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MenuItemCollection.Clear Yöntem

  • Başvuru

Tanım

Ad Alanı:
System.Web.UI.WebControls
Bütünleştirilmiş Kod:
System.Web.dll

Geçerli MenuItemCollection nesneden tüm öğeleri kaldırır.

public:
 void Clear();
public void Clear ();
member this.Clear : unit -> unit
Public Sub Clear ()

Örnekler

Aşağıdaki kod örneği, bir denetimin Clear koleksiyonundan Items tüm öğeleri kaldırmak için yönteminin Menu nasıl kullanılacağını gösterir.


<%@ 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)
    {
      // Use the Clear method to remove all 
      // menu items from the Items collection
      // of the Menu control.
      NavigationMenu.Items.Clear();

      // 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>MenuItemCollection Clear Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemCollection Clear 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
    
      ' Use the Clear method to remove all 
      ' menu items from the Items collection
      ' of the Menu control.
      NavigationMenu.Items.Clear()
      
      ' 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>MenuItemCollection Clear Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      <h3>MenuItemCollection Clear Example</h3>
    
      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank" 
        runat="server"/>

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

Açıklamalar

Clear Geçerli MenuItemCollection nesneden her MenuItem nesneyi kaldırmak için yöntemini kullanın.

Not

Tek bir düğümü koleksiyondan kaldırmak için veya RemoveAt yöntemini kullanmayı Remove göz önünde bulundurun.

Şunlara uygulanır

Ayrıca bkz.