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The sample includes these components: # *An Expression Tree serialization API*: A general purpose XML serialization of Expression Trees. This should work over any expression tree – though there a...
The sample includes these components: # *An Expression Tree serialization API*: A general purpose XML serialization of Expression Trees. This should work over any expression tree – though there are inevitably bugs. The serialization format is fairly crude, but has been expressive enough to support the variety of expression trees I’ve tried throwing at it. # *A wrapper for serializing/deserializing LINQ to SQL queries*: A wrapper around the expression serializer allows serializing LINQ to SQL queries and de-serializing into a query against a given DataContext. # *A WCF service which accepts serialized query expression trees and executes against a back-end LINQ to SQL*: To enable querying across tiers, a WCF service exposes service methods which execute serialized queries. The service implementation deserializes the queries against its LINQ to SQL connection. # *An IQueryable implementation wrapping the client side of the WCF service*: The client-side calling syntax is simplified by providing an IQueryable implementation. This implementation, RemoteTable, executes queries by serializing the query expression tree and calling the appropriate service. The object model that the service user is able to query against is imported by the WCF service reference per the DataContracts on the LINQ to SQL mapping on the server side.
Popular tags: LINQ, .NET, C#, Expression Tree, LINQ to SQL, Serialization
Downloads: 22 | Started: Nov 20 2008  | Contributors: 2
Language-Integrated Query (LINQ) provides a unified querying model for accessing data regardless of where that data is stored. This groundbreaking innovation bridges the gap between the world of ob...
Language-Integrated Query (LINQ) provides a unified querying model for accessing data regardless of where that data is stored. This groundbreaking innovation bridges the gap between the world of objects and the world of data. This source code demonstrates the basics required to write an IQueryable LINQ provider that works against relational databases. The current implementation is based on LINQ to SQL and only works with Microsoft SQL Server but can easily be modified to support other relational databases such as Oracle. This sample LINQ provider also supports update, delete and insert operations and implements an Object Tracking mechanism similar to the one offered by LINQ to SQL. There is also an MSDN article accompanying this article that describes its internal workings. http://msdn.microsoft.com/en-us/vcsharp/ee672195.aspx
Popular tags: Data Access, Expression Tree, LINQ, LINQ Provider, LINQ to SQL
Downloads: 8 | Started: Sep 30 2008  | Contributors: 2
ExpressionSerializer.cs and ExpressionSerializationTypeResolver.cs fixed for VS2010 beta 2, please test it.
ExpressionSerializer.cs and ExpressionSerializationTypeResolver.cs fixed for VS2010 beta 2, please test it.
Popular tags: Serialization, LINQ to SQL, Expression Tree, ExpressionSerializer, C#
Downloads: 0 | Started: Mar 5 2010  | Contributors: 1
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