Parallel.NET Background Task Scheduler

CodeCanyon Parallel.NET Background Task Scheduler 3721306
Script \ .NET Script \ Miscellaneous
Application \ Background \ Observers \ Parallel \ Services \ Applications

.NET Script - Parallel.NET Background Task Scheduler 3721306 by AvantPrime @ CodeCanyon

Script \ .NET Script \ Miscellaneous

There are extra licensing options available for this product on , the creators of Parallel.NET. Discounted prices also available.

The Parallel.NET component provides you with a simple and robust way of getting your .NET applications to perform regular tasks at configurable intervals. There is no interference to other aspects of the application including the UI or users.

Check out Web Miner , a real world web content mining application which takes advantage of Parallel.NET. See an application preview here while paying close attention to the CPU usage, memory usage and mining duration to see Parallet.NET in action.

What are the features?

- Execute tasks at configurable intervals

- Run multiple tasks at different intervals using 1 ParallelScheduler

- Configure whether background tasks use the ThreadPool or create their own thread

- Specify whether the task should run infinitely or for a limited number of times

- Add observers for any background task having the observers alerted each time the task completes

- Allow the observers to manipulate the output from the task that completed

- Specify how the observers will be executed by the ParallelScheduler – Sequentially or Concurrently

- Configurable exception handling just in case a task does not handle its own exceptions

When would I use this?

- Loading news feeds

- Clean-up operations

- Sending emails without reducing the responsiveness of the UI

- Monitoring internal and external resources

- Updating devices or other services with new information

- Refresh your data sources from external/internal web services

- Monitor database tables for changes or new information

- Monitor inboxes for new emails

- Process video, images, and other multimedia files

- Send large files

- Uploading multiple files (FTP, etc.)

Tasks that take a long time to complete including tasks that are processor intensive, hard disk intensive or task that access external resources such as Web services, databases (in some cases), news feeds, etc. are ideal candidates to be run in the background. Once these tasks are completed the observers will be notified and then they can perform their work which can include updating the UI, notifying users of changes & updates, etc.

This component is built using the .NET 2.0 Framework which means in can be used in all .NET applications that are using the 2.0 framework or higher. This component can be used in all types of .NET applications including.

- Console

- Windows Forms


- ASP.NET WebForms


- Windows Services

- Web Services (XML/WCF)

- Silverlight

- Azure

Is it reliable?
The component also ensures that many pitfalls are not encountered including.

- No Deadlocks

- No Memory leaks – clean up through the dispose method & consider problems such as the lapsed listener

- No Exceptions leaks – Exception handling to ensure undesired termination of the application does not occur

- ASP.NET ThreadPool & Service Unavailable handling – Gives control of whether ThreadPool threads are used (by default no). This ensures that threads are not taken away from high availability ASP.NET applications causing the dreaded “Service Unavailable” message

- Task/Background work structure – Flexible mechanism for creating complex background operations

- Strong name signed – Allows referencing in other application that are strong named signed & also installing into the GAC

- Support custom shutdown during application pool recycling for web applications.

What is in the package?

- .NET 2.0 Assemblies

- Debug files (PDB)

- Xml comments (Intellisense)

- Usage documentation

- API Documentation

- 2 x Console demo application

- ASP.NET MVC demo application

- ASP.NET Webforms demo application

- WinForm demo application

- C# & VB.NET Source Code

- Visual Studio 2010 SP1 & 2012 Solution

How would I use this component?

Example of how to use the ParallelScheduler in conjunction with the UrlReaderBackgroundWork to infinitely poll a URL every 5 seconds. The work is scheduled to start immediately using ThreadPool threads with two registered observers that will be executed in Parallel every time the work is done.

Click here to learn how to use Parallel.NET .

Ask any questions or suggest features plus check out our growing forum at .

01/12/2013 – Added Support for application pool recycling. The work instance can shut itself down properly during an automatic or manual application pool recycling event.

18/12/2013 – Added VB.NET source code.

Last Update: 30 September 14; Compatible Browsers: IE6, IE7, IE8, IE9, IE10, IE11, Firefox, Safari, Opera, Chrome; Files Included: Visual Basic VB, C# CS; Software Version: .NET 2.0, .NET 3.0, .NET 3.5, .NET 3.7, .NET 4.0, .NET 4.5.

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Keywords: background monitor, background scheduler, background work, concurrent, high availability, long running tasks, multi-tasking, multiple jobs, observer pattern, parallel work, polling, scheduler, thread-safe, threading, worker threads.

Tags: background, scheduler, parallel, pattern, observer

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