ForeignKeyAttribute Class
 

Denotes a property used as a foreign key in a relationship. The annotation may be placed on the foreign key property and specify the associated navigation property name, or placed on a navigation property and specify the associated foreign key name.

Namespace:   System.ComponentModel.DataAnnotations.Schema
Assembly:  System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)

SystemObject
   SystemAttribute
    System.ComponentModel.DataAnnotations.SchemaForeignKeyAttribute

[AttributeUsageAttribute(AttributeTargets.Property | AttributeTargets.Field, 
	AllowMultiple = false)]
public class ForeignKeyAttribute : Attribute
[AttributeUsageAttribute(AttributeTargets::Property | AttributeTargets::Field, 
	AllowMultiple = false)]
public ref class ForeignKeyAttribute : Attribute
[<AttributeUsageAttribute(AttributeTargets.Property | AttributeTargets.Field,
    AllowMultiple = false)>]
type ForeignKeyAttribute = 
    class
        inherit Attribute
    end
<AttributeUsageAttribute(AttributeTargets.Property Or AttributeTargets.Field,
	AllowMultiple := False)>
Public Class ForeignKeyAttribute
	Inherits Attribute
NameDescription
System_CAPS_pubmethod ForeignKeyAttribute

Initializes a new instance of the ForeignKeyAttribute class.

NameDescription
System_CAPS_pubproperty

If you add the ForeigKey attribute to a foreign key property, you should specify the name of the associated navigation property. If you add the ForeigKey attribute to a navigation property, you should specify the name of the associated foreign key(s). If a navigation property has multiple foreign keys, use comma to separate the list of foreign key names. For more information, see Code First Data Annotations.

System_CAPS_pubproperty

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

NameDescription
System_CAPS_pubmethod Equals

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_protmethod Finalize

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethod GetHashCode

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethod GetType

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod 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.)

System_CAPS_pubmethod Match

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_protmethod MemberwiseClone

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethod ToString

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetIDsOfNames

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfo

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfoCount

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeInvoke

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

Universal Windows Platform
Available since 10
.NET Framework
Available since 4.5

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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