Is there a way I can provide my user 'Search as you type' functionality in my SSRS reports filters, I have multiple valued string parameters, they convert to checked listboxes in report manager, and user have to find and select one by one. This is a tedious work if there are hundreds of records in filter.
This does not come out of the box with SSRS. You can extend SSRS using the ReportExecution2008 web services and gain a lower level of granularity.