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The structure of the RadPanelBar control is as follows:

PanelBar Structure

The panel bar consists of a hierarchy of items. The items on one level are exposed when the parent item on the previous level is expanded. Each item is represented by a RadPanelItem instance.

  • At the top level are the root items. These items are always visible. They are available using the Items property of the panel bar (RadPanelBar.Items).

  • Each root item may have, nested within it, a set of child items. Children of the root items are considered level 1 items. They are available using the Items property of the root item (RadPanelItem.Items)

  • Child items may have, nested within them, their own sets of child items. Children of level 1 items are considered level 2 items; children of level 2 items are considered level 3 items; and so on.

One item in the panel bar can be designated as the Selected item. This is the last item that the user clicks, and has a distinct appearance from the other items at its level.

If the items are created at design time, the hierarchy is reflected in the ASP.NET declaration of the panel bar:

<telerik:RadPanelBar RenderMode="Lightweight" id="RadPanelBar1" runat="server" skin="Outlook">  
        <telerik:RadPanelItem runat="server" Text="Mail">      
                <telerik:RadPanelItem runat="server" Text="In Box" />        
                <telerik:RadPanelItem runat="server" Text="Deleted Items" />        
                <telerik:RadPanelItem runat="server" Text="Sent Items" />      
        <telerik:RadPanelItem runat="server" Text="Calendar">      
                <telerik:RadPanelItem runat="server">          
                    <telerik:RadCalendar RenderMode="Lightweight" ID="RadCalendar1" runat="server" Skin="Outlook" />          
        <telerik:RadPanelItem runat="server" Text="Notes">      
                <telerik:RadPanelItem runat="server" Text="My Notes" />         
                <telerik:RadPanelItem runat="server" Text="Shared Notes" />         
                <telerik:RadPanelItem runat="server" IsSeparator="True" Text="&lt;hr&gt;" />         
                <telerik:RadPanelItem runat="server" Text="Archive" />           

See Also

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