Form.MaximizeBox 属性
重要
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获取或设置一个值，该值指示是否在窗体的标题栏中显示“最大化”按钮。
public:
property bool MaximizeBox { bool get(); void set(bool value); };C#
public bool MaximizeBox { get; set; }member this.MaximizeBox : bool with get, setPublic Property MaximizeBox As Boolean
true 以显示窗体的 “最大化 ”按钮;否则为 false。 默认值为 true。
以下示例创建 的新实例 Form ，并调用 ShowDialog 方法将窗体显示为对话框。 该示例将 FormBorderStyle、AcceptButton、、CancelButtonMinimizeBox、 MaximizeBox和 StartPosition 属性设置为将窗体的外观和功能更改为对话框。 该示例还使用 Add 窗体集合的 Controls 方法添加两个 Button 控件。 该示例使用 HelpButton 属性在对话框的描述文字栏中显示帮助按钮。
public:
void CreateMyForm()
{
// Create a new instance of the form.
Form^ form1 = gcnew Form;
// Create two buttons to use as the accept and cancel buttons.
Button^ button1 = gcnew Button;
Button^ button2 = gcnew Button;
// Set the text of button1 to "OK".
button1->Text = "OK";
// Set the position of the button on the form.
button1->Location = Point(10,10);
// Set the text of button2 to "Cancel".
button2->Text = "Cancel";
// Set the position of the button based on the location of button1.
button2->Location =
Point( button1->Left, button1->Height + button1->Top + 10 );
// Set the caption bar text of the form.
form1->Text = "My Dialog Box";
// Display a help button on the form.
form1->HelpButton = true;
// Define the border style of the form to a dialog box.
form1->FormBorderStyle = ::FormBorderStyle::FixedDialog;
// Set the MaximizeBox to false to remove the maximize box.
form1->MaximizeBox = false;
// Set the MinimizeBox to false to remove the minimize box.
form1->MinimizeBox = false;
// Set the accept button of the form to button1.
form1->AcceptButton = button1;
// Set the cancel button of the form to button2.
form1->CancelButton = button2;
// Set the start position of the form to the center of the screen.
form1->StartPosition = FormStartPosition::CenterScreen;
// Add button1 to the form.
form1->Controls->Add( button1 );
// Add button2 to the form.
form1->Controls->Add( button2 );
// Display the form as a modal dialog box.
form1->ShowDialog();
}
C#
public void CreateMyForm()
{
// Create a new instance of the form.
Form form1 = new Form();
// Create two buttons to use as the accept and cancel buttons.
Button button1 = new Button ();
Button button2 = new Button ();
// Set the text of button1 to "OK".
button1.Text = "OK";
// Set the position of the button on the form.
button1.Location = new Point (10, 10);
// Set the text of button2 to "Cancel".
button2.Text = "Cancel";
// Set the position of the button based on the location of button1.
button2.Location
= new Point (button1.Left, button1.Height + button1.Top + 10);
// Set the caption bar text of the form.
form1.Text = "My Dialog Box";
// Display a help button on the form.
form1.HelpButton = true;
// Define the border style of the form to a dialog box.
form1.FormBorderStyle = FormBorderStyle.FixedDialog;
// Set the MaximizeBox to false to remove the maximize box.
form1.MaximizeBox = false;
// Set the MinimizeBox to false to remove the minimize box.
form1.MinimizeBox = false;
// Set the accept button of the form to button1.
form1.AcceptButton = button1;
// Set the cancel button of the form to button2.
form1.CancelButton = button2;
// Set the start position of the form to the center of the screen.
form1.StartPosition = FormStartPosition.CenterScreen;
// Add button1 to the form.
form1.Controls.Add(button1);
// Add button2 to the form.
form1.Controls.Add(button2);
// Display the form as a modal dialog box.
form1.ShowDialog();
}
Public Sub CreateMyForm()
' Create a new instance of the form.
Dim form1 As New Form()
' Create two buttons to use as the accept and cancel buttons.
Dim button1 As New Button()
Dim button2 As New Button()
' Set the text of button1 to "OK".
button1.Text = "OK"
' Set the position of the button on the form.
button1.Location = New Point(10, 10)
' Set the text of button2 to "Cancel".
button2.Text = "Cancel"
' Set the position of the button based on the location of button1.
button2.Location = _
New Point(button1.Left, button1.Height + button1.Top + 10)
' Set the caption bar text of the form.
form1.Text = "My Dialog Box"
' Display a help button on the form.
form1.HelpButton = True
' Define the border style of the form to a dialog box.
form1.FormBorderStyle = FormBorderStyle.FixedDialog
' Set the MaximizeBox to false to remove the maximize box.
form1.MaximizeBox = False
' Set the MinimizeBox to false to remove the minimize box.
form1.MinimizeBox = False
' Set the accept button of the form to button1.
form1.AcceptButton = button1
' Set the cancel button of the form to button2.
form1.CancelButton = button2
' Set the start position of the form to the center of the screen.
form1.StartPosition = FormStartPosition.CenterScreen
' Add button1 to the form.
form1.Controls.Add(button1)
' Add button2 to the form.
form1.Controls.Add(button2)
' Display the form as a modal dialog box.
form1.ShowDialog()
End Sub
“ 最大化 ”按钮使用户能够将窗口放大为全屏大小。 若要显示 “最大化” 按钮，窗体 ControlBox 属性的值必须为 true，其默认值。 属性ControlBox确定描述文字栏的右上角是否包含诸如最大化按钮、最小化按钮、帮助按钮和关闭按钮等控件。 此外，还必须将窗体的 FormBorderStyle 属性设置为 FormBorderStyle.FixedSingle、 FormBorderStyle.Sizable、 FormBorderStyle.Fixed3D或 FormBorderStyle.FixedDialog。
最大化窗口时， “最大化 ”按钮会自动成为还原按钮。 最小化或还原窗口会自动将还原按钮更改回 “最大化 ”按钮。
备注
在运行时最大化窗体会生成事件 Resize 。 属性 WindowState 反映窗口的当前状态。 如果将 属性设置为 WindowStateFormWindowState.Maximized，则窗体将独立于 对 和 FormBorderStyle 属性生效MaximizeBox的任何设置进行最大化。
| 产品 | 版本 |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9, 10 |
