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    <p>On example of <a href="http://www.ok-soft-gmbh.com/jqGrid/Sam1.htm" rel="nofollow noreferrer">this demo</a> you can see the time of loading 1500 rows for your grid in case of usage of <code>gridview: true</code>.</p> <p>The most performance problem of your example are inside of <code>loadComplete</code> function. If you do need to make some modifications on the grid you should use jQuery to manipulate the grid contain. The best performance you can archive if you use DOM elements of the grid directly like in the example</p> <pre><code>loadComplete: function() { var i=0, indexes = this.p._index, localdata = this.p.data, rows=this.rows, rowsCount = rows.length, row, rowid, rowData, className; for(;i&lt;rowsCount;i++) { row = rows[i]; className = row.className; //if ($(row).hasClass('jqgrow')) { // test for standard row if (className.indexOf('jqgrow') !== -1) { rowid = row.id; rowData = localdata[indexes[rowid]]; if (rowData.amount !== "200") { // if (!$(row).hasClass('ui-state-disabled')) { if (className.indexOf('ui-state-disabled') === -1) { row.className = className + ' ui-state-disabled'; } //$(row).addClass('ui-state-disabled'); } } } } </code></pre> <p>You can see the corresponding example live <a href="http://www.ok-soft-gmbh.com/jqGrid/Sam2.htm" rel="nofollow noreferrer">here</a>.</p> <p>In the implementation of <code>loadComplete</code> function I use the fact, that jqGrid having <code>loadonce:true</code> parameter use internal parameters <code>_index</code> and <code>data</code> which can be used to access the contain of the grid. In the example I disabled the rows which not contain "200" in the <code>amount</code> column.</p> <p><strong>UPDATED</strong>: <a href="https://stackoverflow.com/a/10531680/315935">The answer</a> describes how to use <code>rowattr</code> callback to simplify the solution and to have the best performance (in case of <code>gridview: true</code> of cause).</p>
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    1. CO@Oleg- Thank you very much oleg. now I got the base line from **The best performance you can archive if you use DOM elements** phrase. examples are really helpful. Thanks for your knowledge sharing and the kind guidance.Greatly appreciate your time & the effort.
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    2. CO@Sam: You are welcome!
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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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