Is there any way to get the classes from System.Collections.Concurrent in .NET 3.5?

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+1 Q:

Is there any way to get the classes from System.Collections.Concurrent in .NET 3.5?

The question pretty much says it all.

Does anyone know of any way to get the collection classes from the System.Collections.Concurrent namespace in .NET 3.5?

I guess what I'm asking is whether anyone has gone through the trouble of porting these classes to their own DLL that could be accessed from .NET 3.5.

+3 A:

No, they are in the 4.0 version of System.dll. So trying to pull that in to a 3.5 app would not work.

Rex M 2010-06-08 03:44:47

@Rex M: I just discovered that they in fact *are* available in .NET 3.5, as part of the Rx extensions library.

Dan Tao 2010-06-08 14:16:04

@Dan great! There is nothing I know of in those classes that are dependent on the 4.0 runtime, so the implementation could be copied into any 3.5 assembly.

Rex M 2010-06-08 14:37:37

+1 A:

I just discovered this by accident.

It turns out these collections were available all along through Microsoft's Reactive Extensions (Rx) library, which is available for .NET 3.5, and which in fact I have been using already for some time (just never realized they were there).

The System.Collections.Concurrent namespace is provided by System.Threading.dll.

Just posting this here for posterity.

Dan Tao 2010-06-08 14:09:45

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Is there any way to get the classes from System.Collections.Concurrent in .NET 3.5?

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