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POHow to create category and list in one query with Linq
 

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  1. POHow to create category and list in one query with Linq
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    <p>I want to create something like this using a <code>DataList</code> and Flow markup:</p> <pre><code>|-----------------------| | Title | |-----------------------| | [x] Title | | [x] Title | | ... | ------------------------- </code></pre> <p>I have a table (modeled in Linq2Sql) <code>Foo</code> that has these fields</p> <pre><code>int id; int? parentId; string title; Foo Parent; EntitySet&lt;Foo&gt; Children; </code></pre> <p>Now, when there is a null parent, it means it's a top level category, and if the parent has a value, it's part of the category list.</p> <p>I have created a <code>DataList</code>, and used a <code>LinqDataSource</code> with a query that looks like this:</p> <pre><code>&lt;asp:LinqDataSource ID="LinqDataSource1" runat="server" ContextTypeName="MyNameSpace.FooDataContext" Select="new (Title, Children)" TableName="Foo" Where="ParentID = NULL"&gt; &lt;/asp:LinqDataSource&gt; &lt;asp:DataList ID="FooList" runat="server" DataSourceID="LinqDataSource1" BorderColor="Black" BorderWidth="1px" RepeatLayout="Flow"&gt; &lt;ItemTemplate&gt; &lt;asp:Label ID="TitleLabel" runat="server" Text='&lt;%# Eval("Title") %&gt;' /&gt; &lt;br /&gt; &lt;asp:Repeater ID="Repeater1" runat="server" DataSourceID="&lt;%# Eval("Children") %&gt;"&gt; &lt;ItemTemplate&gt; &lt;asp:CheckBox ID="Checks" Text="&lt;%# Eval("Title") %&gt;" runat="server" /&gt; &lt;/ItemTemplate&gt; &lt;/asp:Repeater&gt; &lt;/ItemTemplate&gt; &lt;/asp:DataList&gt; </code></pre> <p>This obviously doesn't work. <strong>How can I utilize the Children collection in a repeater of a DataList item?</strong></p>
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    1. USErik Funkenbusch
    1. USErik Funkenbusch
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