Databases
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    <p>The following approach uses a <code>DataTable</code> list to address a dynamic number of datatables. The code produces a <code>List</code> of <code>IEnumerable&lt;object&gt;</code>. This example assumes that the column value that will be added to the final item structure for each other datatable in the join lies in the same position (in our case I used <code>row2[1]</code>, so I take the second position).</p> <p><strong>[EDIT]</strong> I also added an example of joining more than one column / joined table</p> <pre><code> // create the collection List&lt;DataTable&gt; dts = new List&lt;DataTable&gt;(); // add some test datatables for (int i = 0; i &lt; 10; i++) { var dt = new DataTable(); dt.TableName = i.ToString(); dt.Columns.Add("ID"); dt.Columns.Add("col" + i.ToString()); dt.Columns.Add("otherCol" + i.ToString()); dt.Rows.Add(1, "x1" + i.ToString(), DateTime.Now); dt.Rows.Add(2, "x2" + i.ToString(), DateTime.Now); dts.Add(dt); } // get the ID column position in the first table var idPosition = dts[0].Columns["ID"].Ordinal; // used for storing the results var results = new List&lt;IEnumerable&lt;object&gt;&gt;(); // add the columns from the first table results = dts[0].AsEnumerable() .Select(j =&gt; j.ItemArray.AsEnumerable()).ToList(); // join all tables dts.Skip(1).ToList().ForEach((list) =&gt; { results = results .AsEnumerable() .Join( list.AsEnumerable(), x =&gt; x.Skip(idPosition).First(), x =&gt; x["ID"], // select the second column (row1, row2) =&gt; row1.Concat(new[] { row2[1] })) // replace the preceding line with // the following one to select the second and the third column //(row1, row2) =&gt; row1.Concat(new[] { row2[1], row2[2] })) .ToList(); }); </code></pre>
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    1. POHow to Loop through Datatable in Linq?
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    1. USAlex Filipovici
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Guidance
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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