MenuItemBindingCollection.CopyTo(MenuItemBinding[], Int32) Metodo

Definizione

Copia tutti gli elementi dall'oggetto MenuItemBindingCollection a una matrice unidimensionale compatibile di oggetti MenuItemBinding, a partire dall'indice specificato nella matrice di destinazione.Copies all the items from the MenuItemBindingCollection object to a compatible one-dimensional array of MenuItemBinding objects, starting at the specified index in the target array.

public:
 void CopyTo(cli::array <System::Web::UI::WebControls::MenuItemBinding ^> ^ array, int index);
public void CopyTo (System.Web.UI.WebControls.MenuItemBinding[] array, int index);
override this.CopyTo : System.Web.UI.WebControls.MenuItemBinding[] * int -> unit
Public Sub CopyTo (array As MenuItemBinding(), index As Integer)

Parametri

array
MenuItemBinding[]

Matrice in base zero di oggetti MenuItemBinding che riceve gli elementi copiati dall'insieme.A zero-based array of MenuItemBinding objects that receives the copied items from the collection.

index
Int32

Posizione nella matrice di destinazione in cui iniziare la ricezione del contenuto copiato.The position in the target array at which to start receiving the copied content.

Esempio

Nell'esempio di codice riportato di seguito viene illustrato CopyTo come utilizzare il metodo MenuItemBinding per copiare gli oggetti dalla raccolta in una matrice.The following code example demonstrates how to use the CopyTo method to copy the MenuItemBinding objects from the collection to an array. La matrice viene quindi iterata per visualizzare le proprietà degli MenuItemBinding oggetti.The array is then iterated through to display the properties of the MenuItemBinding objects. Per il corretto funzionamento di questo esempio, è necessario copiare i dati XML di esempio seguenti in un file denominato map. XML.For this example to work correctly, you must copy the sample XML data below to a file named Map.xml.


<%@ 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)
  {
    // Declare an array of MenuItemBinding objects.
    MenuItemBinding[] bindingArray = new MenuItemBinding[NavigationMenu.DataBindings.Count];

    // Use the CopyTo method to copy the MenuItemBinding objects 
    // from the collection into the array.
    NavigationMenu.DataBindings.CopyTo(bindingArray, 0);

    // Display the properties of the MenuItemBinding objects 
    // in the Bindings collection.
    Message.Text = "The properties of the MenuItemBinding objects are: <br/><br/>";

    foreach (MenuItemBinding binding in bindingArray)
    {

      Message.Text += "DataMember=" + binding.TextField + 
        " Depth=" + binding.Depth.ToString() + "<br />";

    }
  }
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemBindingCollection CopyTo Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemBindingCollection CopyTo Example</h3>
    
      <asp:menu id="NavigationMenu"
        staticdisplaylevels="2"
        staticsubmenuindent="10" 
        orientation="Vertical"
        target="_blank"
        datasourceid="MenuSource"
        runat="server">
        
        <DataBindings>
          <asp:menuitembinding datamember="MapHomeNode" 
            depth="0"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="1"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="2"
            textfield="title" 
            navigateurlfield="url"/>
        </DataBindings>
                
      </asp:menu>
      
      <hr/>
      
      <asp:label id="Message" 
        runat="server"/>
      
      <asp:xmldatasource id="MenuSource"
        datafile="Map.xml"
        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)

    ' Declare an array of MenuItemBinding objects.
    Dim bindingArray(NavigationMenu.DataBindings.Count - 1) As MenuItemBinding

    ' Use the CopyTo method to copy the MenuItemBinding objects 
    ' from the collection into the array.
    NavigationMenu.DataBindings.CopyTo(bindingArray, 0)

    ' Display the properties of the MenuItemBinding objects 
    ' in the Bindings collection.
    Message.Text = "The properties of the MenuItemBinding objects are: <br/><br/>"

    Dim binding As MenuItemBinding
    
    For Each binding In bindingArray
    

      Message.Text &= "DataMember=" & binding.TextField & _
        " Depth=" & binding.Depth.ToString() & "<br />"

    Next
    
  End Sub
    
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemBindingCollection CopyTo Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemBindingCollection CopyTo Example</h3>
    
      <asp:menu id="NavigationMenu"
        staticdisplaylevels="2"
        staticsubmenuindent="10" 
        orientation="Vertical"
        target="_blank"
        datasourceid="MenuSource"
        runat="server">
        
        <DataBindings>
          <asp:menuitembinding datamember="MapHomeNode" 
            depth="0"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="1"
            textfield="title" 
            navigateurlfield="url"/>
          <asp:menuitembinding datamember="MapNode" 
            depth="2"
            textfield="title" 
            navigateurlfield="url"/>
        </DataBindings>
                
      </asp:menu>
      
      <hr/>
      
      <asp:label id="Message" 
        runat="server"/>
      
      <asp:xmldatasource id="MenuSource"
        datafile="Map.xml"
        runat="server"/>        

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

Di seguito sono riportati i dati di esempio della mappa del sito per l'esempio precedente.The following is sample site map data for the previous example.

<MapHomeNode url="~\Home.aspx"

title="Home"

description="Home">

<MapNode url="~\Music.aspx"

title="Music"

description="Music">

<MapNode url="~\Classical.aspx"

title="Classical"

description="Classical"/>

<MapNode url="~\Rock.aspx"

title="Rock"

description="Rock"/>

<MapNode url="~\Jazz.aspx"

title="Jazz"

description="Jazz"/>

</MapNode>

<MapNode url="~\Movies.aspx"

title="Movies"

description="Movies">

<MapNode url="~\Action.aspx"

title="Action"

description="Action"/>

<MapNode url="~\Drama.aspx"

title="Drama"

description="Drama"/>

<MapNode url="~\Musical.aspx"

title="Musical"

description="Musical"/>

</MapNode>

</MapHomeNode>

Commenti

Usare il CopyTo metodo per copiare il contenuto della raccolta nella matrice in base zero specificata.Use the CopyTo method to copy the contents of the collection into the specified zero-based array. Gli elementi vengono copiati a partire dall'indice specificato della matrice di destinazione.Items are copied starting at the specified index of the target array. Con la matrice, è quindi possibile usare la sintassi di matrice per accedere agli elementi MenuItemBindingCollection nell'oggetto.With the array, you can then use array syntax to access the items in the MenuItemBindingCollection object.

In alternativa, è anche possibile usare il GetEnumerator metodo per creare un enumeratore che può essere usato per accedere agli elementi nella raccolta.As an alternative, you can also use the GetEnumerator method to create an enumerator that can be used to access the items in the collection.

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