MenuStrip.MdiWindowListItem 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

获取或设置用于显示多文档界面 (MDI) 子窗体列表的 ToolStripMenuItem。

public:
 property System::Windows::Forms::ToolStripMenuItem ^ MdiWindowListItem { System::Windows::Forms::ToolStripMenuItem ^ get(); void set(System::Windows::Forms::ToolStripMenuItem ^ value); };

[System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.MdiWindowListItemConverter))]
public System.Windows.Forms.ToolStripMenuItem? MdiWindowListItem { get; set; }

[<System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.MdiWindowListItemConverter))>]
member this.MdiWindowListItem : System.Windows.Forms.ToolStripMenuItem with get, set

Public Property MdiWindowListItem As ToolStripMenuItem

属性值

ToolStripMenuItem

表示菜单项（显示应用程序中打开的 MDI 子窗体列表）的 ToolStripMenuItem。

属性

TypeConverterAttribute

示例

下面的代码示例演示 了 MdiWindowListItem 属性。 此示例是为 类提供的更大示例的 ToolStripPanel 一部分。

// Create a MenuStrip control with a new window.
MenuStrip ms = new MenuStrip();
ToolStripMenuItem windowMenu = new ToolStripMenuItem("Window");
ToolStripMenuItem windowNewMenu = new ToolStripMenuItem("New", null, new EventHandler(windowNewMenu_Click));
windowMenu.DropDownItems.Add(windowNewMenu);
((ToolStripDropDownMenu)(windowMenu.DropDown)).ShowImageMargin = false;
((ToolStripDropDownMenu)(windowMenu.DropDown)).ShowCheckMargin = true;

// Assign the ToolStripMenuItem that displays 
// the list of child forms.
ms.MdiWindowListItem = windowMenu;

// Add the window ToolStripMenuItem to the MenuStrip.
ms.Items.Add(windowMenu);

// Dock the MenuStrip to the top of the form.
ms.Dock = DockStyle.Top;

// The Form.MainMenuStrip property determines the merge target.
this.MainMenuStrip = ms;

' Create a MenuStrip control with a new window.
Dim ms As New MenuStrip()
Dim windowMenu As New ToolStripMenuItem("Window")
Dim windowNewMenu As New ToolStripMenuItem("New", Nothing, New EventHandler(AddressOf windowNewMenu_Click))
windowMenu.DropDownItems.Add(windowNewMenu)
CType(windowMenu.DropDown, ToolStripDropDownMenu).ShowImageMargin = False
CType(windowMenu.DropDown, ToolStripDropDownMenu).ShowCheckMargin = True

' Assign the ToolStripMenuItem that displays 
' the list of child forms.
ms.MdiWindowListItem = windowMenu

' Add the window ToolStripMenuItem to the MenuStrip.
ms.Items.Add(windowMenu)

' Dock the MenuStrip to the top of the form.
ms.Dock = DockStyle.Top

' The Form.MainMenuStrip property determines the merge target.
Me.MainMenuStrip = ms

注解

MdiWindowListItem使用 属性指定或发现显示 ToolStripMenuItem MDI 子级的 。

使用子菜单上的 MenuActivate 和 MenuDeactivate 事件来反映 对 值 MdiWindowListItem所做的更改。