Pass DataTable or Dataset as Parameter to WebMethod of WebService in ASP.Net

Hi,

can datatable pass to web service as input parameter? i have a scenario to pass values as datatable to web service. eg as follows

when Invoice or Bill is entered, I want to send the entered data as datatable to web service to insert into another application.

help me how to achieve this or suggest me how to do this if datatable is not possible.

Regards,

Ameen