Access Request/Response XML -ASP.NET Web Services

Question

Hi,

Currently I am calling web methods exposed by our vendor and directly get the result. Is there any way I can access the actual soap XML used in this transaction??

I want to get those XML through application so that I can same request/response XML to our database for each transaction.

This functionality sounds very basic and simple for it be not available through default framework classes, but I am unable to find any way for last couple of days.

Any suggestions?????

Thanks.