MenuItemCollection.Add Method (MenuItem)
.NET Framework (current version)
Appends the specified MenuItem object to the end of the current MenuItemCollection object.
Assembly: System.Web (in System.Web.dll)
Parameters
- child
-
Type:
System.Web.UI.WebControls.MenuItem
The MenuItem to append to the end of the current MenuItemCollection.
| Exception | Condition |
|---|---|
| ArgumentNullException | child is null. |
The following code example demonstrates how to use the Add method to programmatically add a MenuItem object to a MenuItemCollection object.
<%@ 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>
.NET Framework
Available since 2.0
Available since 2.0
Show:
