C# backgroundworker

BackgroundWorker provides an interface to show the work at background.

BackgroundWorker bgw = new BackgroundWorker();

Cancellation and progress report are two important properties.
bgw.WorderSupportsCancellation; //whether supports cancellation or not
bgw.WorkerReportsProgress; //whether reports progress or not
bgw.ReportProgress(20); //report pregress 20%
bgw.CancelAsync; //calcel it

An example of BackgroundWorder handling button click in Visual C#.
using System.Threading.Thread;
void dotButton_Click(object sender, EventArgs e)
BackgroundWorker bgw = sender as BackgroundWorker;
for (int i = 1; i < 50; i++)
if (bgw.CancellationPending == true)
int k = i * 2;

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