.TextoIgual:
                    return x.Replace("\t", string.Empty).Trim().ToLower().Equals(y.Replace("\t", string.Empty).Trim().ToLower());
            }

            return false;
        }

        public int GetHashCode(string obj)
        {
            return obj.GetHashCode();
        }
    }

Answer 4

Please check the example, the comparer works fine for me, all methods are triggered: https://dotnetfiddle.net/my63GH

Answer 5

andriyb The code doesn't work for me in my VS project. Will it be a configuration?