BExIS.Web.Shell.Areas.DCM.Controllers.FormController.LoadUsage C# (CSharp) Method

        private BaseUsage LoadUsage(BaseUsage usage)
        {
            if (usage is MetadataPackageUsage)
            {
                MetadataStructureManager msm = new MetadataStructureManager();
                return msm.PackageUsageRepo.Get(usage.Id);
            }

            if (usage is MetadataNestedAttributeUsage)
            {
                MetadataAttributeManager mam = new MetadataAttributeManager();

                var x = from c in mam.MetadataCompoundAttributeRepo.Get()
                        from u in c.Self.MetadataNestedAttributeUsages
                        where u.Id == usage.Id //&& c.Id.Equals(parentId)
                        select u;

                return x.FirstOrDefault();
            }

            if (usage is MetadataAttributeUsage)
            {
                MetadataPackageManager mpm = new MetadataPackageManager();

                var q = from p in mpm.MetadataPackageRepo.Get()
                        from u in p.MetadataAttributeUsages
                        where u.Id == usage.Id // && p.Id.Equals(parentId)
                        select u;

                return q.FirstOrDefault();
            }

            return usage;
        }