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Rect.Union Method (Rect)

Expands the current rectangle exactly enough to contain the specified rectangle.

Namespace:  System.Windows
Assembly:  WindowsBase (in WindowsBase.dll)
public void Union(
	Rect rect
)

Parameters

rect
Type: System.Windows.Rect

The rectangle to include.

The following example shows how to use the Union(Rect) method to expand the current rectangle exactly enough to contain the specified rectangle.

private Rect unionExample2()
{
    // 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.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(0, 0);
    myRectangle2.Size = new Size(200, 50);

    // The Union method expands the current rectangle exactly enough to contain  
    // the specified rectangle. myRectangle expands to a location of 0,0 and a size 
    // of 210,55.
    myRectangle.Union(myRectangle2);

    // Returns 0,0,210,55 
    return myRectangle;

}

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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