using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.Serialization;
using System.ServiceModel;
using Microsoft.Xrm.Client;
using Microsoft.Xrm.Portal;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Metadata;

namespace ClassLibrary2
{
    public class Class1 : IPlugin
    {
        public void Execute(IServiceProvider serviceProvider)
        {
            IPluginExecutionContext context = (IPluginExecutionContext)
            serviceProvider.GetService(typeof(IPluginExecutionContext));
            IOrganizationServiceFactory serviceFactory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));
            IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);

            // Retrive All Vlaue From Single Record on which pluging is fired
             new_teston test = (new_teston)service.Retrieve(new_teston.EntityLogicalName, context.PrimaryEntityId, new ColumnSet(true));

            // “s” Contain OptionSet Value ( s = 1 , 2 , 3 , …)
             int s = Convert.ToInt32(((OptionSetValue)test.Attributes[“new_optionset”]).Value);

            // Function For Retriving OptionSet Label Through Value of “s”
             string ss = GetPickListText(new_teston.EntityLogicalName, “new_optionset”, s, service);

             new_testto tes = new new_testto();
             tes.new_name = ss;

            service.Create(tes);
        }

        public string GetPickListText(string entityName, string attributeName, int optionSetValue, IOrganizationService service)
         {
             string AttributeName = attributeName;
             string EntityLogicalName = entityName;

            RetrieveEntityRequest retrieveDetails = new RetrieveEntityRequest();
            retrieveDetails.EntityFilters = EntityFilters.All;
            retrieveDetails.LogicalName = EntityLogicalName;

            RetrieveEntityResponse retrieveEntityResponseObj = (RetrieveEntityResponse)service.Execute(retrieveDetails);
             EntityMetadata metadata = retrieveEntityResponseObj.EntityMetadata;

            PicklistAttributeMetadata picklistMetadata = metadata.Attributes.FirstOrDefault(attribute => String.Equals(attribute.LogicalName, attributeName, StringComparison.OrdinalIgnoreCase)) as PicklistAttributeMetadata;

            OptionSetMetadata options = picklistMetadata.OptionSet;
             IList<OptionMetadata> picklistOption = (from o in options.Options where o.Value.Value == optionSetValue select o).ToList();
             string picklistLabel = (picklistOption.First()).Label.UserLocalizedLabel.Label;

             return picklistLabel;

        }

     }

}

SOURCE : JUST2CODE.IN
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The post Get Optionset Value and Lable Using Plugin (OptionSet Label / text ) In MSCRM 2011 , 2013 appeared first on Microsoft Dynamics 365 Blog.