KoolGrid support column resizing. To enable this feature you can set $AllowResizing property to true. You can set this property at KoolGrid level, GridTableView level or at Column level.
<?php
require $KoolControlsFolder."/KoolAjax/koolajax.php";
$koolajax->scriptFolder = $KoolControlsFolder."/KoolAjax";
require $KoolControlsFolder."/KoolGrid/koolgrid.php";
require $KoolControlsFolder."/KoolGrid/ext/datasources/MySQLiDataSource.php";
$ds = new MySQLiDataSource($db_con);//This $db_con link has been created inside KoolPHPSuite/Resources/runexample.php
$ds->SelectCommand = "select orderNumber,orderDate,status,comments from orders";
$ds->UpdateCommand = "update orders set orderDate='@orderDate', status='@status' where orderNumber=@orderNumber";
$grid = new KoolGrid("grid");
$grid->scriptFolder = $KoolControlsFolder."/KoolGrid";
$grid->styleFolder="default";
$grid->AjaxEnabled = true;
$grid->DataSource = $ds;
$grid->MasterTable->Pager = new GridPrevNextAndNumericPager();
$grid->Width = "655px";
$grid->AllowResizing = true;
$column = new GridBoundColumn();
$column->DataField = "orderNumber";
$column->HeaderText = "Order Number";
$column->ReadOnly = true;
$column->Align = "center";
$grid->MasterTable->AddColumn($column);
$column = new GridDateTimeColumn();
$column->DataField = "orderDate";
$column->HeaderText = "Date";
$column->FormatString = "M d, Y";
$column->Align = "center";
$grid->MasterTable->AddColumn($column);
$column = new GridDropDownColumn();
$column->DataField = "status";
$column->HeaderText = "Status";
$column->Align = "center";
$column->AddItem("In Process");
$column->AddItem("On Hold");
$column->AddItem("Disputed");
$column->AddItem("Resolved");
$column->AddItem("Shipped");
$grid->MasterTable->AddColumn($column);
$column = new GridBoundColumn();
$column->DataField = "comments";
$column->HeaderText = "Comments";
$column->HeaderStyle->Align = "center";
$column->Wrap = true;
$grid->MasterTable->AddColumn($column);
$grid->Process();
?>
<form id="form1" method="post">
<?php echo $koolajax->Render();?>
<div style="padding-top:10px;">
<?php echo $grid->Render();?>
</div>
</form>
KoolGrid - Powerful PHP GridFullVersion 5.7.0.0 released on 25/11/2016