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AnswerRe: Write audio to USB Modem via COM Port Pin
OriginalGriff5-Nov-17 0:35
mveOriginalGriff5-Nov-17 0:35 
GeneralRe: Write audio to USB Modem via COM Port Pin
ManojKumarShah20175-Nov-17 1:57
ManojKumarShah20175-Nov-17 1:57 
GeneralRe: Write audio to USB Modem via COM Port Pin
OriginalGriff5-Nov-17 2:05
mveOriginalGriff5-Nov-17 2:05 
GeneralRe: Write audio to USB Modem via COM Port Pin
ManojKumarShah20175-Nov-17 3:31
ManojKumarShah20175-Nov-17 3:31 
GeneralRe: Write audio to USB Modem via COM Port Pin
OriginalGriff5-Nov-17 3:40
mveOriginalGriff5-Nov-17 3:40 
GeneralRe: Write audio to USB Modem via COM Port Pin
ManojKumarShah20175-Nov-17 4:46
ManojKumarShah20175-Nov-17 4:46 
GeneralRe: Write audio to USB Modem via COM Port Pin
ManojKumarShah20175-Nov-17 5:10
ManojKumarShah20175-Nov-17 5:10 
QuestionMultithreaded function calls Pin
Kenneth Haugland4-Nov-17 5:41
mvaKenneth Haugland4-Nov-17 5:41 
Assume that I have a pipe that consists of sections of variable radiuses and that I want to make calculations at different frequencies. So I want the calculations done at different threads for each frequency, but the list of pipe sections stays the same.
public class PipeSection
{
    public PipeSection(double radius)
    {
        this.Radius = radius;
    }

    public double Radius { get; set; }


    public double Calculate(double Frequency)
    {
        return Frequency * this.Radius;
    }

}

To run the frequencies in parallel I use Rx:
CancellationTokenSource ctr = new CancellationTokenSource();
       List<PipeSection> wn = new List<PipeSection>();

       public MainWindow()
       {
           InitializeComponent();

           PipeSection[] input = { new PipeSection(5), new PipeSection(6), new PipeSection(7) };

           wn.AddRange(input);

           //Calcualte at the frequencies 0,100,2000,3000
           var FreqData = new double[] { 0, 100, 2000, 3000 }.ToObservable<double>();

           FreqData
               //Off the ui thread
               .ObserveOn(Scheduler.Default)
               //Run each thread seperatly
               .SelectMany(x => Task.Run<double>(() => DoCalcualtions(x,wn), ctr.Token))
               //Back to the UI thread
               .ObserveOnDispatcher()
               //Subscribe and start the calcualtions
               .Subscribe(args => {
                                   //Update the progressbar when a thread is completed
                                   pgbProgress.Value += 1;
                                   //Tell me what thread is completed
                                   txtText.Text += Environment.NewLine + args.ToString();
                                   },
                           () => {
                                   //All done, here I could do sorting etc.
                                   txtText.Text += Environment.NewLine + "All done";
                                 }
                           );
       }

       private double DoCalcualtions(double Freq, List<PipeSection> input)
       {
           double result=1;
           for (int i = 0; i < input.Count(); i++)
               result *= input[i].Calculate(Freq);

           return result;
       }

This does compile and run, but I have some questions regarding if the multithread calls:
1) Will I have to clone my list of Pipesections for each frequency (i.a. for each thread I want to run) ?
2) Can the DoCalcualtion function now be accessed in parallel or will I have to move it inside the PipeSection class to ensure this?
3) Is there a much better way of doing this?

-Kenneth
AnswerRe: Multithreaded function calls Pin
Sascha Lefèvre4-Nov-17 7:13
professionalSascha Lefèvre4-Nov-17 7:13 
GeneralRe: Multithreaded function calls Pin
Kenneth Haugland4-Nov-17 7:49
mvaKenneth Haugland4-Nov-17 7:49 
GeneralRe: Multithreaded function calls Pin
Sascha Lefèvre4-Nov-17 8:01
professionalSascha Lefèvre4-Nov-17 8:01 
GeneralRe: Multithreaded function calls Pin
Kenneth Haugland4-Nov-17 8:10
mvaKenneth Haugland4-Nov-17 8:10 
GeneralRe: Multithreaded function calls Pin
Sascha Lefèvre4-Nov-17 8:23
professionalSascha Lefèvre4-Nov-17 8:23 
QuestionHow to make the ListView to display each thumbnail immediately after it's loaded? [solved] Pin
alin14-Nov-17 4:02
alin14-Nov-17 4:02 
AnswerRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Dave Kreskowiak4-Nov-17 4:49
mveDave Kreskowiak4-Nov-17 4:49 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
alin14-Nov-17 4:51
alin14-Nov-17 4:51 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Dave Kreskowiak4-Nov-17 5:17
mveDave Kreskowiak4-Nov-17 5:17 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
alin14-Nov-17 5:06
alin14-Nov-17 5:06 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Dave Kreskowiak4-Nov-17 5:19
mveDave Kreskowiak4-Nov-17 5:19 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
alin14-Nov-17 6:57
alin14-Nov-17 6:57 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Sascha Lefèvre4-Nov-17 7:27
professionalSascha Lefèvre4-Nov-17 7:27 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
alin14-Nov-17 8:05
alin14-Nov-17 8:05 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Sascha Lefèvre4-Nov-17 8:13
professionalSascha Lefèvre4-Nov-17 8:13 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
alin14-Nov-17 8:22
alin14-Nov-17 8:22 
GeneralRe: How to make the ListView to display each thumbnail immediately after it's loaded? Pin
Sascha Lefèvre4-Nov-17 8:25
professionalSascha Lefèvre4-Nov-17 8:25 

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