Add small front end filter to an existing Silverlight app C# asp.net

We have silverlight app. in this, the user can click on link and get document display from the document server. Now we want to add a feature that will ask the user 1. which document type you want (via a pull down list). 2. Which dates, u need to put a calender for dates from and date to. 3. Which document numbers, this is a optional additional filter. then take the values the user adds here, and pass them into a query that is sent to the documents server. It would be nice if you can work on your local, however some have had difficulty to load it. if you can work today directly online or on Sunday, that is preferable. coding is in asp.net c# with silverlight.