Hi Jack,
I went through the procedure you mentioned in the above link . But here the both links i.e-"Creating a Data-Driven Web Test against a Web Service", "How to: Add an XML File Data Source to a Web Performance Test" are
suggesting for How to do the scripting for .net web services application with one XML file, i did not get any info that how i will do the scripting in the web performance test for any application which has 100's of XMLs and it needs to pick one new xml
at each request.
I am reposting my queries in forum that you have suggested.