what s the best way to store tabular data from web services in the session

I invoke a web service, that returns tabular data, example: the list of contracts. Each contract is a representation of a row. So it s like a table of let s say 1000 rows, but in xml format.

If my intention is to display those data in a gridview, but I want to store the date for other means, like if the user goes back to the page, I don t want to invoke the web service again. Plus, i need to implement search capabilities, where the user can search for specific contract, or a set of contracts amongst those returned whole list of contracts from the web service.

All This  is just to say that i need to store the received data in memory for further search capabilities. Keep in mind, pls, that I will never update the data, only read mode.

What s the best way to store the receved tabular data from the web service in memeory?

Should I use objectdatasource, xmldatasource, dataset, typed dataset, leave the data in xml file,...etc? what s good option for my purpose?

 

Thanks a lot.

perform some search amongst all those rows

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