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    <p><a href="http://www.ok-soft-gmbh.com/jqGrid/AddRowInTreeGrid.htm" rel="nofollow noreferrer">The demo</a> shows how to use <a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki:treegrid#methods" rel="nofollow noreferrer">addChildNode</a> method to add tree node. I added in the JSON data which you posted the <code>"loaded":true</code> part because I use in the test no server components and I want to load the treegrid at once.</p> <p>To show that you should be very careful with ids of the new added row I added two buttons in the demo: "Insert tree node" and "Insert tree node with unique rowid". The first button use the id="1113" from the data which you posted. One click on the button work correct. the second click will insert rows having id duplicates which will be an error. The error you can see different in different web browsers. The second button use <code>$.jgrid.randId()</code> to generate unique rowid. It is probably not an option in your scenario, but it works perfect in case of <em>local</em> tree grid (like in my demo).</p> <p>Another problem is that you use "parent":"0" in your demo for the root elements. Correct will be <code>"parent":null</code> or <code>"parent":"null"</code> (see <a href="https://stackoverflow.com/questions/7330572/sorting-of-jqgrid-v4-1-2-treegrid-not-working-with-ajacency-model/7332627#7332627">the answer</a>). Moreover the property with the name <code>"parent_id"</code> will be ignored. I removed from the demo some settings, so that local sorting can be used in the treegrid.</p>
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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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