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Search a .NET library (Silverlight) to represent data filter expressions

There is a common scenario when a client retrieves data from a server using some kind of filter.

I am interested to know which .NET (Silverlight) libraries exist to help in introducing such filters. To be truly useful, a filter object model must have the following qualities:

  • Being easily (de) serializable to something cross-platform like XML / JSON / plain string. For example, linq expressions are not a good example because they are not easily serializable. There are ways to convert a linq expression to XML, but I cannot call them light.
  • Be easily accessible to transform the filter into something suitable for data access. For example, the ability to translate a filter into a linq expression means that it can be served in any LINQ-compatible DAL expression.
  • Support incremental design and modification. Returning to linq expressions, they support incremental construction, but not modification.
  • A really nice addition would be ready to port a Silverlight or HTML component based on the user interface so that the user can create such filters.

Thank.

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WCF RIA - . IQueryable . , , .

WCF, RESTful; IQueryable, , . Entity Framework. , . return top 10 :

http://localhost/myservice.svc/Products/ $top = 10

OData. WCF xml json.

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