EdmRelationshipAttribute Class

Reference

Definition

Namespace:: System.Data.Objects.DataClasses

Assembly:: System.Data.Entity.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Defines a relationship between two entity types based on an association in the conceptual model.

public ref class EdmRelationshipAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple=true)]
public sealed class EdmRelationshipAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple=true)>]
type EdmRelationshipAttribute = class
    inherit Attribute

Public NotInheritable Class EdmRelationshipAttribute
Inherits Attribute

Inheritance: Object

Attribute
EdmRelationshipAttribute

Attributes: AttributeUsageAttribute

Remarks

This attribute is applied at the assembly level with one instance for each association. There can be multiple attributes of this type in an assembly.

The details for the role of an entity type in a particular association should match the association defined in the conceptual schema.

An association does not define any ordering for the roles. This means that properties that define the related ends of an association can be defined in any order.

Constructors

EdmRelationshipAttribute(String, String, String, RelationshipMultiplicity, Type, String, RelationshipMultiplicity, Type, Boolean)	Initializes a new instance of the EdmRelationshipAttribute class.
EdmRelationshipAttribute(String, String, String, RelationshipMultiplicity, Type, String, RelationshipMultiplicity, Type)	Creates an instance of the EdmRelationshipAttribute class.

Properties

IsForeignKey	Gets a Boolean value that indicates whether the relationship is based on the foreign key value.
RelationshipName	Name of the relationship.
RelationshipNamespaceName	The namespace for the relationship.
Role1Multiplicity	Multiplicity at one end of the relationship.
Role1Name	Name of the role at one end of the relationship.
Role1Type	Type of the entity at one end of the relationship.
Role2Multiplicity	Multiplicity at the other end of the relationship.
Role2Name	Name of the role at the other end of the relationship.
Role2Type	Type of the entity at the other end of the relationship.
TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)	Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)	Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32)	Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)	Provides access to properties and methods exposed by an object. (Inherited from Attribute)

Applies to

इसके माध्यम से साझा किया गया