private void createMetadataAttribute() { //UnitManager um = new UnitManager(); //Unit km = um.Create("Kilometer", "Km", "This is the Kilometer", "Length", MeasurementSystem.Metric); DataTypeManager dtManager = new DataTypeManager(); DataType dt1 = dtManager.Repo.Get(p => p.Name.Equals("String")).FirstOrDefault(); if (dt1 == null) { dt1 = dtManager.Create("String", "A test String", System.TypeCode.String); } MetadataAttributeManager maManager = new MetadataAttributeManager(); // for unique name checks USE maManager.MetadataAttributeRepo that is searching both simple and compound attribute names var msa1 = maManager.MetadataAttributeRepo.Get(p => p.ShortName.Equals("Simple 1")).FirstOrDefault(); if (msa1 == null) { msa1 = new MetadataSimpleAttribute() { ShortName = "Simple 1", DataType = dt1, }; maManager.Create((MetadataSimpleAttribute)msa1); } var msa2 = maManager.MetadataAttributeRepo.Get(p => p.ShortName.Equals("Simple 2")).FirstOrDefault(); if (msa2 == null) { msa2 = new MetadataSimpleAttribute() { ShortName = "Simple 2", DataType = dt1, }; maManager.Create((MetadataSimpleAttribute)msa2); } MetadataCompoundAttribute mca1 = (MetadataCompoundAttribute)maManager.MetadataAttributeRepo.Get(p => p.ShortName.Equals("Compound 1")).FirstOrDefault(); if (mca1 == null) { mca1 = new MetadataCompoundAttribute() { ShortName = "Compound 1", DataType = dt1, }; MetadataNestedAttributeUsage u1 = new MetadataNestedAttributeUsage() { Label = "First member", Description = "I am a link between Compound 1 and Simple 1", MinCardinality = 0, MaxCardinality = 2, Master = mca1, Member = msa1, }; mca1.MetadataNestedAttributeUsages.Add(u1); MetadataNestedAttributeUsage u2 = new MetadataNestedAttributeUsage() { Label = "Second member", Description = "I am a link between Compound 1 and Simple 2", MinCardinality = 0, MaxCardinality = 2, Master = mca1, Member = msa2, }; mca1.MetadataNestedAttributeUsages.Add(u2); maManager.Create(mca1); } maManager.Delete(msa1); }