Retrieve OptionSet Text in CRM 2011 using C# in Plugin

Retrieve Normal(Local) Option Set Text


// Get Normal option set Text
string optionsetText = entity.FormattedValues["new_optionset"];

or

string optionsetText = entity.GetFormattedAttributeValue("new_optionset");

Retrieve Global Option Set Text

int OptionsetValue = ((Microsoft.Xrm.Sdk.OptionSetValue)entity["new_localoptionset"]).Value;
string GlobaloptionsetText= GetOptionsetText(entity, service, "new_globaloptionset", OptionsetValue );



   // Retrieves Global Option set Selected Text
        // Parameters: 1. Entity Name   2. Service  3. Global Option Set Name   4. optionset selected value
        public string GetOptionsetText(Entity entity, IOrganizationService service,string  optionsetName,int optionsetValue)
        {
            string optionsetSelectedText = string.Empty;
            try
            {


                RetrieveOptionSetRequest retrieveOptionSetRequest =
                    new RetrieveOptionSetRequest
                    {
                        Name = optionsetName
                    };

                // Execute the request.
                RetrieveOptionSetResponse retrieveOptionSetResponse =
                    (RetrieveOptionSetResponse)service.Execute(retrieveOptionSetRequest);

                // Access the retrieved OptionSetMetadata.
                OptionSetMetadata retrievedOptionSetMetadata = (OptionSetMetadata)retrieveOptionSetResponse.OptionSetMetadata;

                // Get the current options list for the retrieved attribute.
                OptionMetadata[] optionList = retrievedOptionSetMetadata.Options.ToArray();
                foreach (OptionMetadata optionMetadata in optionList)
                {
                    if (optionMetadata.Value == optionsetValue)
                    {
                        optionsetSelectedText = optionMetadata.Label.UserLocalizedLabel.Label.ToString();
break;
                    }
                }
            }
            catch (Exception)
            {


                throw;
            }
            return optionsetSelectedText;
        }