C# Insert element in a BlockingCollection

This seems impossible. You can think of BlockingCollection as a FIFO queue, you can only add or delete data in order.

But there is a way to try it, convert it into a list, insert the data into the list, and then create a new BlockingCollection based on the list. It is not elegant, but it may suit your requirements.

             switch (type)  
            {  
                case 1:  
                    //ListPackage.Add(currentPackage);  
                    BlockingCollectionPackage.Add(currentPackage);  
                    break;  
                case 2:  
                    {  
                        List<Package> packages = BlockingCollectionPackage.ToList();  
                        packages.Insert(0, currentPackage);  
                        BlockingCollectionPackage = new BlockingCollection<Package>(new ConcurrentQueue<Package>(packages));  
                        break;  
                    }  
            }  

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