Rect.Union Method

public:
 void Union(System::Windows::Point point);

public void Union (System.Windows.Point point);

member this.Union : System.Windows.Point -> unit

Public Sub Union (point As Point)

Parameters

Examples

The following example shows how to use the Union(Point) method to expand the current rectangle exactly enough to contain a given Point.

private Rect unionExample1()
{
    // 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);

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

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

See also

• Contains(Point)

public:
 void Union(System::Windows::Rect rect);

public void Union (System.Windows.Rect rect);

member this.Union : System.Windows.Rect -> unit

Public Sub Union (rect As Rect)

Parameters

Examples

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;
}

See also

• Contains(Rect)

public:
 static System::Windows::Rect Union(System::Windows::Rect rect, System::Windows::Point point);

public static System.Windows.Rect Union (System.Windows.Rect rect, System.Windows.Point point);

static member Union : System.Windows.Rect * System.Windows.Point -> System.Windows.Rect

Public Shared Function Union (rect As Rect, point As Point) As Rect

Parameters

Returns

A rectangle that is exactly large enough to contain the specified rectangle and the specified point.

Examples

The following example shows how to use the Union(Rect, Point) method to create a rectangle that is exactly large enough to contain a given rectangle and a given Point.

private Rect unionExample3()
{
    // 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 and the specified Point. In this example, returnRect 
    // expands to a location of 0,0 and a size of 250,60.
    Rect returnRect = Rect.Union(myRectangle2, new Point(250,60));

    // Returns 0,0,250,60
    return returnRect;
}

See also

• Contains(Point)

public:
 static System::Windows::Rect Union(System::Windows::Rect rect1, System::Windows::Rect rect2);

public static System.Windows.Rect Union (System.Windows.Rect rect1, System.Windows.Rect rect2);

static member Union : System.Windows.Rect * System.Windows.Rect -> System.Windows.Rect

Public Shared Function Union (rect1 As Rect, rect2 As Rect) As Rect

Parameters

Returns

The resulting rectangle.

Examples

The following example shows how to use the Union(Rect, Rect) method to create a rectangle that is exactly large enough to contain two given rectangles.

private Rect unionExample4()
{
    // 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);

    // Create a third rectangle.
    Rect myRectangle3 = new Rect();
    myRectangle3.Location = new Point(210, 60);
    myRectangle3.Size = new Size(50, 50);

    // The Union method expands the current rectangle exactly enough to contain 
    // the two specified rectangles. In this example, returnRect expands to 
    // a location of 0,0 and a size of 260,110.
    Rect returnRect = Rect.Union(myRectangle2, myRectangle3);

    // Returns 0,0,260,110
    return returnRect;
}

See also

• Contains(Rect)