i have loaded this xml file treegrid_sample.xml

i have loaded this xml file treegrid_sample.xml (from your samples) but the treegrid that resulted only contained ‘Total’ (first row)the imbricated rows were not displayed Am i missing something
 in the configuration of treegrid?

It hard to say without looking at used code, please be sure that dhtmlxtreegrid.js included in project and one of columns has “tree” type
Please use default treegrid examples as a sample.