How to convert this code to Task Parallel Library. So that .net only take care to run this tasks parallel.

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C#

I’m new to multithread programming in c# .net,

I have an application that currently uses 4 Background Worker.

So I declare them:

private BackgroundWorker bw1;
private BackgroundWorker bw2;
private BackgroundWorker bw3;
private BackgroundWorker bw4;

Then configure them:

bw1 = new BackgroundWorker();
bw1.WorkerReportsProgress = true;
bw1.DoWork += new DoWorkEventHandler(bw1_DoWork);
bw1.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw1_RunWorkerCompleted);
bw1.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);

bw2 = new BackgroundWorker();
bw2.WorkerReportsProgress = true;
bw2.DoWork += new DoWorkEventHandler(bw2_DoWork);
bw2.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw2_RunWorkerCompleted);
bw2.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);

bw3 = new BackgroundWorker();
bw3.WorkerReportsProgress = true;
bw3.DoWork += new DoWorkEventHandler(bw3_DoWork);
bw3.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw3_RunWorkerCompleted);
bw3.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);

bw4 = new BackgroundWorker();
bw4.WorkerReportsProgress = true;
bw4.DoWork += new DoWorkEventHandler(bw4_DoWork);
bw4.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw4_RunWorkerCompleted);
bw4.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);

And then I use the bw1.RunWorkerAsync(), bw2.RunWorkerAsync(), and so on...

The thing is I never call them simultaneously, they are call at different point in a pretty linear way.

How do I convert this code to Task Parallel Library so that .net only take care to run this tasks parallel?