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EntityKey.Equals Method

  • Reference

Definition

Namespace:
System.Data
Assembly:
System.Data.Entity.dll

Returns a value that indicates whether this instance is equal to a specified object.

Overloads

Equals(Object)

Returns a value that indicates whether this instance is equal to a specified object.
Equals(EntityKey)

Returns a value that indicates whether this instance is equal to a specified EntityKey.

Equals(Object)

Returns a value that indicates whether this instance is equal to a specified object.

public:
 override bool Equals(System::Object ^ obj);
public override bool Equals (object obj);
override this.Equals : obj -> bool
Public Overrides Function Equals (obj As Object) As Boolean

Parameters

obj
Object

An Object to compare with this instance.

Returns

Boolean

true if this instance and obj have equal values; otherwise, false.

Remarks

Temporary keys have different comparison semantics than permanent keys:

  • Temporary keys use reference equality. That is, two references to the exact same temporary EntityKey instance are equal but no other EntityKey instances are equal.

  • Permanent keys determine equality based on the values of the contained key properties and the EntitySet. That is, you can have two separate EntityKey instances that are equal if their EntitySet objects are the same and their key values are equal.

In addition, temporary keys have no EntitySet or key values, but permanent keys do.

Applies to

Equals(EntityKey)

Returns a value that indicates whether this instance is equal to a specified EntityKey.

public:
 virtual bool Equals(System::Data::EntityKey ^ other);
public bool Equals (System.Data.EntityKey other);
override this.Equals : System.Data.EntityKey -> bool
Public Function Equals (other As EntityKey) As Boolean

Parameters

other
EntityKey

An EntityKey object to compare with this instance.

Returns

Boolean

true if this instance and other have equal values; otherwise, false.

Implements

Equals(T)

Remarks

Temporary keys have different comparison semantics than permanent keys:

  • Temporary keys use reference equality. That is, two references to the exact same temporary EntityKey instance are equal but no other EntityKey instances are equal.

  • Permanent keys determine equality based on the values of the contained key properties and the EntitySet. That is, you can have two separate EntityKey instances that are equal if their entity sets are the same and their key values are equal.

In addition, temporary keys have no EntitySet or key values, but permanent keys do.

Applies to