Passing DataTable to a Web Service

[goal2007]

When i pass my DataTable to my web service i get an error:

Error 2 Argument '1': cannot convert from 'System.Data.DataTable' to 'DataOutputWebRef.UpdatingProcessingTable'


Note:
DataOutputWebRef : is the name of my web reference
UpdatingProcessing: is a web method in my web service
public void UpdatingProcessing:(DataTable myTable)
{

}

Thanks in advance for your help

[Dushant]

i am not able to do connection between Mobile computers and servers

[Floydan]

Do you have any code I can have a look at to see if I can find the error?