c# - Debug .NET Framework's source code only shows disassembly in Visual Studio 2010 -

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i'm trying debug .net framework's source code using visual studio 2010 professional. followed steps described in raj kaimal's post, must doing wrong since code i'm getting see disassembly code:

alt text http://jdecuyper.github.com/images/so/vs2010debugframework.jpg

as can see in image, go source code , load symbols options disabled. nevertheless, symbols downloaded microsoft's server since can see them inside local cache directory.

the code i'm debugging goes follow:

var wr = webrequest.create("http://www.google.com"); console.writeline("web request created"); var req = wr.getrequeststream(); console.read();

when hit f11 step first line of code, window pops looking "webrequst.cs" file inside "f:\dd\ndp\fx\src\net\system\net\webrequest.cs" not exists on machine.

what missing?

in project properties, target .net framework 4.0. had same issue when compiling .net 3.5.


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