C# Microsoft.AspNetCore.OData-自定义批注$metadata

在Edm模型生成过程中，是否有方法向$metadata添加复杂的自定义注释

示例（下面的XML由.NET自动生成）：

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。。。但找不到添加“复杂”注释类型的方法

谢谢你的帮助

EdmModel model = new EdmModel();

// Entity Type
EdmEntityType person = new EdmEntityType("NS", "Person");
model.AddElement(person);

// EntityContainer
EdmEntityContainer container = new EdmEntityContainer("NS", "Default");
EdmEntitySet persons = container.AddEntitySet("Persons", person);
model.AddElement(container);

// Complex Type
EdmComplexType dataField = new EdmComplexType("UI", "DataField");
dataField.AddStructuralProperty("Value", EdmCoreModel.Instance.GetAnnotationPath(true));
model.AddElement(dataField);

// Term Type
EdmTerm term = new EdmTerm("UI", "LineItem", new EdmComplexTypeReference(dataField, true));
model.AddElement(term);

EdmRecordExpression record = new EdmRecordExpression(new EdmPropertyConstructor("Value", new EdmPathExpression("Name")));
EdmVocabularyAnnotation annotation = new EdmVocabularyAnnotation(persons, term, record);
annotation.SetSerializationLocation(model, EdmVocabularyAnnotationSerializationLocation.Inline); // no necessary
model.SetVocabularyAnnotation(annotation);

然后，您可以调用“CsdlWriter.TryWriteCsdl”来编写CSDL并验证为：



EdmModel model = new EdmModel();

// Entity Type
EdmEntityType person = new EdmEntityType("NS", "Person");
model.AddElement(person);

// EntityContainer
EdmEntityContainer container = new EdmEntityContainer("NS", "Default");
EdmEntitySet persons = container.AddEntitySet("Persons", person);
model.AddElement(container);

// Complex Type
EdmComplexType dataField = new EdmComplexType("UI", "DataField");
dataField.AddStructuralProperty("Value", EdmCoreModel.Instance.GetAnnotationPath(true));
model.AddElement(dataField);

// Term Type
EdmTerm term = new EdmTerm("UI", "LineItem", new EdmComplexTypeReference(dataField, true));
model.AddElement(term);

EdmRecordExpression record = new EdmRecordExpression(new EdmPropertyConstructor("Value", new EdmPathExpression("Name")));
EdmVocabularyAnnotation annotation = new EdmVocabularyAnnotation(persons, term, record);
annotation.SetSerializationLocation(model, EdmVocabularyAnnotationSerializationLocation.Inline); // no necessary
model.SetVocabularyAnnotation(annotation);