Form.AutoSizeMode 屬性

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

取得或設定表單自動調整其大小所根據的模式。

public:
 property System::Windows::Forms::AutoSizeMode AutoSizeMode { System::Windows::Forms::AutoSizeMode get(); void set(System::Windows::Forms::AutoSizeMode value); };

[System.ComponentModel.Browsable(true)]
public System.Windows.Forms.AutoSizeMode AutoSizeMode { get; set; }

[<System.ComponentModel.Browsable(true)>]
member this.AutoSizeMode : System.Windows.Forms.AutoSizeMode with get, set

Public Property AutoSizeMode As AutoSizeMode

屬性值

AutoSizeMode

AutoSizeMode 列舉值。 預設為 GrowOnly。

屬性

BrowsableAttribute

例外狀況

InvalidEnumArgumentException

該值不是有效的 AutoSizeMode 值。

範例

下列範例顯示使用程式碼建立的表單，其會自動調整大小以符合其內容。 執行時，表單會顯示 、 LabelTextBox 輸入 URL 的 ，以及在 Button 使用者的預設網頁瀏覽器內顯示該 URL 的 。 此範例會使用 FlowLayoutPanel 來配置包含的控制項，一個接著一個。 它也會設定 AutoSize 和 AutoSizeMode 來成長和縮小，以符合其表單的內容。

private void Form1_Load(object sender, EventArgs e)
{
    this.AutoSize = true;
    this.AutoSizeMode = AutoSizeMode.GrowAndShrink;
    this.Text = "URL Opener";

    flowPanel = new FlowLayoutPanel();
    flowPanel.AutoSize = true;
    flowPanel.AutoSizeMode = AutoSizeMode.GrowAndShrink;
    this.Controls.Add(flowPanel);

    urlLabel = new Label();
    urlLabel.Name = "urlLabel";
    urlLabel.Text = "URL:";
    urlLabel.Width = 50;
    urlLabel.TextAlign = ContentAlignment.MiddleCenter;
    flowPanel.Controls.Add(urlLabel);

    urlTextBox = new TextBox();
    urlTextBox.Name = "urlTextBox";
    urlTextBox.Width = 250;
    flowPanel.Controls.Add(urlTextBox);

    urlButton = new Button();
    urlButton.Name = "urlButton";
    urlButton.Text = "Open URL in Browser";
    urlButton.Click += new EventHandler(urlButton_Click);
    flowPanel.Controls.Add(urlButton);
}

void urlButton_Click(object sender, EventArgs e)
{
    try
    {
        Uri newUri = new Uri(urlTextBox.Text);
    }
    catch (UriFormatException uriEx)
    {
        MessageBox.Show("Sorry, your URL is malformed. Try again. Error: " + uriEx.Message);
        urlTextBox.ForeColor = Color.Red;
        return;
    }
    
    // Valid URI. Reset any previous error color, and launch the URL in the 
    // default browser.
    // NOTE: Depending on the user's settings, this method of starting the
    // browser may use an existing window in an existing Web browser process.
    // To get around this, start up a specific browser instance instead using one of
    // the overloads for Process.Start. You can examine the registry to find the
    // current default browser and launch that, or hard-code a specific browser.
    urlTextBox.ForeColor = Color.Black;
    Process.Start(urlTextBox.Text);
}

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    Me.AutoSize = True
    Me.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink
    Me.Text = "URL Opener"

    flowPanel = New FlowLayoutPanel()
    flowPanel.AutoSize = True
    flowPanel.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink
    Me.Controls.Add(flowPanel)

    urlLabel = New Label()
    urlLabel.Name = "urlLabel"
    urlLabel.Text = "URL:"
    urlLabel.Width = 50
    urlLabel.TextAlign = ContentAlignment.MiddleCenter
    flowPanel.Controls.Add(urlLabel)

    urlTextBox = New TextBox()
    urlTextBox.Name = "urlTextBox"
    urlTextBox.Width = 250
    flowPanel.Controls.Add(urlTextBox)

    urlButton = New Button()
    urlButton.Name = "urlButton"
    urlButton.Text = "Open URL in Browser"
    flowPanel.Controls.Add(urlButton)
End Sub


Private Sub urlButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles urlButton.Click
    Try
        Dim newUri As New Uri(urlTextBox.Text)
    Catch uriEx As UriFormatException
        MessageBox.Show(("Sorry, your URL is malformed. Try again. Error: " + uriEx.Message))
        urlTextBox.ForeColor = Color.Red
        Return
    End Try

    ' Valid URI. Reset any previous error color, and launch the URL in the 
    ' default browser.
    ' NOTE: Depending on the user's settings, this method of starting the
    ' browser may use an existing window in an existing Web browser process.
    ' To get around this, start up a specific browser instance instead using one of
    ' the overloads for Process.Start. You can examine the registry to find the
    ' current default browser and launch that, or hard-code a specific browser.
    urlTextBox.ForeColor = Color.Black
    Process.Start(urlTextBox.Text)
End Sub

備註

將 AutoSizeMode 屬性設定為新值會導致重新配置表單。

不論 和 AutoSizeMode 屬性的值為何，表單都不會在 Visual Studio 表單設計工具中自動調整大小 AutoSize 。 表單會根據這兩個屬性的值，在執行時間正確地調整本身的大小。 相較之下，自訂 UserControl 會在設計階段和執行時間自動調整本身的大小。

另請參閱

• AutoSizeMode
• AutoSize
• OnLayout(LayoutEventArgs)