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System.Data.Metadata.Edm Namespace
Visual Studio 2008
The System.Data.Metadata.Edm namespace contains a set of types that represent concepts throughout the models used by the Entity Framework and a set of classes that help applications to work with metadata.
For more information about how to use this namespace, see ADO.NET Metadata.
| Class | Description | |
|---|---|---|
![]() | AssociationEndMember | Represents the End of association in the Entity Data Model (EDM). |
![]() | AssociationSet | Represents an association set in the Entity Data Model (EDM). |
![]() | AssociationSetEnd | Represents the End of the association set in the Entity Data Model (EDM). |
![]() | AssociationType | Represents an association in the Entity Data Model (EDM). |
![]() | CollectionType | Represents a collection of instances of a specific type. You cannot define a CollectionType in the Entity Data Model (EDM) schema explicitly. |
![]() | ComplexType | Represents a complex type in the Entity Data Model (EDM). |
![]() | Documentation | Represents the documentation associated with an Entity Data Model (EDM) construct. |
![]() | EdmError | Encapsulates the error information for a generic Entity Data Model (EDM) error. |
![]() | EdmFunction | Represents information about the functions that may be invoked from the queries written by the Entity SQL query language. These may be the built-in functions exposed by the storage provider or user-defined functions in a particular database. |
![]() | EdmItemCollection | Loads metadata about the conceptual model. The EdmItemCollection loads metadata from conceptual schema definition language (CSDL) files. This class is derived from the ItemCollection class. |
![]() | EdmMember | Represents a member that can be declared in any StructuralType. |
![]() | EdmProperty | Represents a property for the EntityType in the Entity Data Model (EDM) schemas. An EdmProperty class derives from the EdmMember class and provides the Default and the Nullable facets for the type of this EdmProperty. |
![]() | EdmSchemaError | Encapsulates the detailed information about an Entity Data Model (EDM) schema error. |
![]() | EdmType | Represents a base class for all the types in the Entity Data Model (EDM). |
![]() | EntityContainer | Represents an entity container in the Entity Data Model (EDM). An EntityContainer is a logical grouping of entity sets and association sets. |
![]() | EntitySet | Represents an entity set in the Entity Data Model (EDM). An EntitySet for an EntityType contains instances of the EntityType or any of its subtypes. More than one EntitySet can be defined by using the same EntityType. |
![]() | EntitySetBase | A base class for an EntitySet and a RelationshipSet. |
![]() | EntityType | Represents a particular type of data, such as a customer entity or an order entity in the Entity Data Model (EDM). |
![]() | EntityTypeBase | A base type for EntityType and RelationshipType. |
![]() | Facet | Provides additional information about members. In the ADO.NET metadata type hierarchy, facets provide additional information about members through the declared type for the member. |
![]() | FacetDescription | Specifies a description of the facet. |
![]() | FunctionParameter | Describes the parameters of an EdmFunction. |
![]() | GlobalItem | Represents the base item class for all the Entity Data Model (EDM) types and the entity containers. |
![]() | ItemCollection | A base class for ObjectItemCollection, EdmItemCollection, and StorageMappingItemCollection classes. An ItemCollection class is an abstract class and provides the core API for loading and holding the in-memory metadata. This class is derived from the ReadOnlyMetadataCollection(Of T) class. |
![]() | MetadataItem | Represents the base item class for all the metadata in the ADO.NET metadata type hierarchy. |
![]() | MetadataProperty | Represents a metadata attribute for an item in the ADO.NET metadata hierarchy. |
![]() | MetadataWorkspace | Represents the ADO.NET metadata runtime service component that provides support for retrieving metadata from various sources. |
![]() | NavigationProperty | Represents the navigation from one entity type to another entity type in the Entity Data Model (EDM). |
![]() | ObjectItemCollection | Loads metadata about the object data model. This class is derived from the ItemCollection class. |
![]() | PrimitiveType | Describes the .NET Framework primitive types, Entity Data Model (EDM) primitive types, and storage provider-specific primitive types. |
![]() | ReadOnlyMetadataCollection(Of T) | Represents a collection of members in the ADO.NET metadata hierarchy by providing a read-only collection with advanced lookup capabilities. This class is derived from the ReadOnlyCollection class. |
![]() | ReferentialConstraint | Describes the referential constraints on the relationships in the Entity Data Model (EDM). |
![]() | RefType | Provides the address of an entity for operations that use the entity. You cannot define a RefType in the Entity Data Model (EDM) schema explicitly. |
![]() | RelationshipEndMember | Defines the End member for the RelationshipType. |
![]() | RelationshipSet | Represents a relationship set in the Entity Data Model (EDM). |
![]() | RelationshipType | Represents the base class for relationships in the Entity Data Model (EDM). |
![]() | RowType | Describes a row, such as the result of a query. This class is derived from the StructuralType class. The structure of the row type depends on what database columns are projected in the query. You cannot define a RowType in the Entity Data Model (EDM) schema explicitly. |
![]() | SimpleType | A base class that describes primitive types in the Entity Data Model (EDM). |
![]() | StoreItemCollection | Loads metadata about the storage (database) model. The StoreItemCollection loads metadata from store schema definition language (SSDL) files. This class is derived from the ItemCollection class. |
![]() | StructuralType | A base type for all the types in the Entity Data Model (EDM) that have members. |
![]() | TypeUsage | Describes a type and a set of facets for that type. |
| Structure | Description | |
|---|---|---|
![]() | ReadOnlyMetadataCollection(Of T).Enumerator | Supports a simple iteration over the ReadOnlyMetadataCollection(Of T) collection. |
| Enumeration | Description | |
|---|---|---|
![]() | BuiltInTypeKind | Represents an enumeration that specifies the list of all built-in types in the Entity Data Model (EDM). |
![]() | CollectionKind | Represents an enumeration that specifies the kind of the collection that is applied to the properties in the conceptual schema definition language (CSDL) files. You can apply this to the properties of any type. |
![]() | ConcurrencyMode | Specifies the concurrency options for the properties in the Entity Data Model (EDM). |
![]() | DataSpace | Specifies the default names for the models in the Entity Framework. |
![]() | EdmSchemaErrorSeverity | Specifies the severity level of the error. |
![]() | OperationAction | Specifies the list of possible actions when the parent End of the RelationshipType is deleted. |
![]() | ParameterMode | Specifies the direction of a parameter. |
![]() | ParameterTypeSemantics | Specifies the type semantics that are used to resolve the function overloads. Each store provider must use these enumeration flags in the provider manifest file for every function definition. |
![]() | PrimitiveTypeKind | Specifies the kinds of all primitive types defined by the Entity Data Model (EDM). |
![]() | PropertyKind | Specifies the kinds of item attributes in the Entity Data Model (EDM). |
![]() | RelationshipMultiplicity | Represents the multiplicity information about the End of a relationship type. |
![]() | StoreGeneratedPattern | Represents an enumeration that specifies three options indicating whether the column in the store schema definition language (SSDL) (.ssdl) needs a value during insert and update operations. ADO.NET reads the value of the column and then stores it in-memory cache. |
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