Modifica

MenuItemCollection.Item[Int32] Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets the MenuItem object at the specified index in the current MenuItemCollection object.

public:
 property System::Web::UI::WebControls::MenuItem ^ default[int] { System::Web::UI::WebControls::MenuItem ^ get(int index); };
public System.Web.UI.WebControls.MenuItem this[int index] { get; }
member this.Item(int) : System.Web.UI.WebControls.MenuItem
Default Public ReadOnly Property Item(index As Integer) As MenuItem

Parameters

index
Int32

The zero-based index of the MenuItem to retrieve.

Property Value

MenuItem

The MenuItem at the specified index in the current MenuItemCollection.

Examples

The following code example demonstrates how to use the indexer to retrieve the root menu item from the Items collection of a Menu control.


<%@ 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)
    {
      // Retrieve the root menu item from the Items
      // collection of the Menu control using the indexer.
      MenuItem homeMenuItem = NavigationMenu.Items[0];

      // Create the submenu item.
      MenuItem newSubMenuItem = new MenuItem("New Category");

      // Add the submenu item to the ChildItems
      // collection of the root menu item.
      homeMenuItem.ChildItems.Add(newSubMenuItem);
    }
  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemCollection Add Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemCollection Add Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server">
        
        <items>
          <asp:menuitem text="Home"
            tooltip="Home">
            <asp:menuitem text="Music"
              tooltip="Music">
              <asp:menuitem text="Classical"
                tooltip="Classical"/>
              <asp:menuitem text="Rock"
                tooltip="Rock"/>
              <asp:menuitem text="Jazz"
                tooltip="Jazz"/>
            </asp:menuitem>
            <asp:menuitem text="Movies"
              tooltip="Movies">
              <asp:menuitem text="Action"
                tooltip="Action"/>
              <asp:menuitem text="Drama"
                tooltip="Drama"/>
              <asp:menuitem text="Musical"
                tooltip="Musical"/>
            </asp:menuitem>
          </asp:menuitem>
        </items>

      </asp:menu>

    </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

      ' Retrieve the root menu item from the Items
      ' collection of the Menu control using the indexer.
      Dim homeMenuItem As MenuItem = NavigationMenu.Items(0)

      ' Create the submenu item.
      Dim newSubMenuItem = New MenuItem("New Category")

      ' Add the submenu item to the ChildItems
      ' collection of the root menu item.
      homeMenuItem.ChildItems.Add(newSubMenuItem)
    
    End If
      
  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemCollection Add Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemCollection Add Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server">
        
        <items>
          <asp:menuitem text="Home"
            tooltip="Home">
            <asp:menuitem text="Music"
              tooltip="Music">
              <asp:menuitem text="Classical"
                tooltip="Classical"/>
              <asp:menuitem text="Rock"
                tooltip="Rock"/>
              <asp:menuitem text="Jazz"
                tooltip="Jazz"/>
            </asp:menuitem>
            <asp:menuitem text="Movies"
              tooltip="Movies">
              <asp:menuitem text="Action"
                tooltip="Action"/>
              <asp:menuitem text="Drama"
                tooltip="Drama"/>
              <asp:menuitem text="Musical"
                tooltip="Musical"/>
            </asp:menuitem>
          </asp:menuitem>
        </items>

      </asp:menu>

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

Remarks

Use this indexer to access a MenuItem object from the current MenuItemCollection object at the specified index using array notation. The indexer allows you to access, modify, or replace a MenuItem object in the collection directly.

Applies to

See also