Dynamics 365单项选项集&多项选项集

        ///多选选项集&OptionSetValueCollection
        ///处理只需要使用foreach循环遍历OptionSetValueCollection即可
        /// <summary>
        /// 获取选项集的Label
        /// </summary>
        /// <param name="entityName"></param>
        /// <param name="fieldName"></param>
        /// <param name="optionSetValue"></param>
        /// <returns></returns>
        public static string GetOptionSetValueLabel(string entityName, string fieldName, int optionSetValue, IOrganizationService serviceAdmin)
        {
            var attReq = new RetrieveAttributeRequest();
            attReq.EntityLogicalName = entityName;
            attReq.LogicalName = fieldName;
            attReq.RetrieveAsIfPublished = true;

            var attResponse = (RetrieveAttributeResponse)serviceAdmin.Execute(attReq);
            var attMetadata = (EnumAttributeMetadata)attResponse.AttributeMetadata;

            return attMetadata.OptionSet.Options.Where(x => x.Value == optionSetValue).FirstOrDefault().Label.UserLocalizedLabel.Label;
        }

        /// <summary>
        /// 获取选项集的value
        /// </summary>
        /// <param name="entityName"></param>
        /// <param name="fieldName"></param>
        /// <param name="optionSetValue"></param>
        /// <returns></returns>

        public static int GetOptionSetValueLabel(string entityName, string fieldName, string optionSetLabel, IOrganizationService serviceAdmin)
        {
            
            var attReq = new RetrieveAttributeRequest();
            attReq.EntityLogicalName = entityName;
            attReq.LogicalName = fieldName;
            attReq.RetrieveAsIfPublished = true;

            var attResponse = (RetrieveAttributeResponse)serviceAdmin.Execute(attReq);
            var attMetadata = (EnumAttributeMetadata)attResponse.AttributeMetadata;

            return attMetadata.OptionSet.Options.Where(x => x.Label.UserLocalizedLabel.Label.Equals(optionSetLabel)).FirstOrDefault().Value.Value;
        }