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Editorial Team
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Asked: 2026-06-10T22:33:32+00:00

I’m using a Producer-Consumer pattern and I use a BlockingCollection that produces data and

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I’m using a Producer-Consumer pattern and I use a BlockingCollection that produces data and consumes data from it. I call a method to produce the data and then set the BlockingCollection to CompleteAdding so that the consumer consumes all the data from the BlockingCollection. After some processing the application wants to add some other data to the BlockingCollection, but it can’t because it is set to CompleteAdding, how can I set CompleteAdding to false, or how can I consume all the data from the BlockingCollection, not waiting for the ComleteAdding?

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  1. Editorial Team

    You can’t – the whole point of calling CompleteAdding is to say, “There will never be any more data added to this collection. Once it’s empty, you know you’re done.” What you’re asking for is a bit like saying, “After I’ve closed a network connection, how can I reopen it so I can write more data?”

    The fact that you want to suggests you should rethink your design. Perhaps you should be creating a new BlockingCollection at this point instead? Or perhaps you don’t really want to call CompleteAdding to start with?

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