MenuItem 构造函数

定义

初始化 MenuItem 类的新实例。

重载

名称 说明
MenuItem()

在不使用菜单文本或值的情况下初始化类的新实例 MenuItem

MenuItem(String)

使用指定的菜单文本初始化类的新实例 MenuItem

MenuItem(String, String)

使用指定的菜单文本和值初始化类的新实例 MenuItem

MenuItem(String, String, String)

使用图像的指定菜单文本、值和 URL 初始化类的新实例 MenuItem

MenuItem(String, String, String, String)

使用指定的菜单文本、值、图像 URL 和导航 URL 初始化类的新实例 MenuItem

MenuItem(String, String, String, String, String)

使用指定的菜单文本、值、图像 URL、导航 URL 和目标初始化类的新实例 MenuItem

MenuItem()

在不使用菜单文本或值的情况下初始化类的新实例 MenuItem

public:
 MenuItem();
public MenuItem();
Public Sub New ()

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem;
      homeMenuItem = CreateMenuItem("Home", "Home.aspx", "Home");

      // Create the submenu items.
      MenuItem musicSubMenuItem;
      musicSubMenuItem = CreateMenuItem("Music", "Music.aspx", "Music");

      MenuItem moviesSubMenuItem;
      moviesSubMenuItem = CreateMenuItem("Movies", "Movies.aspx", "Movies");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }
  
  MenuItem CreateMenuItem(String text, String url, String toolTip)
  {
    
    // Create a new MenuItem object.
    MenuItem menuItem = new MenuItem();
    
    // Set the properties of the MenuItem object using
    // the specified parameters.
    menuItem.Text = text;
    menuItem.NavigateUrl = url;
    menuItem.ToolTip = toolTip;
    
    return menuItem;
    
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
    
    If Not IsPostBack Then
      
      ' Create the menu structure.
    
      ' Create the root menu item.
      Dim homeMenuItem As MenuItem
      homeMenuItem = CreateMenuItem("Home", "Home.aspx", "Home")
    
      ' Create the submenu items.
      Dim musicSubMenuItem As MenuItem
      musicSubMenuItem = CreateMenuItem("Music", "Music.aspx", "Music")
    
      Dim moviesSubMenuItem As MenuItem
      moviesSubMenuItem = CreateMenuItem("Movies", "Movies.aspx", "Movies")
    
      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)
    
      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
    
  End Sub
  
  Function CreateMenuItem(ByVal text As String, ByVal url As String, ByVal toolTip As String) As MenuItem
    
    ' Create a new MenuItem object.
    Dim menuItem As New MenuItem()
    
    ' Set the properties of the MenuItem object using
    ' the specified parameters.
    MenuItem.Text = text
    MenuItem.NavigateUrl = url
    MenuItem.ToolTip = toolTip
    
    Return MenuItem
    
  End Function

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可创建没有菜单文本或值的类的新实例 MenuItem

注释

使用此构造函数时,对象中的所有 MenuItem 属性都设置为其默认值。 创建对象后,请务必根据需要设置属性。

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于

MenuItem(String)

使用指定的菜单文本初始化类的新实例 MenuItem

public:
 MenuItem(System::String ^ text);
public MenuItem(string text);
new System.Web.UI.WebControls.MenuItem : string -> System.Web.UI.WebControls.MenuItem
Public Sub New (text As String)

参数

text
String

控件中 Menu 菜单项显示的文本。

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem = new MenuItem("Home");

      // Create the submenu items.
      MenuItem musicSubMenuItem = new MenuItem("Music");
      MenuItem moviesSubMenuItem = new MenuItem("Movies");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
  
    If Not IsPostBack Then
    
      ' Create the menu structure.

      ' Create the root menu item.
      Dim homeMenuItem As New MenuItem("Home")

      ' Create the submenu items.
      Dim musicSubMenuItem As New MenuItem("Music")
      Dim moviesSubMenuItem As New MenuItem("Movies")

      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)

      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
  
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可以使用参数指定的MenuItem菜单文本创建类的新实例text

下表显示了类实例 MenuItem 的初始属性值。

财产 初始值
Text 文本参数的值。

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于

MenuItem(String, String)

使用指定的菜单文本和值初始化类的新实例 MenuItem

public:
 MenuItem(System::String ^ text, System::String ^ value);
public MenuItem(string text, string value);
new System.Web.UI.WebControls.MenuItem : string * string -> System.Web.UI.WebControls.MenuItem
Public Sub New (text As String, value As String)

参数

text
String

控件中 Menu 菜单项显示的文本。

value
String

与菜单项关联的补充数据,例如用于处理回发事件的数据。

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem = new MenuItem("Home", "Root");

      // Create the submenu items.
      MenuItem musicSubMenuItem = new MenuItem("Music", "Category 1");
      MenuItem moviesSubMenuItem = new MenuItem("Movies", "Category 2");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
  
    If Not IsPostBack Then
    
      ' Create the menu structure.

      ' Create the root menu item.
      Dim homeMenuItem As New MenuItem("Home", "Root")

      ' Create the submenu items.
      Dim musicSubMenuItem As New MenuItem("Music", "Category 1")
      Dim moviesSubMenuItem As New MenuItem("Movies", "Category 2")

      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)

      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
  
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可分别使用菜单文本和参数指定的MenuItemtext菜单文本和值创建类的新实例value

下表显示了类实例 MenuItem 的初始属性值。

财产 初始值
Text 参数的值 text
Value 参数的值 value

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于

MenuItem(String, String, String)

使用图像的指定菜单文本、值和 URL 初始化类的新实例 MenuItem

public:
 MenuItem(System::String ^ text, System::String ^ value, System::String ^ imageUrl);
public MenuItem(string text, string value, string imageUrl);
new System.Web.UI.WebControls.MenuItem : string * string * string -> System.Web.UI.WebControls.MenuItem
Public Sub New (text As String, value As String, imageUrl As String)

参数

text
String

控件中 Menu 菜单项显示的文本。

value
String

与菜单项关联的补充数据,例如用于处理回发事件的数据。

imageUrl
String

菜单项中文本旁边显示的图像的 URL。

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem = new MenuItem("Home", "Root", 
        @"Images\Home.jpg");

      // Create the submenu items.
      MenuItem musicSubMenuItem = new MenuItem("Music", "Category 1", 
        @"Images\Music.jpg");
      MenuItem moviesSubMenuItem = new MenuItem("Movies", "Category 2", 
        @"Images\Movies.jpg");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
  
    If Not IsPostBack Then
    
      ' Create the menu structure.

      ' Create the root menu item.
      Dim homeMenuItem As New MenuItem("Home", "Root", _
        "Images\Home.jpg")

      ' Create the submenu items.
      Dim musicSubMenuItem As New MenuItem("Music", "Category 1", _
        "Images\Music.jpg")
      Dim moviesSubMenuItem As New MenuItem("Movies", "Category 2", _
        "Images\Movies.jpg")

      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)

      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
  
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可分别使用菜单文本、值和图像 URL 和参数创建MenuItemtextvalue类的新实例。imageUrl

下表显示了类实例 MenuItem 的初始属性值。

财产 初始值
Text 参数的值 text
Value 参数的值 value
ImageUrl 参数的值 imageUrl

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于

MenuItem(String, String, String, String)

使用指定的菜单文本、值、图像 URL 和导航 URL 初始化类的新实例 MenuItem

public:
 MenuItem(System::String ^ text, System::String ^ value, System::String ^ imageUrl, System::String ^ navigateUrl);
public MenuItem(string text, string value, string imageUrl, string navigateUrl);
new System.Web.UI.WebControls.MenuItem : string * string * string * string -> System.Web.UI.WebControls.MenuItem
Public Sub New (text As String, value As String, imageUrl As String, navigateUrl As String)

参数

text
String

控件中 Menu 菜单项显示的文本。

value
String

与菜单项关联的补充数据,例如用于处理回发事件的数据。

imageUrl
String

菜单项中文本旁边显示的图像的 URL。

navigateUrl
String

单击菜单项时链接到的 URL。

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem = new MenuItem("Home", "Root",
        @"Images\Home.jpg", "Home.aspx");

      // Create the submenu items.
      MenuItem musicSubMenuItem = new MenuItem("Music", "Category 1",
        @"Images\Music.jpg", "Music.aspx");
      MenuItem moviesSubMenuItem = new MenuItem("Movies", "Category 2",
        @"Images\Movies.jpg", "Movies.aspx");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
  
    If Not IsPostBack Then
    
      ' Create the menu structure.

      ' Create the root menu item.
      Dim homeMenuItem As New MenuItem("Home", "Root", _
        "Images\Home.jpg", "Home.aspx")

      ' Create the submenu items.
      Dim musicSubMenuItem As New MenuItem("Music", "Category 1", _
        "Images\Music.jpg", "Music.aspx")
      Dim moviesSubMenuItem As New MenuItem("Movies", "Category 2", _
        "Images\Movies.jpg", "Movies.aspx")

      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)

      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
  
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可分别使用菜单文本、值、图像 URL 和MenuItem导航 URL textvalueimageUrl创建类的新实例navigateUrl

下表显示了类实例 MenuItem 的初始属性值。

财产 初始值
Text 参数的值 text
Value 参数的值 value
ImageUrl 参数的值 imageUrl
NavigateUrl 参数的值 navigateUrl

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于

MenuItem(String, String, String, String, String)

使用指定的菜单文本、值、图像 URL、导航 URL 和目标初始化类的新实例 MenuItem

public:
 MenuItem(System::String ^ text, System::String ^ value, System::String ^ imageUrl, System::String ^ navigateUrl, System::String ^ target);
public MenuItem(string text, string value, string imageUrl, string navigateUrl, string target);
new System.Web.UI.WebControls.MenuItem : string * string * string * string * string -> System.Web.UI.WebControls.MenuItem
Public Sub New (text As String, value As String, imageUrl As String, navigateUrl As String, target As String)

参数

text
String

控件中 Menu 菜单项显示的文本。

value
String

与菜单项关联的补充数据,例如用于处理回发事件的数据。

imageUrl
String

菜单项中文本旁边显示的图像的 URL。

navigateUrl
String

单击菜单项时链接到的 URL。

target
String

单击菜单项时,显示链接到菜单项的网页内容的目标窗口或框架。

示例

以下示例演示如何使用此构造函数创建类的新实例 MenuItem 。 然后,该 MenuItem 对象用于动态填充控件中的 Menu 菜单项。


<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  void Page_Load(Object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
      // Create the menu structure.

      // Create the root menu item.
      MenuItem homeMenuItem = new MenuItem("Home", "Root",
        @"Images\Home.jpg", "Home.aspx", "_self");

      // Create the submenu items.
      MenuItem musicSubMenuItem = new MenuItem("Music", "Category 1",
        @"Images\Music.jpg", "Music.aspx", "_blank");
      MenuItem moviesSubMenuItem = new MenuItem("Movies", "Category 2",
        @"Images\Movies.jpg", "Movies.aspx", "_blank");

      // Add the submenu items to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem);
      homeMenuItem.ChildItems.Add(moviesSubMenuItem);

      // Add the root menu item to the Items collection 
      // of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        runat="server"/>

    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
  
    If Not IsPostBack Then
    
      ' Create the menu structure.

      ' Create the root menu item.
      Dim homeMenuItem As New MenuItem("Home", "Root", _
        "Images\Home.jpg", "Home.aspx", "_self")

      ' Create the submenu items.
      Dim musicSubMenuItem As New MenuItem("Music", "Category 1", _
        "Images\Music.jpg", "Music.aspx", "_blank")
      Dim moviesSubMenuItem As New MenuItem("Movies", "Category 2", _
        "Images\Movies.jpg", "Movies.aspx", "_blank")

      ' Add the submenu items to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(musicSubMenuItem)
      homeMenuItem.ChildItems.Add(moviesSubMenuItem)

      ' Add the root menu item to the Items collection 
      ' of the Menu control.
      NavigationMenu.Items.Add(homeMenuItem)
      
    End If
  
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItem Constructor Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItem Constructor Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

    </form>
  </body>
</html>

注解

使用此构造函数可分别使用菜单文本、值、图像 URL、导航 URL 和MenuItem目标textvalueimageUrlnavigateUrl创建类的新实例。target

下表显示了类实例 MenuItem 的初始属性值。

财产 初始值
Text 参数的值 text
Value 参数的值 value
ImageUrl 参数的值 imageUrl
NavigateUrl 参数的值 navigateUrl
Target 参数的值 target

在动态填充Items控件的集合或Menu对象的集合ChildItemsMenuItem时,通常使用此构造函数。

另请参阅

适用于