Size3D.Equality(Size3D, Size3D) Operator

Definisi

Ruang nama:

System.Windows.Media.Media3D

Rakitan:

PresentationCore.dll

Membandingkan dua Size3D struktur untuk kesetaraan. Dua Size3D struktur sama jika nilai Xproperti , , Ydannya Z sama.

public:
 static bool operator ==(System::Windows::Media::Media3D::Size3D size1, System::Windows::Media::Media3D::Size3D size2);

public static bool operator == (System.Windows.Media.Media3D.Size3D size1, System.Windows.Media.Media3D.Size3D size2);

static member ( = ) : System.Windows.Media.Media3D.Size3D * System.Windows.Media.Media3D.Size3D -> bool

Public Shared Operator == (size1 As Size3D, size2 As Size3D) As Boolean

Parameter

size1

Size3D

Struktur pertama Size3D yang dibandingkan.

size2

Size3D

Struktur kedua Size3D untuk dibandingkan.

Mengembalikan

Boolean

trueXjika komponen , Y, dan Z dari size1 dan size2 sama; jika tidak, false.

Contoh

Contoh berikut menunjukkan cara menggunakan operator kesetaraan yang kelebihan beban untuk memeriksa apakah dua Size3D struktur sama.

// Checks if two Size3D structures are equal using the overloaded == operator. 
// Returns a Boolean.

// Declaring Size3D structure without initializing x,y,z values
Size3D size1 = new Size3D();

// Declaring Size3D structure and initializing x,y,z values
Size3D size2 = new Size3D(5, 10, 15);
Boolean areEqual;

// Assigning values to size1
size1.X = 2;
size1.Y = 4;
size1.Z = 6;

// Checking for equality
areEqual = size1 == size2;

// areEqual is False

// Displaying Results
syntaxString = " areEqual = size1 == size2;";
resultType = "Boolean";
operationString = "Checking if two Size3D structures are equal";
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString);

' Checks if two Size3D structures are equal using the overloaded == operator. 
' Returns a Boolean.

' Declaring Size3D structure without initializing x,y,z values
Dim size1 As New Size3D()

' Declaring Size3D structure and initializing x,y,z values
Dim size2 As New Size3D(5, 10, 15)
Dim areEqual As Boolean

' Assigning values to size1
size1.X = 2
size1.Y = 4
size1.Z = 6

' Checking for equality
areEqual = size1 = size2

' areEqual is False

' Displaying Results
syntaxString = " areEqual = size1 == size2"
resultType = "Boolean"
operationString = "Checking if two Size3D structures are equal"
ShowResults(areEqual.ToString(), syntaxString, resultType, operationString)

Keterangan

Karena Double nilai dapat kehilangan presisi ketika operasi aritmatika dilakukan padanya, perbandingan antara dua Size3D instans yang secara logis sama mungkin gagal.

Lihat juga

• Equals