Rect.Contains 方法

定义

命名空间:

System.Windows

程序集:

WindowsBase.dll

指示矩形中是否包含指定的点或矩形。

重载

Contains(Point)	指示矩形中是否包含指定点。
Contains(Rect)	指示矩形中是否包含指定矩形。
Contains(Double, Double)	指示矩形中是否包含指定的 x 坐标和 y 坐标。

Contains(Point)

指示矩形中是否包含指定点。

public:
 bool Contains(System::Windows::Point point);

public bool Contains (System.Windows.Point point);

member this.Contains : System.Windows.Point -> bool

Public Function Contains (point As Point) As Boolean

参数

point

Point

要检查的点。

返回

Boolean

如果矩形中包含指定点，则为 true；否则为 false。

示例

下面的示例演示如何使用 Contains(Point) 方法确定矩形是否包含指定的 Point。

private bool rectContainsExample1()
{
    // 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);

    // Using the Contains method, see if the rectangle contains the specified
    // point. doesContain is true because the point is inside of myRectangle.
    bool doesContain = myRectangle.Contains(new Point(13, 30));

    return doesContain;
}

Contains(Rect)

指示矩形中是否包含指定矩形。

public:
 bool Contains(System::Windows::Rect rect);

public bool Contains (System.Windows.Rect rect);

member this.Contains : System.Windows.Rect -> bool

Public Function Contains (rect As Rect) As Boolean

参数

rect

Rect

要检查的矩形。

返回

Boolean

如果 rect 完全包含在矩形中，则为 true；否则为 false。

示例

以下示例演示如何使用 Contains(Rect) 方法确定一个矩形是否包含另一个矩形。

private bool rectContainsExample2()
{
    // Create a rectangle.
    Rect myRectangle1 = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle1.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle1.Size = new Size(200, 50);

    // Create second rectangle.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(12, 12);
    myRectangle2.Size = new Size(10, 60);

    // Using the Contains method, see if the second rectangle is 
    // contained within the first rectangle. doesContain is false
    // because only part of myRectangle2 is contained in myRectangle1 
    // (myRectangle2 is too wide).
    bool doesContain = myRectangle1.Contains(myRectangle2);

    return doesContain;
}

Contains(Double, Double)

指示矩形中是否包含指定的 x 坐标和 y 坐标。

public:
 bool Contains(double x, double y);

public bool Contains (double x, double y);

member this.Contains : double * double -> bool

Public Function Contains (x As Double, y As Double) As Boolean

参数

x

Double

要检查的点的 x 坐标。

y

Double

要检查的点的 y 坐标。

返回

Boolean

如果（x、y）包含在矩形中，则为 true；否则为 false。

示例

下面的示例演示如何使用 Contains(Double, Double) 方法确定矩形是否包含由给定的 x 坐标和 y 坐标指定的点。

private bool rectContainsExample3()
{
    // 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);

    // Using the Contains method, see if the rectangle contains the specified
    // point specified by the given X and Y coordinates. doesContain is false 
    // because the X and Y coordinates specify a point outside of myRectangle.
    bool doesContain = myRectangle.Contains(4, 13);

    return doesContain;
}