Serializing and Deserializing Expression Trees in

问题:

Is there a way to Deserialize Expressions in C#, I would like to store Expressions in a Database and load them at run time.

回答1:

I continued work on the library that was mentioned by Serializing and Deserializing Expression Trees in C#

It looks like the project was abandoned (2008) but I did some work on it and now it works with .NET 4.0 and Silverlight. I made bug fixes to their code and also made it more DAL-independent.

http://expressiontree.codeplex.com/

回答2:

Other option is the Expression Tree Serialization project on code.msdn.com - would appear to be more what is needed here?

UPD: Now http://archive.msdn.microsoft.com/exprserialization

回答3:

There\'s an project on GitHub/Nuget called MetaLinq that aims to make working with expression tress more easy.

It converts between normal Expressions and \'EditableExpressions\' which are mutable and fully Serializable, so can be used with Json, Xml, Binary etc.

Also check this blog post for more info.

回答4:

have a look at my new library Serialize.Linq. It serializes linq expressions to json, xml and binary.

回答5:

Not in full; however, the Dynamic LINQ sample may help a bit. You can certainly serialize an expression to a string (to an extent - generics look a bit screwy), but there is no inbuilt parser.

回答6:

WCF RIA Services allows for serializing IQuerayble<T>

WCF RIA Services Part 3 – Updating Data

回答7:

I was working on a project for serializing expressions. It\'s OK and you can use it. http://www.codeproject.com/Articles/851187/ServicePredicateBuilder-for-creating-Serializable