You can set some properties to improve the loading performance.
$('#tg').treegrid({
singleSelect: false,
ctrlSelect: true,
checkOnSelect: false,
scrollOnSelect: false
});
Please download the patch from
http://www.jeasyui.com/download/downloads/jquery-easyui-1.5.1-patch.zipThe example below shows the example that displays 1000 nodes in treegrid. It's fact to shift select all the nodes.
http://code.reloado.com/asamil3/edit#javascript,html