Get sub projects Project Server Interface

Question

Is it possible to retrieve list of subprojects using PSI (project server interface)? I found Relations datatable in ProjectDataSet but it is always empty. Maybe there is an easier way to get guids of subprojects than using PSI?

Answer 1

MSDN says that Relations table is used to map tables in dataset, not projects. http://msdn.microsoft.com/en-us/library/websvcproject.projectdataset.relations_di_pj14mref.aspx. Try to check Task data table. It will contain summary tasks for each sub project. Maybe it also contains sub project id.