Size3D.Equality Operator (Size3D, Size3D)


Compares two Size3D structures for equality. Two Size3D structures are equal if the values of their X, Y, and Z properties are the same.

Namespace:   System.Windows.Media.Media3D
Assembly:  PresentationCore (in PresentationCore.dll)

public static bool operator ==(
	Size3D size1,
	Size3D size2


Type: System.Windows.Media.Media3D.Size3D

The first Size3D structure to compare.

Type: System.Windows.Media.Media3D.Size3D

The second Size3D structure to compare.

Return Value

Type: System.Boolean

true if the X, Y, and Z components of size1 and size2 are equal; otherwise, false.

Because Double values can lose precision when arithmetic operations are performed on them, a comparison between two Size3D instances that are logically equal might fail.

The following example shows how to use the overloaded equality operator to check if two Size3D structures are equal.

                  // 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);

.NET Framework
Available since 3.0
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