Salve,
ricevo questo errore dalla pagina:
'SOAPSDK2' is an undeclared namespace. Line 3, position 22.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Xml.XmlException: 'SOAPSDK2' is an undeclared namespace. Line 3, position 22.

potrei aggiungere il namespace con la metodologia descritta?

Grazie