====== BuildHierarchy ======
The BuildHierarchy() function builds a tree structure over a list of nodes of identical type that are hierarchically related. \\
The relevant nodes (1st parameter) must have a key field (2nd parameter) that is referenced by another field within the child node (3rd parameter). The function returns a tree with the following structure:\\
==== Syntax: ====
BuildHierarchy('Node', 'Key'.'Key of the parent node')
==== Sample: ====
BuildHierarchy('//SG_33', '@DE_1082'.'LIN/DG_C829/@DE_1082')
{{:images:sign_warning.png?nolink|}} Note: Alternate solution [[howtos:buildhierarchwithsplittoarray|]]