PictureBoxSizeMode 列舉

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

指定如何在 PictureBox 內定位影像。

public enum class PictureBoxSizeMode

public enum PictureBoxSizeMode

type PictureBoxSizeMode = 

Public Enum PictureBoxSizeMode

繼承

Object

ValueType

Enum

PictureBoxSizeMode

欄位

AutoSize	2	將 PictureBox 的大小調整成與其所包含影像的大小相等。
CenterImage	3	如果 PictureBox 大於影像，影像即置中顯示。 如果影像大於 PictureBox，圖片即放在 PictureBox 的中央，而外緣被裁剪。
Normal	0	影像放置在 PictureBox 的左上角。 如果影像大於包含它的 PictureBox，就會裁剪影像。
StretchImage	1	PictureBox 內的影像會延伸或縮小，以調整成最適合 PictureBox 的大小。
Zoom	4	不論是增大或縮小，影像大小都維持大小比例。

範例

下列程式碼範例示範 屬性的使用 SizeMode 。 若要執行此範例，請將下列程式碼貼到 Windows Form 中，並從表單的建構函式或 Load-event 處理方法呼叫 InitializePictureBoxAndButton 方法。

PictureBox PictureBox1 = new PictureBox();
Button Button1 = new Button();

private void InitializePictureBoxAndButton()
{

    this.Controls.Add(PictureBox1);
    this.Controls.Add(Button1);
    Button1.Location = new Point(175, 20);
    Button1.Text = "Stretch";
    Button1.Click += new EventHandler(Button1_Click);

    // Set the size of the PictureBox control.
    this.PictureBox1.Size = new System.Drawing.Size(140, 140);

    //Set the SizeMode to center the image.
    this.PictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;

    // Set the border style to a three-dimensional border.
    this.PictureBox1.BorderStyle = BorderStyle.Fixed3D;

    // Set the image property.
    this.PictureBox1.Image = new Bitmap(typeof(Button), "Button.bmp");
}

private void Button1_Click(System.Object sender, System.EventArgs e)
{
    // Set the SizeMode property to the StretchImage value.  This
    // will enlarge the image as needed to fit into
    // the PictureBox.
    PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
}

Dim PictureBox1 As New PictureBox()
Dim WithEvents Button1 As New Button

<STAThread()> _
Public Shared Sub Main()
    Application.EnableVisualStyles()
    Application.Run(New Form1())
End Sub

Private Sub InitializePictureBoxAndButton()

    Me.Controls.Add(PictureBox1)
    Me.Controls.Add(Button1)
    Button1.Location = New Point(175, 20)
    Button1.Text = "Stretch"

    ' Set the size of the PictureBox control.
    Me.PictureBox1.Size = New System.Drawing.Size(140, 140)

    'Set the SizeMode to center the image.
    Me.PictureBox1.SizeMode = PictureBoxSizeMode.CenterImage

    ' Set the border style to a three-dimensional border.
    Me.PictureBox1.BorderStyle = BorderStyle.Fixed3D

    ' Set the image property.
    Me.PictureBox1.Image = New Bitmap(GetType(Button), "Button.bmp")
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
    ' Set the SizeMode property to the StretchImage value.  This
    ' will enlarge the image as needed to fit into
    ' the PictureBox.
    PictureBox1.SizeMode = PictureBoxSizeMode.StretchImage
End Sub

備註

使用這個列舉的成員來設定 SizeMode 的 PictureBox 屬性值。