AssociatedMetadataProvider Class
Provides an abstract class to implement a metadata provider.
System.Web.ModelBinding.ModelMetadataProvider
System.Web.ModelBinding.AssociatedMetadataProvider
System.Web.ModelBinding.DataAnnotationsModelMetadataProvider
System.Web.ModelBinding.EmptyModelMetadataProvider
Assembly: System.Web (in System.Web.dll)
The AssociatedMetadataProvider type exposes the following members.
| Name | Description | |
|---|---|---|
 | AssociatedMetadataProvider | When overridden in a derived class, initializes a new instance of the class that derives from the AssociatedMetadataProvider class. |
| Name | Description | |
|---|---|---|
| CreateMetadata | When overridden in a derived class, creates metadata for a model. |
| Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| FilterAttributes | Enables derived classes to filter the list of attributes. |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetMetadataForProperties | When overridden in a derived class, returns metadata for all properties. (Overrides ModelMetadataProvider.GetMetadataForProperties(Object, Type).) |
| GetMetadataForProperty(Func<Object>, Type, PropertyDescriptor) | When overridden in a derived class, returns metadata for a property specified by a property descriptor object. |
| GetMetadataForProperty(Func<Object>, Type, String) | When overridden in a derived class, returns metadata for a property specified by a property name. (Overrides ModelMetadataProvider.GetMetadataForProperty(Func<Object>, Type, String).) |
| GetMetadataForType | When overridden in a derived class, returns metadata for the model type. (Overrides ModelMetadataProvider.GetMetadataForType(Func<Object>, Type).) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GetTypeDescriptor | When overridden in a derived class, returns a descriptor object for a specified type. |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
A metadata provider provides metadata for a model. Metadata providers must derive from ModelMetadataProvider. You can inherit from this class if you want to use a custom validator or a third-party validator that uses attribute-based metadata.
This class implements the abstract methods of the ModelMetadataProvider class and contains additional abstract methods. When you implement this class, use the AssociatedValidatorProvider class to implement the validator.
Model provider classes and validator provider classes are loosely coupled. Therefore, they work independently and have no dependencies on each other.
However, the metadata provider exposes metadata that can be accessed and used by validation providers. For example, the default metadata provider (the DataAnnotationsModelMetadataProvider class) reads the display name of an object. This display name is used by the DataAnnotationsModelValidatorProvider validation provider when it creates a validation error message.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
