# Vector.Equality(Vector, Vector)Vector.Equality(Vector, Vector)Vector.Equality(Vector, Vector)Vector.Equality(Vector, Vector) Operator

## Définition

Compare l'égalité de deux vecteurs.Compares two vectors for equality.

``````public:
static bool operator ==(System::Windows::Vector vector1, System::Windows::Vector vector2);``````
``public static bool operator == (System.Windows.Vector vector1, System.Windows.Vector vector2);``
``static member ( = ) : System.Windows.Vector * System.Windows.Vector -> bool``
``Public Shared Operator == (vector1 As Vector, vector2 As Vector) As Boolean``

#### Paramètres

vector1
Vector Vector Vector Vector

Premier vecteur à comparer.The first vector to compare.

vector2
Vector Vector Vector Vector

Deuxième vecteur à comparer.The second vector to compare.

#### Retours

`true` si les composants X et Y de `vector1` et `vector2` sont égaux ; sinon, `false`.`true` if the X and Y components of `vector1` and `vector2` are equal; otherwise, `false`.

## Exemples

L’exemple suivant montre comment utiliser cet opérateur (= =) pour vérifier si deux Vector structures sont égales.The following example shows how to use this operator (==) to check whether two Vector structures are equal.

``````private Boolean overloadedEqualityOperatorExample()
{
Vector vector1 = new Vector(20, 30);
Vector vector2 = new Vector(45, 70);

// If the two vectors are equal, areEqual is True,
// otherwise it is False. In this example it is False.
Boolean areEqual = (vector1 == vector2);

return areEqual;

}
``````
``````Private Function overloadedEqualityOperatorExample() As Boolean
Dim vector1 As New Vector(20, 30)
Dim vector2 As New Vector(45, 70)

' If the two vectors are equal, areEqual is True,
' otherwise it is False. In this example it is False.
Dim areEqual As Boolean = (vector1 = vector2)

Return areEqual

End Function
``````

## Remarques

Les propriétés et X Y d’un vecteur sont décrites Double à l’aide de valeurs.A vector's X and Y properties are described using Double values. Étant donné que la valeur Double d’un peut perdre la précision lors de l’exécution d’opérations arithmétiques, Vector une comparaison entre deux structures logiquement égales peut échouer.Because the value of a Double can lose precision when arithmetic operations are performed on it, a comparison between two Vector structures that are logically equal might fail.