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Rect.op_Equality Method

Compares two rectangles for exact equality.

Namespace: System.Windows
Assembly: WindowsBase (in windowsbase.dll)

public static bool operator == (
	Rect rect1,
	Rect rect2
)
You cannot use methods in XAML.

Parameters

rect1

The first rectangle to compare.

rect2

The second rectangle to compare.

Return Value

true if the two rectangles have the same Location and Size; otherwise, false.

Note: A rectangle's Location and Size are described using Double values. Because Double values can lose precision when operated upon, a comparison between two values that are logically equal might fail.

The following example shows how to use the op_Equality method to determine if two rectangles are exactly equal.

private Boolean overloadedEqualityOperatorExample()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Create second rectangle to compare to the first.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(0, 0);
    myRectangle2.Size = new Size(200, 50);

    // Check if the two Rects are exactly equal using the overloaded equality operator.
    // areEqual is false because although the size of each rectangle is the same,
    // the locations are different.
    bool areEqual = (myRectangle == myRectangle2);

    // Returns false.
    return areEqual;

}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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