question

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.

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();
         }
     }

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

@DiegoAlvarez-3139 your code is working fine for me, too. you can find evidence here: https://dotnetfiddle.net/ODIXlc

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

@DiegoAlvarez-3139 I provided you with two snippets, see the urls to DotNetFiddle, the second one contains the comparer created by you and I see it works properly.
If it doesn't work for you please share more code, explain the way of how did you check the solution and I hope I will help you to get the code working on your side.

andriyb, there is no more related code.

Thank you but I did the method manually and it works for me.