dotnet-core/release-notes/3.0/api-diff/3.0.0_System.ComponentModel.DataAnnotations.md
2019-09-23 13:07:54 -07:00

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# System.ComponentModel.DataAnnotations
``` diff
namespace System.ComponentModel.DataAnnotations {
+ public class AssociatedMetadataTypeTypeDescriptionProvider : TypeDescriptionProvider {
+ public AssociatedMetadataTypeTypeDescriptionProvider(Type type);
+ public AssociatedMetadataTypeTypeDescriptionProvider(Type type, Type associatedMetadataType);
+ public override ICustomTypeDescriptor GetTypeDescriptor(Type objectType, object instance);
+ }
+ public sealed class MetadataTypeAttribute : Attribute {
+ public MetadataTypeAttribute(Type metadataClassType);
+ public Type MetadataClassType { get; }
+ }
}
```