Can't set breakpoints on an auto-property setter ? Why?

Apparently VS 2008 does not allow setting a breakpoint just on the setter of an auto-property.

I.e. if I define an auto-property like this:

    public int CurrentFramesize
    {
        get; 
        protected set;
    }

and then try to set a breakpoint on the setter line, the whole auto-p开发者_如何转开发roperty turns breakpoint-red.

This works just fine for normal properties, so any idea why auto-properties get this special (restrictive) treatment? Are they more than just syntactic sugar to normal properties with a hidden backing field?

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Using Visual Studio 2008, 2010, 2012:

1. Go to the Breakpoint window
2. New->Break at Function…

3. For the get, type: ClassName.get_CurrentFramesize()

   For the set, type: ClassName.set_CurrentFramesize(int)

You'll get a "No Source Available" when the breakpoint is hit, but you'll get the calling location in the call stack.

I found this solution here: http://social.msdn.microsoft.com/Forums/en/vsdebug/thread/b1dd0dc3-e9c1-402a-9c79-a5abf7f7286a

See also: Debugging automatic properties

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The short answer is: this bug feature ended up on the cutting room floor for VS2008.

(Longer answer - hat tip @jdk)

All we've got is a vague promise that it's being considered for vNext.

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This feature is implemented in Visual Studio 2015

http://blogs.msdn.com/b/visualstudioalm/archive/2014/11/14/set-breakpoints-on-auto-implemented-properties-with-visual-studio-2015.aspx

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No you can't set a break point on them, but then what would you check? The variable for storage of the auto-property is only assigned at runtime and as such there isn't a variable for the debugger to show/access.