How To Display Hierarchical Data Using Nested Repeater Controls and Visual C# .NET

Just found a piece of functionality which I’ve never noticed before, for populating nested Repeaters, without doing so in the code behind with a “OnDataBound” Event.

It’s as simple as just setting the DataSource on the child repeater, to a property of the parent repeaters DataItem.  For example;

<asp:Repeater ID="BookRepeater" runat="server" onitemdatabound="bibRepeater_ItemDataBound">
         <h1><%# DataBinder.Eval(Container.DataItem, "BookTitle")%></h1>
         <asp:Repeater ID="AuthorsRepeater" runat="server" DataSource='<%# ((Book)Container.DataItem).Authors %>'>
         <HeaderTemplate><h5>Author: </HeaderTemplate>
                 <a href='/AuthorDetails.aspx?id=<%# DataBinder.Eval(Container.DataItem, "Id")%>' title="<%# DataBinder.Eval(Container.DataItem, "FirstName")%> <%# DataBinder.Eval(Container.DataItem, "LastName")%>"><%# DataBinder.Eval(Container.DataItem, "FirstName")%> <%# DataBinder.Eval(Container.DataItem, "LastName")%></a>
             <SeparatorTemplate>, </SeparatorTemplate>

You may need to add a declaration to the namespace in which your entities reside, at the top of your aspx file, like this;

<%@ Import Namespace="Hachette.Entities.Orchard" %>

full details on MSDN; How To Display Hierarchical Data by Using Nested Repeater Controls and Visual C# .NET.

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