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    <p>First, the statement <code>$("#jqGridElement").trigger('GridUnload')</code> do nothing because there are no event with the name <code>'GridUnload'</code>. The only event currently supported by jqGrid is <code>'reloadGrid'</code>. The event support additional parameters (see <a href="https://stackoverflow.com/questions/3807623/jqgrid-paging-question/3808014#3808014">here</a>) which can be interesting for you. The call <code>$("#jqGridElement").trigger("reloadGrid", [{current:true}]);</code> will refresh the grid, but the selection which could make the user will be not changed.</p> <p>If you need call <code>GridUnload</code> in "new style API" it should looks like</p> <pre><code>$("#jqGridElement").jqGrid('GridUnload'); </code></pre> <p>After you call <code>GridUnload</code> method the <code>table</code> element which is basis of jqGrid will be recreated. So if you saved the <code>$("#jqGridElement")</code> in a variable (<code>var gridObj = $("#jqGridElement")</code> for example) you should refresh the value (with the assignment <code>gridObj = $("#jqGridElement")</code>).</p> <p>Now about your main question. The method <code>GridUnload</code> is useful in the case if you need add new column to the grid or create on the place of old grid <em>absolutely another</em> grid. (see <a href="https://stackoverflow.com/questions/4232038/jqgrid-add-new-column/4232168#4232168">the answer</a> or <a href="https://stackoverflow.com/questions/4232430/jqgrid-reload-grid/4233000#4233000">this one</a> as an example). If you need to add one row of data to the existing grid you can use <a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki:retrieving_data#array_data" rel="nofollow noreferrer">addRowData</a> for example.</p> <p>What can be really important to you to understand is the usage of ids for every row (<code>&lt;tr&gt;</code> element). If you don't want to manage ids yourself you can use <code>undefined</code> as the <code>rowid</code> in the <a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki:retrieving_data#array_data" rel="nofollow noreferrer">addRowData</a> method. In the case the <code>$.jgrid.randId()</code> method will be used internally to generate unique id for the new row.</p>
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    1. COThanks for another great answer. I hope someone finds them later on and saves them the time I've spent trying to figure this stuff out.
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      1. USAdam Rackis
    2. CO@Adam Rackis: You are welcome! I wanted before to write more information about the filling of grid, but I decide not make the answer too long. Do you load the "JSON" data from the server or you construct the `tableSrc` object dynamically on the client side?
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    3. COEventually the user will click a button, post to a web service, get a json object back, which I'll then want the grid to refresh against. That's what I was simulating by adding a single new row; eventually I'll be clearing and refreshing the entire rows array and telling the grid to reload. Thanks to you I think I know how to make this happen.
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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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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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