Passing a method to a backgroundworker dowork

Question

In the code below, is there a way to instead of always subscribing the updateWorker_DoWork method, pass it a method like this

public void GetUpdates(SomeObje         


        

Answer 1

For your RunWorkerAsync() you can pass any argument you like. You can just put a Func() or Action() into it and in your DoWork() you just cast the object back to this specific type and call it.

Examples are here and here.

private void InitializeBackgroundWorker()
{
    _Worker = new BackgroundWorker();

    // On a call cast the e.Argument to a Func and call it...
    // Take the result from it and put it into e.Result
    _Worker.DoWork += (sender, e) => e.Result = ((Func)e.Argument)();

    // Take the e.Result and print it out
    // (cause we will always call a Func the e.Result must always be a string)
    _Worker.RunWorkerCompleted += (sender, e) =>
    {
        Debug.Print((string)e.Result);
    };
}

private void StartTheWorker()
{
    int someValue = 42;

    //Take a method with a parameter and put it into another func with no parameter
    //This is called currying or binding
    StartTheWorker(new Func(() => DoSomething(someValue)));

   while(_Worker.IsBusy)
       Thread.Sleep(1);

   //If your function exactly matches, just put it into the argument.
   StartTheWorker(AnotherTask);
}

private void StartTheWorker(Func func)
{
    _Worker.RunWorkerAsync(func);
}

private string DoSomething(int value)
{
    return value.ToString("x");
}

private string AnotherTask()
{
    return "Hello World";
}