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ASP .Net Ajax BackgroundWorker Example Using Client Script & PageMethods

At A Glance

BackgroundWorker commonly use on Winform application. Basically it is an asynchronous process. Its thread is separate from main.
On user point of view backgroundworker works on background. Developers codes Winform async process easily with BackgroundWorker.
Here’s a Winform brief code of BackgroundWorker:

BackgroundWorker bgw = new BackgroundWorker();
bgw.WorkerReportsProgress = true;
bgw.WorkerSupportsCancellation = true;
 
bgw.DoWork += new DoWorkEventHandler(bgw_DoWork);
bgw.ProgressChanged += new ProgressChangedEventHandler(bgw_ProgressChanged);
bgw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgw_RunWorkerCompleted);
bgw.RunWorkerAsync();

void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
          
        }

void bgw_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            
        }

void bgw_DoWork(object sender, DoWorkEventArgs e)
        {
            
        }

However on Asp .Net Web Application there is no default BackgroundWorker server control. We have to use Asp .net Ajax to make a web async process.
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