How to pass a structure/array of structure as input parameter in a webservice

Hi Team,

I am trying to create a webservice in powerbuilder .net( pb 12.5.1) . As this webservice will be used by external world to access some of data on basis of some input paarameter.

So can i use array of structure as input parameter to a webservice ? If no, then how can i pass a result set ( mora then 1 row with more than one column)

as an argument to the webservice.

Regards

Subrat