BoC.Sitecore.Mvc.SitecoreValueProviderFactory.SitecoreValueProvider.GetValueResult C# (CSharp) Method

            private ValueProviderResult GetValueResult(Item item, string key)
            {
                if (item == null)
                    return new ValueProviderResult(null, key, CultureInfo.CurrentCulture);
                if (string.IsNullOrEmpty(key))
                {
                    return new SitecoreValueProviderResult(item, item.ID.ToString(), CultureInfo.CurrentCulture);
                }
                if ("id".Equals(key, StringComparison.InvariantCultureIgnoreCase))
                {
                    return new ValueProviderResult(item.ID.ToGuid(), item.ID.ToString(), CultureInfo.CurrentCulture);
                }
                if ("path".Equals(key, StringComparison.InvariantCultureIgnoreCase))
                {
                    return new ValueProviderResult(item.Paths.FullPath, item.Paths.FullPath, CultureInfo.CurrentCulture);
                }
                var field = item.Fields.FirstOrDefault(f => f.Name.Equals(key, StringComparison.InvariantCultureIgnoreCase));
                return field != null ? new ValueProviderResult(field.GetValue(true, true), field.GetValue(true, true), CultureInfo.CurrentCulture) : null;
            }