The example shows how you can customize the drag and drop feature of KoolTreeView and make tree reorder the nodes.
<?php
require $KoolControlsFolder."/KoolTreeView/kooltreeview.php";
$treeview = new KoolTreeView("treeview");
$treeview->scriptFolder = $KoolControlsFolder."/KoolTreeView";
$treeview->imageFolder=$KoolControlsFolder."/KoolTreeView/icons";
$treeview->styleFolder = "default";
$root = $treeview->getRootNode();
$root->text = "Please order the node";
$root->expand=true;
$root->image="ada.gif";
$treeview->selectEnable = false;
$treeview->width="200px";
$treeview->DragAndDropEnable=true;
$treeview->showLines = true;
$treeview->Add("root","node1","Node 1",false,"square_blueS.gif");
$treeview->Add("root","node4","Node 4",false,"square_greenS.gif");
$treeview->Add("root","node9","Node 9",false,"square_redS.gif");
$treeview->Add("root","node8","Node 8",false,"square_redS.gif");
$treeview->Add("root","node7","Node 7",false,"square_greenS.gif");
$treeview->Add("root","node10","Node 10",false,"square_redS.gif");
$treeview->Add("root","node3","Node 3",false,"square_blueS.gif");
$treeview->Add("root","node2","Node 2",false,"square_blueS.gif");
$treeview->Add("root","node6","Node 6",false,"square_greenS.gif");
$treeview->Add("root","node5","Node 5",false,"square_greenS.gif");
?>
<form id="form1" method="post">
<div style="padding:10px;">
<?php echo $treeview->Render();?>
</div>
<script type="text/javascript">
treeview.registerEvent("OnBeforeDrop",function(sender,arg){
var parentid = treeview.getNode(arg.NodeId).getParentId();
var childids = treeview.getNode(parentid).getChildIds();
var posdrag=0;posdrop = 0;
for(var i=0;i<childids.length;i++)
{
if (childids[i]==arg.NodeId)
{
posdrop = i;
}
if (childids[i]==arg.DragNodeId)
{
posdrag = i;
}
}
if (posdrag<posdrop)
{
//Drag from above node to below node
treeview.getNode(arg.DragNodeId).moveToBelow(arg.NodeId);
}
else
{
//Drag from below node to node above
treeview.getNode(arg.DragNodeId).moveToAbove(arg.NodeId);
}
return false;//Cancel default attaching node behavior
});
</script>
</form>
KoolTreeView - Great PHP TreeViewFullVersion 3.0.0.2 released on 25/11/2016