LookupTableDataSet.LookupTableTreesRow Class
Represents the value of one node in a lookup table tree.
Service reference: http://ServerName:32843/[Project Service Application GUID]/PSI/LookupTable.svc
Web service reference: http://ServerName/ProjectServerName/_vti_bin/PSI/LookupTable.asmx?wsdl
For an example, see Walkthrough: Creating a Hierarchical Lookup Table.
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