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Old November 17th, 2009, 07:27 AM
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I don't think it's sent to the server. It's sent to WebForm_DoCallback where it's stored in the "pending callbacks" so it can be provided again when the callback returns.

I took your example, turned on Fiddler and never saw the context value getting passed over the wire.

I am not 100% sure, but I think the context is a 100% client side context object.

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