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MenuItemCollection.Item[Int32] Propriedade

  • Referência

Definição

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

Obtém o objeto MenuItem no índice especificado no objeto MenuItemCollection atual.

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

Parâmetros

index
Int32

O índice de base zero do MenuItem a recuperar.

Valor da propriedade

MenuItem

O MenuItem índice especificado no índice atual MenuItemCollection.

Exemplos

O exemplo de código a Items seguir demonstra como usar o indexador para recuperar o item de menu raiz da coleção de um Menu controle.


<%@ 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>

Comentários

Use esse indexador para acessar um MenuItem objeto do objeto atual MenuItemCollection no índice especificado usando a notação de matriz. O indexador permite que você acesse, modifique ou substitua um MenuItem objeto na coleção diretamente.

Aplica-se a

Confira também