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General Tech Technology & Software 2 years ago
Posted on 16 Aug 2022, this text provides information on Technology & Software related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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tengo una tabla llamada Technologys y cada Technology puede tener una o mas resolutions. Lo que quiero hacer es que se muestren todas las resoluciones que tiene una tecnologia en un mismo campo.
Ejemplo
Tabla de tecnologias Nombre Descripcion Resoluciones 1 prueba 140,33,32
Necesito hacerlo con linq y me han dicho que la clave esta en un String Join o en un Agregate usando dos querys pero no puedo conseguirlo.
Este es mi codigo:
var Technology1 = (from tTechnology in Context.Technology join tUsers in Context.Users on tTechnology.EnableBy equals tUsers.UserId into collection from subCase in collection.DefaultIfEmpty() join tUsers2 in Context.Users on tTechnology.LastChangeBy equals tUsers2.UserId into collection2 from subCase2 in collection2.DefaultIfEmpty() join tUsers3 in Context.Users on tTechnology.DisableBy equals tUsers3.UserId into collection3 from subCase3 in collection3.DefaultIfEmpty() join tResolution in Context.Resolution on tTechnology.TechnologyId equals tResolution.TechnologyId into collection4 from subCase4 in collection4.DefaultIfEmpty() where tTechnology.DisableDate == null //orderby select new { tTechnologyTechnologyId = tTechnology.TechnologyId, tTechnologyName = tTechnology.Name, tTechnologyDescription = tTechnology.Description, tCityName = tTechnology.City.Name, tStateName = tTechnology.City.State.Name, tCountryName = tTechnology.City.State.Country.Name, tResolutions = (from tR in Context.Resolution where tR.TechnologyId == tTechnology.TechnologyId select tR.Measure ), tEnableBy = (subCase.Name == null ? null : subCase.Name) + "" + (subCase.FirstLastName == null ? null : subCase.FirstLastName) + " " + (subCase.SecondLastName == REPLY 0 views 0 likes 0 shares Facebook Twitter Linked In WhatsApp
Deberias usar tTec para acceder a las propiedades
tTec
var Technology = (from tTec in Technology1 select new { tTechnologyTechnologyId = tTec.tTechnologyTechnologyId, tTechnologyName = tTec.tTechnologyName, tTechnologyDescription = tTec.tTechnologyDescription, tCityName = tTec.tCityName, tStateName = tTec.tStateName, tCountryName = tTec.tCountryName, tResolutions = String.Join(",", tTec.tResolutions), });
Al ser la propiedad Measure del tipo long deberias convertirla en string en la primer query linq
Measure
tResolutions = (from tR in Context.Resolution where tR.TechnologyId == tTechnology.TechnologyId select tR.Measure.ToString() ).ToArray(),
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