MenuItemCollection.Count Property

 

Gets the number of menu items contained in the current MenuItemCollection object.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

Public ReadOnly Property Count As Integer

Property Value

Type: System.Int32

The number of menu items contained in the current MenuItemCollection object.

Use the Count property to determine the number of items in a MenuItemCollection object. This property is commonly used when iterating through a collection to determine the upper bound of the collection. The Count property is also commonly used to determine whether a collection is empty.

The following code example demonstrates how to use the Count property to determine the number of menu items in a MenuItemCollection object.


<%@ 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 NavigationMenu_MenuItemClick(ByVal sender As Object, ByVal e As MenuEventArgs)

    ' Use the Count property to determine the number of submenu 
    ' items contained in the selected menu item.
    Message.Text = "The " & e.Item.Text & " menu item contains " & _
    e.Item.ChildItems.Count.ToString & " submenu items."

  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>MenuItemCollection Count Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <h3>MenuItemCollection Count Example</h3>

      Select an item from the menu.
      <br/><br/>

      <asp:menu id="NavigationMenu"
        orientation="Vertical"
        target="_blank"
        onmenuitemclick="NavigationMenu_MenuItemClick"  
        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>

      <hr/>

      <asp:label id="Message" 
        runat="server"/>

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

.NET Framework
Available since 2.0
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