Dynamic ConnectionString For SSRS From C#.Net Application

Hi,

I am using ASP.Net 3.5 and using SSRS - 2005 for my application. I have couple of server reports. For a better maintanence I would like to maintain the ConnectionString from my ASP.Net application to the SSRS. I mean, how should I pass connection string to the SSRS from my application. I know there is a way by using WebService, we can pass the Connection String. But I do not want to use WebService. Can any one help on it...

Thanks in advance...