KoolGrid supports rows selection persistence feature. The selected rows will be persisted after postback and callback. In above example, you can try to select rows and navigate back and forth among pages.
span style="color: #ff0000;">"/KoolAjax/koolajax.php";
$koolajax->scriptFolder = $KoolControlsFolder."/KoolAjax""/KoolGrid/koolgrid.php""/KoolGrid/ext/datasources/MySQLiDataSource.php"//This $db_con link has been created inside KoolPHPSuite/Resources/runexample.php
$ds->SelectCommand = "select customerNumber,customerName,phone,city from customers""grid");
$grid->scriptFolder = $KoolControlsFolder."/KoolGrid";
$grid->styleFolder="default""customerNumber"; // Need to set to get selection.
$grid->Width = "655px"// Allow multi row selecting
//Keep selected records cross page.
//Get selected keys after grid processing
"form1" method="post""padding-top:10px;">
<input type="submit" value = "Submit" />
</div>
<div style="padding-top:10px;""You selected rows with <b>customerNumber = [ ""customerNumber"" ,"" ]</b>"
KoolGrid - Powerful PHP GridFullVersion 5.7.0.1 released on 05/19/2017