wrap prometheus menu in a custom server control

[Beth Krawczuk]

Hi,
I need to wrap the prometheus menu control in a custom server control so that developers have limited control over changing styles, features, etc.

How would I go about creating the equivalent of this:
<telerik:radmenu id="mainRadMenu" runat="server" enableembeddedskins="false" enabletheming="true">
   <Items>
    <telerik:RadMenuItem Text="About us" AccessKey="U">
     <Items>
      <telerik:RadMenuItem Text="Mission Statement">
      </telerik:RadMenuItem>
      <telerik:RadMenuItem Text="Strategic Plan">
      </telerik:RadMenuItem>
      <telerik:RadMenuItem Text="Executive Bios">
      </telerik:RadMenuItem>
      <telerik:RadMenuItem Text="Contact Us">
      </telerik:RadMenuItem>
     </Items>
    </telerik:RadMenuItem>
   </Items>
  </telerik:radmenu>

This is as far as I’ve gotten (I’m stuck on creating the internal “telerik:RadMenuItem”s:

[DefaultProperty("Text")]

      [ToolboxData("<{0}:LISMenu runat=server></{0}:LISMenu>")]

      public class LISMenu : Telerik.Web.UI.RadMenu

      {

            protected void LISMenu_Init(object sender, System.EventArgs e)

            {

                  base.EnableEmbeddedSkins = false;

                  base.EnableTheming = true;

            }

             protected override void Render(System.Web.UI.HtmlTextWriter writer)

            {

                  base.Render(writer);

            }

      }

Thank you so much for your help,
Beth

[Atanas Korchev]

Hello Beth Krawczuk,

You can instantiate menu items in the OnInit or OnLoad methods (you need to override them).

protected override void OnInit(EventArgs e)
{
    base.OnInit(e);
    base.EnableEmbeddedSkins = true;
    base.EnableTheming = true;
}

protected override void OnLoad(EventArgs e)
{
    base.OnLoad(e);
    if (!Page.IsPostBack)
    {
       RadMenuItem item = new RadMenuItem();
       Items.Add(item);
    }
}

Regards,
Albert
the Telerik team

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[Beth Krawczuk]

Actually I didn't explain that well,
I'm trying to create a custom control that looks like this example:

<myCtrl:MyMenu id="mainMyMenu" runat="server">
    <MainMenuItem Text=” Main menu item 1”></MainMenuItem>
    <MainMenuItem Text=” Main menu item 2”></MainMenuItem>
    <MainMenuItem Text=” Main menu item 3”>
        <SubMenuItem Text=”Sub menu item 1”></SubMenuItem>
    </MainMenuItem>
</ myCtrl:MyMenu>

So I'm not sure how to expose the "<Items>" and the "<telerik:RadMenuItem" properties or child controls so that I can define them and leave little left for the developer.

Thank you so much for your time,
Beth

[Beth Krawczuk]

[Beth Krawczuk]

[Beth Krawczuk]

[Beth Krawczuk]

[Beth Krawczuk]

[Beth Krawczuk]

Oops, I'm not sure why this posted a bunch of times.
Sorry,
Beth

[Atanas Korchev]

Hello Beth Krawczuk,

The Items property of the menu is public so it should be already exposed. You can also create a new property which can hold your items (if you plan to inherit the RadMenuItemCollection class). In that case you should also override a few other methods. Here is a quick code snippet:

public class MyRadMenuItemCollection : RadMenuItemCollection
{
    public MyRadMenuItemCollection (Control parent) : base(parent) { }

    public new MyRadMenuItem this[int index]
    {
        get
        {
            return (MyRadMenuItem) base[index];
        }
        set
        {
            base[index] = value;
        }
    }
}

public class MyRadMenuItem : RadMenuItem
{
}

public class MyRadMenu : RadMenu
{
    protected internal override ControlItem CreateItem()
    {
        return new MyRadMenuItem();
    }

    protected override ControlItemCollection CreateChildItemCollection()
    {
        return new MyRadMenuItemCollection(this);
    }

    [DefaultValue(null)]
    [MergableProperty(false)]
    [PersistenceMode(PersistenceMode.InnerProperty)]
    public MyRadMenuItemCollection MyItems
    {
        get
        {
            return (MyRadMenuItemCollection) base.Items;
        }
    }
}

Regards,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Beth Krawczuk]

You guys ROCK!
Thank you very much,
Beth