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POLINQ Entity Framework - COUNT AND QUERY
 

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    <pre><code>edmx file: OrderData: ORDERID SHIPMENT DRIVER_ID RECEIVE_NAME </code></pre> <p>we need to build a table and print for each DRIVER_ID first column:DRIVER_ID second column: how many rows with this DRIVER_ID third column: how many rows with this DRIVER_ID and has RECEIVE_NAME not null</p> <p>please show me how it can be done...i only managed to print a getquery:(</p> <pre><code> SERVER.CS public class OrderDataRepository : BaseRepository&lt;OrderData&gt; { public class OrderDataResults { public long DriverId { get; set; } public int OrderCount { get; set; } public int OrderCountWhereNameIsNotNull { get; set; } } public class OrderViewRepository : BaseRepository&lt;OrderData&gt; { public List&lt;OrderDataResults&gt; GetOrderDataResults() { return GetQuery(). Where(x =&gt; x.SHIPMENT != null). GroupBy(o =&gt; o.DRIVER_ID). Select(g =&gt; new OrderDataResults { DriverId = g.Key, OrderCount = g.Count(), OrderCountWhereNameIsNotNull = g.Count(o =&gt; o.RECEIVE_NAME != null) }).ToList(); } } CLIENT.ASPX.CS public partial class Control : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { var rep = new OrderViewRepository(); List&lt;OrderDataResults&gt; results = GetOrderDataResults(); **Error 12 The name 'GetOrderDataResults' does not exist in the current context Error 11 The type or namespace name 'OrderDataResults' could not be found (are you missing a using directive or an assembly reference?) ** DataViewer.DataSource = results; DataViewer.DataBind(); } } WEBPAGE.ASPX &lt;form id="Form1" runat="server"&gt; &lt;asp:GridView runat="server" ID="DataViewer"&gt; &lt;/asp:GridView&gt; &lt;/form&gt; </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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