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ise to mark types that you intend to store in session state as serializable so that your source code doesn t have to change if the process model changes. What role does Web. config play in Congo. com s operation It stores the connection string that Congo. aspx uses to connect to the Pubs database. Storing the connection string in Web. config rather than hardcoding it into Congo. aspx enables it to be chang. , ndle 3 are1, are2, are3 WaitHandle. WaitAny syncobjects Changing WaitAny to WaitAll blocks the calling thread until all of the AutoResetEvents are set WaitHandle. WaitAll syncobjects WaitAny and WaitAll also come in versions that accept time out values. Time outs can be expressed as integers milliseconds or TimeSpan values. Should you ever need to interrupt a thread while it waits for one or more synchroni. windows, aitAll after the application has determined that one of the synchronization objects will never become signaled. Serializing Access to Collections The vast majority of the classes in the. NET Framework class library are not thread safe. If you want to share an ArrayList between a reader thread and a writer thread, for example, it s important to synchronize access to the ArrayList so that one thread can t re. cheap windows 8.1 rtm 64 bit product key.

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